Appendix A. eThekwini Fibre Optic Standards Version 3 Tenders/Appendix A. Ethekwini... · tubes to...

1

ETHEKWINI MUNICIPALITY

FIBRE OPTIC

INSTALLATION OF COMMUNICATION TUBING FOR UNDERGROUND FIBRE OPTIC

INSTALLATION OF UNDERGROUND FIBRE


FIBRE OPTIC STANDARDS

Version 3



Part 1


CABLE

Part 2

UNDERGROUND FIBRE OPTIC CABLE INTO COMMUNICATION

TUBING




INTO COMMUNICATION

2

INSTALLATION OF COMMUNICATION TUBING FOR

UNDERGROUND FIBRE OPTIC CABLE

1. INTRODUCTION

1.1 Scope

This document details the requirements for the installation of underground communication

tubes to house fibre optic communication cables.

This includes the installation of the manholes along the route, which are required to

facilitate the future pulling

maintenance.

1.2 Order of Description

This order of description for this part of the standard is as follows:

• Definitions

• Specification of Materials

• Laying Communication Tubes for Underground Fibre Optic Links

• Handover Requirements After Laying of Communication Tubes

Specifications for these components of the Fibre Optic System follows:

2. DEFINITIONS

Communication Tubes: The underground tubing, as

through which fibre optic cable is pulled for the establishment of communication links between two

points.

Communication Manholes: The manholes, which are either designed for use within a pavement

area or for use within the roadway itself, which are situated along a route and connected by

communication tubes.

Fibre Communication Panel (FCP):

terminated into a patch tray, and made availab



Version 3

PART 1

TECHNICAL SPECIFICATION FOR


UNDERGROUND FIBRE OPTIC CABLE


tubes to house fibre optic communication cables.


facilitate the future pulling-in of fibre optic cable and for future fault finding and


Definitions

Specification of Materials

Laying Communication Tubes for Underground Fibre Optic Links

Handover Requirements After Laying of Communication Tubes


The underground tubing, as specified by the MetroConnect


The manholes, which are either designed for use within a pavement


Fibre Communication Panel (FCP): The panel within a substation where the fibre optic cable is

terminated into a patch tray, and made available for optical connection to various optical





in of fibre optic cable and for future fault finding and

Laying Communication Tubes for Underground Fibre Optic Links



MetroConnect Engineer,




The panel within a substation where the fibre optic cable is

le for optical connection to various optical

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equipment.

Manhole Ball Markers: A device which is attached to the inside of a manhole cover, which

together with a sensor carried by an operator, is used to pinpoint the exact location of the manhole

beneath the surface of the ground.

3. SPECIFICATION OF MATERIALS

The materials include Tubing, Manholes and Manhole Ball markers. Details of the materials to be

used are as follows:

3.1. Specification of Communication Tubes

Communication Tubing

underground communication route must be

(HDPE) tubing with rodent repellent additives

Sections of HDPE tubing must be joined using water

3.2. Specification of Communication Manholes

Manholes within roadways are to be of precast concrete or brick, and

constructed and installed according to

specification.

Manhole covers must be polymer

3.3. Specification of Manhole Ball Markers to Pinpoint Communication Manholes

New technology location devices/ antennae /ball markers

be hung inside each manh

completed.



Version 3

A device which is attached to the inside of a manhole cover, which


the surface of the ground.

SPECIFICATION OF MATERIALS


Specification of Communication Tubes

Communication Tubing installed between the last manhole positions on each side of an

underground communication route must be 110mm, cream, hard drawn polyetherlene

(HDPE) tubing with rodent repellent additives (DN110).

Sections of HDPE tubing must be joined using water-tight pipe couplers.

Specification of Communication Manholes

Manholes within roadways are to be of precast concrete or brick, and

constructed and installed according to the City Engineering Unit’

Manhole covers must be polymer in construction and be lockable.

Specification of Manhole Ball Markers to Pinpoint Communication Manholes

New technology location devices/ antennae /ball markers (3M code 14014 orange)

be hung inside each manhole and used to locate manholes after construction has been





installed between the last manhole positions on each side of an

, hard drawn polyetherlene

tight pipe couplers.

Manholes within roadways are to be of precast concrete or brick, and are to be located,

ing Unit’s requirements and

Specification of Manhole Ball Markers to Pinpoint Communication Manholes

(3M code 14014 orange) are to

ole and used to locate manholes after construction has been

4. INSTALLATION OF COMMUNICATION TUBING ROUTES

This includes the installation of the communication tubing itself, the communication

manholes and the ball markers.

Please read ANNEXURE A: EXCAVATION CODE OF PRACTICE

4.1. Excavation and laying of Communication Tubing

The Contractor shall be responsible for all trenching excavations unless specified to the contrary.

The Contractor shall, before trenching commsite conditions. The procedure and order of doing the work shall be planned in conjunction with the general construction program for other services and building requirements.

The Contractor shall acquaint himstorm water pipes, water mains, sewer mainnecessary Wayleaves etc.shall approach the appropriate Municipal authority and any other authority which may be involved. Special attention is drawn to GAS and PETROL pipelines that does not belong to Ethekwini Municipality.

The Contractor will be held responsible for damage to any existing services brought to his attention by the MetroConnect

The Contractor shall take all the necessary precautions Construction Regulations. The contractor shalland/or lights in accordance with the City Engineers specification for signage at roadworks to ensure that the public and/or employees on site are not endangereProvision must also be made for reasonable, continuous and all weather pedestrian access with due regard for pedestrian safety.

The Contractor shall ensure that the excavations will not endanger existing structures, roads, railways, other site construcendanger motorists or pedestrians. In such instances where it is proposed to use an existing bridge structure to carry ducting, approval in writing shall be soughtProvision Department, Structures Branch. be cut, cored, or modified in any way without prior approval from the Roads Provision Department.



4

INSTALLATION OF COMMUNICATION TUBING ROUTES


manholes and the ball markers.

ANNEXURE A: EXCAVATION CODE OF PRACTICE carefully.

Excavation and laying of Communication Tubing

The Contractor shall be responsible for all trenching excavations unless specified to the

The Contractor shall, before trenching commences, familiarize himself with the routes and he procedure and order of doing the work shall be planned in conjunction

with the general construction program for other services and building requirements.

The Contractor shall acquaint himself with the position of all the existing services such as storm water pipes, water mains, sewer mains, gas pipes, telephone cables

etc. before any excavations are commenced. For this purpose he shall approach the appropriate Municipal authority and any other authority which may be involved. Special attention is drawn to GAS and PETROL pipelines that does not belong to

The Contractor will be held responsible for damage to any existing services brought to his MetroConnect Engineer and shall be responsible for the cost of repairs.

The Contractor shall take all the necessary precautions in terms of thConstruction Regulations. The contractor shall provide the necessary warning signs

in accordance with the City Engineers specification for signage at to ensure that the public and/or employees on site are not endangere

Provision must also be made for reasonable, continuous and all weather pedestrian access with due regard for pedestrian safety.

The Contractor shall ensure that the excavations will not endanger existing structures, roads, railways, other site constructions or other property. Excavations should also not endanger motorists or pedestrians.

In such instances where it is proposed to use an existing bridge structure to carry ducting, approval in writing shall be sought by the ContractorProvision Department, Structures Branch. Under no circumstance shall the structure be cut, cored, or modified in any way without prior approval from the Roads Provision Department.



carefully.

The Contractor shall be responsible for all trenching excavations unless specified to the

ences, familiarize himself with the routes and he procedure and order of doing the work shall be planned in conjunction

with the general construction program for other services and building requirements.

self with the position of all the existing services such as s, gas pipes, telephone cables and obtain the

before any excavations are commenced. For this purpose he shall approach the appropriate Municipal authority and any other authority which may be involved. Special attention is drawn to GAS and PETROL pipelines that does not belong to

The Contractor will be held responsible for damage to any existing services brought to his Engineer and shall be responsible for the cost of repairs.

in terms of the OHS Act and provide the necessary warning signs

in accordance with the City Engineers specification for signage at to ensure that the public and/or employees on site are not endangered.

Provision must also be made for reasonable, continuous and all weather pedestrian

The Contractor shall ensure that the excavations will not endanger existing structures, Excavations should also not

In such instances where it is proposed to use an existing bridge structure to carry by the Contractor with the Roads

Under no circumstance shall the structure be cut, cored, or modified in any way without prior approval from the Roads

Trenches shall connect the points in a straight line. Any existing services will need the

The MetroConnect Engineer reserves the right to alter any cable route or portion thereof in advance of cable laying. The removal of obstructionMetroConnect Engineer. Cable trenches for one or two 110 mm Sleeves shall not be less than 300 mm wide and need not be more than 450 mm wide. These dimensions must be maintained for the entitrench depth.

The width shall be increased where more sleeves are installemm between sleeves.

Sleeves will be installed at a minimum depth of and 1metre in roadwaysthe laid sleeve. The Contractor may need to adjust trench depths to accommodate bedding where required.require written permission from the Roads Department which shall the Contractor. The padding and bedding materials will be sieved to a maximum The backfill will be excavated material, large objects may not be dumped into the trench. Removal of rubble is the respon Re-instatement of asphaltedStormwater Maintenancedocumentation by the Contractor to ensure that trenches are repaired timeously.

All trench depth measurements shall be made to the top of the sleeve when laid, ready for backfill.

The MetroConnect Engineer reserves the right to inspect the installation at any stage during the course of construction. Such inspections will, however, not deem the portions inspected as being complete or accepted and the Contractor shall remain responsible for completing the installation fully in accordance with the Contract Documents.

4.2. Laying of Communication Tubes within



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Trenches shall connect the points in a straight line. Any deviations due to obstructions or need the prior approval of the MetroConnect Engineer.

Engineer reserves the right to alter any cable route or portion thereof in advance of cable laying. The removal of obstructions along the cable routes shall be subject to the approval of the

Engineer.

Cable trenches for one or two 110 mm Sleeves shall not be less than 300 mm wide and need not be more than 450 mm wide. These dimensions must be maintained for the enti

The width shall be increased where more sleeves are installed to allow for spacing of 50

Sleeves will be installed at a minimum depth of 600 mm on sidewalks and verges, and 1metre in roadways, measured from surface level to the most upper surface of the laid sleeve. The Contractor may need to adjust trench depths to accommodate bedding where required. Trench depths below the minimum specification shall

ssion from the Roads Department which shall

The padding and bedding materials will be sieved to a maximum aggregate

The backfill will be excavated material, large objects may not be dumped

Removal of rubble is the responsibility of the Contractor.

asphalted and paved areas will be done by Roads DepartmentStormwater Maintenance, unless otherwise agreed. Submission of the necessary

by the Contractor for permanent road reinstatement must bto ensure that trenches are repaired timeously.

All trench depth measurements shall be made to the top of the sleeve when laid, ready for

Engineer reserves the right to inspect the installation at any stage the course of construction. Such inspections will, however, not deem the portions

inspected as being complete or accepted and the Contractor shall remain responsible for completing the installation fully in accordance with the Contract Documents.

Laying of Communication Tubes within Electricity Substation Perimeters


deviations due to obstructions or Engineer.

Engineer reserves the right to alter any cable route or portion thereof in

s along the cable routes shall be subject to the approval of the

Cable trenches for one or two 110 mm Sleeves shall not be less than 300 mm wide and need not be more than 450 mm wide. These dimensions must be maintained for the entire

d to allow for spacing of 50

on sidewalks and verges, level to the most upper surface of

the laid sleeve. The Contractor may need to adjust trench depths to accommodate Trench depths below the minimum specification shall

ssion from the Roads Department which shall be acquired by

aggregate size of 10 mm.

The backfill will be excavated material, large objects may not be dumped and compacted

ill be done by Roads Department & , unless otherwise agreed. Submission of the necessary

for permanent road reinstatement must be prompt

All trench depth measurements shall be made to the top of the sleeve when laid, ready for

Engineer reserves the right to inspect the installation at any stage the course of construction. Such inspections will, however, not deem the portions

inspected as being complete or accepted and the Contractor shall remain responsible for completing the installation fully in accordance with the Contract Documents.

Substation Perimeters

Two tubes as specified in Section 3.1 are to be laid unless otherwise specified by the

MetroConnect Project Engineer.

Where communication tubes are to be installed into the same tren

laying of supply cables, the tubes must be laid at the same depth as the supply cables.

There should be some spacing between the tubes and the cables to prevent excessive

heating of the communication tubes in the event of a fault occur

Tubes may be laid together with copper pilot cables.

Where trenching is specifically for the installation of communication tubes, the two tubes as

specified in Section 3.1 must be bu

entire route.

Tubes laid within substations must be laid within the substation trenches, where practical.

Where large bending radii permit, the above HDPE tubing may also be installed from the

last manhole position into the trench inside a substation building. If the required bends into

the substation building are too tight for the HDPE, or where the route terminates into an

FCP, then corrugated 50mm diameter DN50 Kabelflex conduit mentioned in Section

must be used for the last section of the link. (Stock Code 101048

stores).

Correct water-tight pipe couplers between sections of communication tubing (Stock code

105171 available from Electricity stores

mud. Connections between HDPE and DN50 Kabelflex must also be water

4.3. Laying of Communication Tubes into same Trenches opened

services

Where communication tubes are to be installed into the

laying of other utility services (new water pipes/new electrical cables), the tubes must be

laid at the same depth as the other utility services. There should be some spacing

between the tubes and the existing cables to preven

communication tubes in the event of a fault occurring in the electrical cable. Tubes may be

laid together with copper pilot cables.

4.4. Installation of Communication Manholes

Communication manholes, as specified in Section 3.

less. Manholes are also to be installed where the cable bends beyond 30 degrees.

Communication tubes must be well sealed at entry/ exit points of the manhole. All tubing



6


Project Engineer.

Where communication tubes are to be installed into the same tren



heating of the communication tubes in the event of a fault occurring in the supply cable.

Tubes may be laid together with copper pilot cables.


specified in Section 3.1 must be buried not less than 0,8m deep (preferably 1m) for the



ole position into the trench inside a substation building. If the required bends into


FCP, then corrugated 50mm diameter DN50 Kabelflex conduit mentioned in Section

must be used for the last section of the link. (Stock Code 101048 available from Electricity

tight pipe couplers between sections of communication tubing (Stock code

available from Electricity stores) must be used to prevent ingress of moisture and

mud. Connections between HDPE and DN50 Kabelflex must also be water

Laying of Communication Tubes into same Trenches opened

Where communication tubes are to be installed into the same trenches opened for the



between the tubes and the existing cables to prevent excessive heating of the


laid together with copper pilot cables.

Installation of Communication Manholes

Communication manholes, as specified in Section 3.2 are to be placed at 200m intervals or





Where communication tubes are to be installed into the same trenches opened for the



ring in the supply cable.


ried not less than 0,8m deep (preferably 1m) for the



ole position into the trench inside a substation building. If the required bends into


FCP, then corrugated 50mm diameter DN50 Kabelflex conduit mentioned in Section 3.1

available from Electricity

tight pipe couplers between sections of communication tubing (Stock code

prevent ingress of moisture and

mud. Connections between HDPE and DN50 Kabelflex must also be water-tight.

Laying of Communication Tubes into same Trenches opened for other Utility

same trenches opened for the



t excessive heating of the


2 are to be placed at 200m intervals or



ends within the manhole must be sealed wit

4.5. Installation of Ball Markers

Communication Ball Markers as specified in Section 3.3 must be hung from the inside of

the manhole cover to facilitate the future location of all joints and manholes. The

Communication Ball Marker must be attached close to the lid where it may be detected,

with rot resistant nylon fibre string. Alternatively it may be attached via a cabletie onto a

short loop of galvanised wire made to protrude into the manhole and secured at the time

when the lids are filled with cemented.

4.6. Joining between Communication Tubing and overhead Optical ground Wire

(OPGW).

There may be instances where the route requires a sections or sections which are

overhead. This requires a joint between communication tubes and overhead Optical

Ground Wire (OPGW).

In these instances the approved stainless steel dome

top of a vertically installed 2m high, 50mm diameter stainless steel pipe buried 0,8m into

the ground. The pipe must be secured to the inside of the tower leg/ just off the gantry or

pylon leg, using an approved stainle

Sufficient additional OPGW slack is to be coiled and secured above the Anti

on the OPGW side of the joint prior to splicing, to enable the joint to be worked on at least

5m from the base of the tower/ gantry.

Where HDPE is run to the joint position and not DN kabelflex, a length of DN50 Kabelflex

tubing must be joined to the HDPE tubing, which will be inserted into the base of the

stainless steel pipe during the splicing process. Joints must be taped with self

amalgamating rubber tape to prevent the ingress of moisture and sand. Approximately 5m

of DN50 Kabelflex slack must be retained at the base of the stainless steel tube.

5. HANDOVER REQUIREMENTS AND PROCEDURES

The following paperwork must be completed and han

Engineer before handover and b

Careful attention must be made to Annexure C, which outlines the format of the GIS data



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ends within the manhole must be sealed with the proper supplier's endcaps.

Installation of Ball Markers



Ball Marker must be attached close to the lid where it may be detected,



hen the lids are filled with cemented.

Joining between Communication Tubing and overhead Optical ground Wire



In these instances the approved stainless steel dome jointboxes must be mounted onto the



pylon leg, using an approved stainless steel bracket.

Sufficient additional OPGW slack is to be coiled and secured above the Anti


5m from the base of the tower/ gantry.

s run to the joint position and not DN kabelflex, a length of DN50 Kabelflex



g rubber tape to prevent the ingress of moisture and sand. Approximately 5m


HANDOVER REQUIREMENTS AND PROCEDURES

The following paperwork must be completed and handed over to the

Engineer before handover and before payment may be authorized.



h the proper supplier's endcaps.



Ball Marker must be attached close to the lid where it may be detected,



Joining between Communication Tubing and overhead Optical ground Wire



jointboxes must be mounted onto the



Sufficient additional OPGW slack is to be coiled and secured above the Anti-climbing gear


s run to the joint position and not DN kabelflex, a length of DN50 Kabelflex



g rubber tape to prevent the ingress of moisture and sand. Approximately 5m


ver to the MetroConnect Project


that needs to be submitted to the

of the ‘as-built’ documentation.

5.1 Documentation of Route

The entire tubing route, all manhole

co-ordinates marked on the associated

Office for capture into the drawing office database, to facilitate future fault location.

A copy of the final ‘as-built' drawing and the completed "Communication Tubing Handover

Form" form detailed in ANNEXURE

Engineer/ Supervisor overseeing the installation and to the

Telecommunications.

5.2 Completion of Communication Tubing Handover Form

The contractor/ cable layer is to ensure and confirm that the tubes have been laid

according to the specifications and any additional requirements stipulated by the

MetroConnect Office/Project Engineer.

The "Communication Tubing Handover Form" detailed in

completed and returned to the appointed Clerk of Works/

after completion and at handover of the work.

.



8

that needs to be submitted to the MetroConnect Project Engineer. This nee

built’ documentation.

Documentation of Route

The entire tubing route, all manholes and all joint positions must be properly surveyed and

ordinates marked on the associated Drawing Plans and forwarded to the

for capture into the drawing office database, to facilitate future fault location.

built' drawing and the completed "Communication Tubing Handover

Form" form detailed in ANNEXURE B must be forwarded by the

Engineer/ Supervisor overseeing the installation and to the Deputy Head: Networks and

Completion of Communication Tubing Handover Form



MetroConnect Office/Project Engineer.

"Communication Tubing Handover Form" detailed in ANNEXURE

completed and returned to the appointed Clerk of Works/ Project leader of



Project Engineer. This needs to form part

and all joint positions must be properly surveyed and

and forwarded to the MetroConnect

for capture into the drawing office database, to facilitate future fault location.

built' drawing and the completed "Communication Tubing Handover

must be forwarded by the MetroConnect Project

Deputy Head: Networks and



ANNEXURE B shall be

Project leader of MetroConnect


ANNEXURE A: EXCAVATION CODE OF PRACTICE

1. Excavation, Backfilling and Reinstatement of Trenches within Road Reserve Areas

1.1 Excavation of Trenches

1.2 Suitable backfill material

1.3 Use of the “Dynamic Core Penetrometer” (D.C.P) and Test Requirements

1.4 Compacting the trench bottom

1.5 Initial backfill (Blinding)

1.5.1 Initial Test using D.C.P

1.6 Final Backfilling

1.6.1 Final Test using D.CP

1.7 Trenches in verge areas

1.8 Responsibility for maintenance of the trench and final reinstatement

1.9 Surplus material

1.10 Service Related structures



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ANNEXURE A: EXCAVATION CODE OF PRACTICE

Reinstatement of Trenches within Road Reserve Areas

Suitable backfill material

Use of the “Dynamic Core Penetrometer” (D.C.P) and Test Requirements

Compacting the trench bottom

Trenches in verge areas

Responsibility for maintenance of the trench and final reinstatement

Service Related structures


Reinstatement of Trenches within Road Reserve Areas

Use of the “Dynamic Core Penetrometer” (D.C.P) and Test Requirements


EXCAVATION, BACKFILLING AND REINSTATEMENT OF TRENCHES WITHIN ROAD

The procedures outlined are to be followed whenever trenches within road reserve areas are

reinstated, irrespective of the work being carried out by contract labour or by depart

personnel.

1.1 Excavation of trenches within road reserve

(a) Trench-less technology methods for road crossings shall be explored

Contractor prior to trenchin

permission must be sought

Maintenance Department

(b) Prior to any excavation taking place through hardened surfaces, the proposed

trench width shall be marked

Contractor.

(c) The minimum depth of any trench should be not less than

sidewalks and verges, and 1metre in roadways

requirement must first be authorised by the Roads & Stormwater Maintenance

Department by the

(d) In areas covered with special pavers through which trenching is required, the

existing paving shall be carefully removed and stored safely and securely for

re-use. This will minimize the need for obtaining new materials to match the

existing.

(e) In areas where the proposed trench falls within existing works that are being

undertaken by any other service provider, it shall be necessary for the

responsible official from eThekwini Municipality

interact with such servi

purposes.

(f) In areas where the proposed trench traverses through established flowerbeds,

gardens and grassed sections, it shall be necessary for the responsible official

from eThekwini Municipality

owners or relevant authority, prior to any work commencing.

(g) In developed and CBD areas, all property owners and businesses shall be

informed by the Contractor



10


RESERVE AREA


reinstated, irrespective of the work being carried out by contract labour or by depart

within road reserve

less technology methods for road crossings shall be explored

prior to trenching. This must be considered only as a last resort and

permission must be sought by the Contractor from the Roads & Stormwater

Maintenance Department before proceeding with any work.

Prior to any excavation taking place through hardened surfaces, the proposed

trench width shall be marked and saw cut by mechanical means by the

The minimum depth of any trench should be not less than

sidewalks and verges, and 1metre in roadways. Any deviation from this


by the Contractor.

In areas covered with special pavers through which trenching is required, the


use. This will minimize the need for obtaining new materials to match the

In areas where the proposed trench falls within existing works that are being


responsible official from eThekwini Municipality and the Contractor

interact with such service providers for co-ordination and reinstatement

In areas where the proposed trench traverses through established flowerbeds,


from eThekwini Municipality and the Contractor to liaise and interact with the

owners or relevant authority, prior to any work commencing.

In developed and CBD areas, all property owners and businesses shall be

by the Contractor of the proposed works prior to any work




reinstated, irrespective of the work being carried out by contract labour or by department

less technology methods for road crossings shall be explored by the

be considered only as a last resort and

from the Roads & Stormwater

Prior to any excavation taking place through hardened surfaces, the proposed

and saw cut by mechanical means by the

The minimum depth of any trench should be not less than 600 mm on

Any deviation from this


In areas covered with special pavers through which trenching is required, the


use. This will minimize the need for obtaining new materials to match the

In areas where the proposed trench falls within existing works that are being


and the Contractor to liaise and

ordination and reinstatement

In areas where the proposed trench traverses through established flowerbeds,


to liaise and interact with the

In developed and CBD areas, all property owners and businesses shall be

of the proposed works prior to any work


commencing.

(h) All road/lane closures must first be authorised by the Ethekwini Transport

Authority & the Durban Metro

Correct reinstatement by the Contractor

subsidence, but in the case

Footpaths etc.,) extra special attention must be paid

method of “compacted layered” backfill.

Strict adherence to the procedures given in this Section will ensure the sa

temporary reinstatement of the trench, leading to early permanent reinstatement by

the appropriate authority.

2 Suitable Backfill Material

(a) General backfill can be carried out by using the material excavated from the

trench, provided that:

(i) it is easily workable and compactable

(ii) it is free from organic material (roots, grass etc) rubbish, clay lumps and

aggregates larger than 50 mm stones in diameter.

(iii) the material is suitable, is not water saturated or too dry. Should the

material be too dry, it will be moistened prior to placing and compacting.

(b) In the immediate vicinity of the duct or cable both below and up to a height of

300mm above, stone

suitable due to their high thermal resistivity).

(c) If the site materials cannot meet these requirements suitable material must be

imported.

1.3 Use of “Dynamic Core Penetrometer” (D.C.P)

(a) To ensure that the required compaction of the trench has been achieved, tests

must be carried out

(b) The tests are carried out using a D.C.P which consists of a metal rod with a

cone-shaped end with an anvil onto whic

distance. (Drawing No.:1)

(c) The cone-shaped end of the rod is placed on the

is raised to the pre



11

All road/lane closures must first be authorised by the Ethekwini Transport

Authority & the Durban Metro Police by the Contractor.

by the Contractor of all trench work is necessary to prevent

subsidence, but in the case of trenches within hardened surfaces i.e. (Roadways,

Footpaths etc.,) extra special attention must be paid by the Contractor

method of “compacted layered” backfill.

Strict adherence to the procedures given in this Section will ensure the sa


the appropriate authority.

Suitable Backfill Material

General backfill can be carried out by using the material excavated from the

trench, provided that:

it is easily workable and compactable

it is free from organic material (roots, grass etc) rubbish, clay lumps and

aggregates larger than 50 mm stones in diameter.

the material is suitable, is not water saturated or too dry. Should the


In the immediate vicinity of the duct or cable both below and up to a height of

300mm above, stone-free material must be used. (Beach and river sand are not

o their high thermal resistivity).

If the site materials cannot meet these requirements suitable material must be

Use of “Dynamic Core Penetrometer” (D.C.P)

To ensure that the required compaction of the trench has been achieved, tests

must be carried out by the Contractor at various levels.

The tests are carried out using a D.C.P which consists of a metal rod with a

shaped end with an anvil onto which a fixed weight falls through a set

distance. (Drawing No.:1)

shaped end of the rod is placed on the area to be tested, the weight

is raised to the pre-set height and then dropped through the set distance onto


All road/lane closures must first be authorised by the Ethekwini Transport

of all trench work is necessary to prevent

of trenches within hardened surfaces i.e. (Roadways,

by the Contractor to the correct

Strict adherence to the procedures given in this Section will ensure the satisfactory


General backfill can be carried out by using the material excavated from the

it is free from organic material (roots, grass etc) rubbish, clay lumps and

the material is suitable, is not water saturated or too dry. Should the


In the immediate vicinity of the duct or cable both below and up to a height of

free material must be used. (Beach and river sand are not

If the site materials cannot meet these requirements suitable material must be

To ensure that the required compaction of the trench has been achieved, tests

The tests are carried out using a D.C.P which consists of a metal rod with a

h a fixed weight falls through a set

area to be tested, the weight

set height and then dropped through the set distance onto


the anvil. The force of the wei

(d) The number of blows required for the rod to penetrate to a distance of 100 mm

into the soil indicates the degree of compaction of the soil.

(e) The following test results are deemed to be acceptable, as m

requirements for compaction of trench backfill using D.C.P test method:

(i) in roadways

(ii) in footpaths, driveways and medians

(iii) in verges –

NOTE: The greater the number of blows required to penetrate the 100 mm the

better the soil compaction at the point of the test.

1.4 Compacting the Trench Bottom

(a) Compaction of suitable bedding material can be achieved by making two

passes over the whole trench bed, preferably using a Power Vibrating Rammer

or a 5 kg hand rammer as an alternative.

(b) The cable or duct can then be laid on the prepared bed.

1.5 Initial Blinding (Backfilling)

(a) After the duct(s) or cable(s) have been lai

placed around them, and the blinding material should be brought up to a level

not exceeding 150 mm.

(b) The material should be equally placed on both sides of the duct(s) or cable(s)

and each layer should then be we

complete passes over the length of the trench, using a 5 kg hand rammer.

NOTE: Do NOT use a vibrating rammer at this stage as the ducts(s) or cable(s)

could easily be damaged.

(c) Further layers, each

leveled and compacted by making five complete passes over the layer, still

using the hand rammer, until the duct or cable is covered by well compacted

blinding material to a height of 300 mm above the to



12

the anvil. The force of the weight will cause the rod to penetrate the soil.

The number of blows required for the rod to penetrate to a distance of 100 mm

into the soil indicates the degree of compaction of the soil.

The following test results are deemed to be acceptable, as m


in roadways – 5 blows per 100 mm penetration

in footpaths, driveways and medians – 3 blows per 100 mm penetration

– 2 blows per 100 mm penetration

: The greater the number of blows required to penetrate the 100 mm the

better the soil compaction at the point of the test.

Compacting the Trench Bottom

Compaction of suitable bedding material can be achieved by making two

over the whole trench bed, preferably using a Power Vibrating Rammer

or a 5 kg hand rammer as an alternative.

The cable or duct can then be laid on the prepared bed.

Initial Blinding (Backfilling)

After the duct(s) or cable(s) have been laid, suitable blinding material should be


not exceeding 150 mm.

The material should be equally placed on both sides of the duct(s) or cable(s)

and each layer should then be well and carefully compacted by making five


: Do NOT use a vibrating rammer at this stage as the ducts(s) or cable(s)

could easily be damaged.

Further layers, each not exceeding 150 mm thickness should now be spread,



blinding material to a height of 300 mm above the top of the duct(s) or cable(s).


ght will cause the rod to penetrate the soil.

The number of blows required for the rod to penetrate to a distance of 100 mm

The following test results are deemed to be acceptable, as minimum


3 blows per 100 mm penetration

: The greater the number of blows required to penetrate the 100 mm the

Compaction of suitable bedding material can be achieved by making two

over the whole trench bed, preferably using a Power Vibrating Rammer

d, suitable blinding material should be


The material should be equally placed on both sides of the duct(s) or cable(s)

ll and carefully compacted by making five


: Do NOT use a vibrating rammer at this stage as the ducts(s) or cable(s)

not exceeding 150 mm thickness should now be spread,



p of the duct(s) or cable(s).


NOTE: If ducts are laid in a cluster the blinding material must be brought up in

layers of 150 mm until a cover of 300 mm above the top duct is

obtained.

1.5.1 Initial Test using D.C.P

Tests carried out at this

would be considered satisfactory if at least two blows are required to penetrate

100mm.

NOTE: Tests must be carried out to one side of the duct or cable, and not

immediately above.

1.6 Final Backfilling and Temporary Capping

(a) From the level of 300 mm above the duct or cable to the top of the trench,

backfilling should proceed using suitable material (Section

thickness now being increased to 200 mm (before compaction).

(b) Each layer should be thoroughly compacted by making four complete passes

over the whole trench area with a Power Vibrating Rammer.

(c) Trenches located in roadways shall be finished off with capping of either cold

asphalt (50 mm thick) or 10 MPa strengt

and compacted to serve as a temporary riding surface.

1.7 Trenches in Verge Areas

(a) The final 75 mm -100 mm of trench backfill shall comprise of an organic/topsoil

type material, placed and leveled off flush with

No humps and bumps shall be permitted.

(b) All loose stones and other obstructions shall be removed to spoil.

(c) A suitable ground cover shall be established over the trench width.

1.8 Responsibility for Maintenance of the



13

: If ducts are laid in a cluster the blinding material must be brought up in


Tests carried out at this stage, i.e. 300 mm above duct(s) or cable(s), using D.C.P,


: Tests must be carried out to one side of the duct or cable, and not

immediately above.

Backfilling and Temporary Capping

From the level of 300 mm above the duct or cable to the top of the trench,

backfilling should proceed using suitable material (Section


Each layer should be thoroughly compacted by making four complete passes

over the whole trench area with a Power Vibrating Rammer.

Trenches located in roadways shall be finished off with capping of either cold

asphalt (50 mm thick) or 10 MPa strength concrete mix (100 mm thick), placed

and compacted to serve as a temporary riding surface.

Trenches in Verge Areas

100 mm of trench backfill shall comprise of an organic/topsoil

type material, placed and leveled off flush with the surrounding ground level.

No humps and bumps shall be permitted.

All loose stones and other obstructions shall be removed to spoil.

A suitable ground cover shall be established over the trench width.

Responsibility for Maintenance of the Trench and Final Reinstatement


: If ducts are laid in a cluster the blinding material must be brought up in


stage, i.e. 300 mm above duct(s) or cable(s), using D.C.P,


: Tests must be carried out to one side of the duct or cable, and not

From the level of 300 mm above the duct or cable to the top of the trench,

backfilling should proceed using suitable material (Section 1.2), with layer


Each layer should be thoroughly compacted by making four complete passes

Trenches located in roadways shall be finished off with capping of either cold

h concrete mix (100 mm thick), placed

100 mm of trench backfill shall comprise of an organic/topsoil

the surrounding ground level.

All loose stones and other obstructions shall be removed to spoil.

A suitable ground cover shall be established over the trench width.

Trench and Final Reinstatement


(a) On completion of the backfilling a requisition must be created by the

A service order will be then generated by Buying Department and forwarded to

the appropriate Local Authority, for permanent reinstatement of the trench

surface.

(b) As the responsibility for the maintenance of the trench in the period between

the initial backfilling and final reinstatement is that of the Department, failure

the Contractor to meet the compaction standards could lead to unnecessarily

long periods where a trench would be open to traffic. This could give rise to

dangerous conditions partic

attrition of heavily vehicular or pedestrian traffic.

(c) Trench Reinstatement by Contractors

undertaken by contractors, requirements of Part

Engineering Specifications shall be complied with.

NOTE: Where the excavation is carried out within the eThekwini Municipal

area, these additional clauses are applicable:

(i) The Roads

to test the trench using a D.C.P to check the compaction of differing

depths below ground level.

(ii) If the D.C.P indicates that the number of blows required to penetrate

100 mm into the soil at any zone in the trench profile is less than that

specified in Clause

Department will be notified to take the necessary remedial action. Only

after the trench has been tested and passed shall the final

reinstatement be carried out.

1.9 Surplus Material

All surplus material from trench excavation must be removed

designated spoil site. Should excavated material remain on site for backfill purposes,

it shall be adequately barricaded. Should excavated material end up in the

Municipality’s storm water infrastructure, it will be removed at the responsible party’s

expense.



14

On completion of the backfilling a requisition must be created by the



As the responsibility for the maintenance of the trench in the period between

backfilling and final reinstatement is that of the Department, failure

to meet the compaction standards could lead to unnecessarily


dangerous conditions particularly where the trench surface is exposed to the

attrition of heavily vehicular or pedestrian traffic.

Trench Reinstatement by Contractors – where trench reinstatements are

undertaken by contractors, requirements of Part S of the City of Durban Civil

Engineering Specifications shall be complied with.

: Where the excavation is carried out within the eThekwini Municipal

area, these additional clauses are applicable:

The Roads and Stormwater Maintenance Department reserves the right

e trench using a D.C.P to check the compaction of differing

depths below ground level.

If the D.C.P indicates that the number of blows required to penetrate


specified in Clause 1.3(e), the trench will not be reinstated and the



reinstatement be carried out.

All surplus material from trench excavation must be removed by the Contractor



y’s storm water infrastructure, it will be removed at the responsible party’s


On completion of the backfilling a requisition must be created by the Contractor.



As the responsibility for the maintenance of the trench in the period between

backfilling and final reinstatement is that of the Department, failure by

to meet the compaction standards could lead to unnecessarily


ularly where the trench surface is exposed to the

where trench reinstatements are

the City of Durban Civil

: Where the excavation is carried out within the eThekwini Municipal

Department reserves the right

e trench using a D.C.P to check the compaction of differing

If the D.C.P indicates that the number of blows required to penetrate


, the trench will not be reinstated and the



by the Contractor to a



y’s storm water infrastructure, it will be removed at the responsible party’s


1.10 Service Related Structures

(a) All structures such as manholes, chambers, earth retainers and connecting

junction boxes shall be constructed to a design approved

department.

(b) All exposed vertical surfaces above ground shall be either of a face brick or

concrete off shutter finish.

(c) Where earth retainers such as loffelstein blocks are used, it shall be erected to

the manufacturer’s guideline

(d) The finish level on manhole covers shall be true horizontal with the surrounding

levels modified to tie in.

ACKNOWLEDGEMENT

The contents of “A Practical Guide to Trench Backfilling and Compaction”, issued by the

Construction Division, City Engineer’s Department, have been used extensively in compiling

this Code of Practice.



15

Service Related Structures

All structures such as manholes, chambers, earth retainers and connecting

junction boxes shall be constructed to a design approved

All exposed vertical surfaces above ground shall be either of a face brick or

concrete off shutter finish.

Where earth retainers such as loffelstein blocks are used, it shall be erected to

the manufacturer’s guidelines and specifications.

The finish level on manhole covers shall be true horizontal with the surrounding

levels modified to tie in.


ivision, City Engineer’s Department, have been used extensively in compiling


All structures such as manholes, chambers, earth retainers and connecting

junction boxes shall be constructed to a design approved by the relevant

All exposed vertical surfaces above ground shall be either of a face brick or

Where earth retainers such as loffelstein blocks are used, it shall be erected to

The finish level on manhole covers shall be true horizontal with the surrounding


ivision, City Engineer’s Department, have been used extensively in compiling

DYNAMIC CONE PENETROMETER FOR TESTINGREINSTATEMENT OF TRENCHES WITHIN HARDENEDSURFACES



16

DYNAMIC CONE PENETROMETER FOR TESTING REINSTATEMENT OF TRENCHES WITHIN HARDENED

DRN : D.J.P.

CHK

APP :

NPA


Drawing 1

CP 2.051 Rev 0

ANNEXURE B: COMMUNICATION TUBING HANDOVER FORM

Preamble

This checklist is to completed and signed in sequence by the Contractor/ Consultant or installer,

once installation of the tubing has been completed, and handed to the appointed

Clerk of Works/ Supervisor.

LINK DESCRIPTION End A

Total Length of Route

Average length between manholes

Item

Description

a.

Manholes are positioned within 200m of each other.

b.

Manholes are positioned at bends greater than 30

o in the route to facilitate the pulling of

the fibre cable.

c. GPS coordinates of all Manholes and ducts to be supplied with as built documents

d.

New technology 3M code 14014" orange location devices/ antennae have been correctly installed and attached to the inside of the manhole cover with nylon string or suitable alternative.

e.

The tubing used has been approved by MetroConnect Engineer.

f.

All tubing into the manhole has been sealed with proper supplier’s end-

g.

An ‘as-built’ diagram of the entire tubing route, showing the surveyed position of all manholes, and the manholes which accommodate joints has been submitted to the MetroConnect Engineer.



17

: COMMUNICATION TUBING HANDOVER FORM


once installation of the tubing has been completed, and handed to the appointed

LINK DESCRIPTION: Contract No./ Order No.: .................................. End B

No. Of Manholes

Maximum length between manholes

Complies (Y/N)

Remarks

Manholes are positioned within 200m of each

Manholes are positioned at bends greater in the route to facilitate the pulling of

GPS coordinates of all Manholes and ducts to be supplied with as built documents

New technology 3M code 14014" orange location devices/ antennae have been correctly installed and attached to the inside of the manhole cover with nylon string or

The tubing used has been approved by

All tubing into the manhole has been sealed -caps.

built’ diagram of the entire tubing route, showing the surveyed position of all manholes, and the manholes which accommodate joints has been submitted to

Engineer.



once installation of the tubing has been completed, and handed to the appointed MetroConnect

: Contract No./ Order No.: ..................................

Completed By: Name

Company

Date

Annexure C



18


1. Introduction

This document, together with other referenced documents, defines the responsibilities and procedures to be adopted to ensure that the data and information produced as part of Project No................................. are reliable, fit for purpose and conand deliverables. It provides the details regarding the structure and specifications for all Geographic Information Systems (GIS) data supplied as part of the project deliverables.

2. Deliverables

Complete and verified Spatial Data for Fibre Installation projects shall be delivered via CD

DVD or any other method approved by the

R format, so that it cannot be modified. The deliverables must include the following:

a) Descriptive document

b) Geospatial (GIS) data with relevant attributes

c) Associated data table(s) or relational Microsoft Access database

d) Federal Geographic Data Committee (

a) Descriptive Document

A Microsoft Word document (and/or ASCII text file if specified) describing the CD/DVD contents shall accompany any submission and provide all necessary information for understanding the submittal. The document should include, but is not limited to, the fol

i. Project information including Project name, Project Number, Date of Project commencement and completion, Internal Project Manager (Service provider’s project leader and contact details, Other relevant team members include the GIS technical person.

ii. Contents of the CD/DVD and/or .zip file;iii. Description of the project, including all related deli

and drawings; iv. Version and date of the data and reports;v. Information on the use of data or data issue

appropriate) vi. Contact information for those responsible for creating the data and who have the

responsibility for maintaining the master version of the data vii. A short description of data themes or layers, reports, tables (limit

sentences for each)



19

GIS Data Specification

This document, together with other referenced documents, defines the responsibilities and procedures to be adopted to ensure that the data and information produced as part of Project No................................. are reliable, fit for purpose and consistent with documented objectives and deliverables. It provides the details regarding the structure and specifications for all Geographic Information Systems (GIS) data supplied as part of the project deliverables.

Spatial Data for Fibre Installation projects shall be delivered via CD

DVD or any other method approved by the MetroConnect project manager. CD/DVD should be in

R format, so that it cannot be modified. The deliverables must include the following:

Descriptive document

Geospatial (GIS) data with relevant attributes

Associated data table(s) or relational Microsoft Access database

Federal Geographic Data Committee (FGDC) compliant metadata

a) Descriptive Document

A Microsoft Word document (and/or ASCII text file if specified) describing the CD/DVD contents shall accompany any submission and provide all necessary information for understanding the submittal. The document should include, but is not limited to, the following:

Project information including Project name, Project Number, Date of Project commencement and completion, Internal Project Manager (Service provider’s project leader and contact details, Other relevant team members

he GIS technical person. Contents of the CD/DVD and/or .zip file; Description of the project, including all related deliverables, any project codes

Version and date of the data and reports; Information on the use of data or data issues to note;(if any exist or as

Contact information for those responsible for creating the data and who have the responsibility for maintaining the master version of the data A short description of data themes or layers, reports, tables (limitsentences for each)


This document, together with other referenced documents, defines the responsibilities and procedures to be adopted to ensure that the data and information produced as part of Project

sistent with documented objectives and deliverables. It provides the details regarding the structure and specifications for all Geographic Information Systems (GIS) data supplied as part of the project deliverables.

Spatial Data for Fibre Installation projects shall be delivered via CD-ROM or

project manager. CD/DVD should be in -

R format, so that it cannot be modified. The deliverables must include the following:-

Associated data table(s) or relational Microsoft Access database

FGDC) compliant metadata

A Microsoft Word document (and/or ASCII text file if specified) describing the CD/DVD contents shall accompany any submission and provide all necessary information for understanding the

Project information including Project name, Project Number, Date of Project commencement and completion, Internal Project Manager (MetroConnect Official), Service provider’s project leader and contact details, Other relevant team members

verables, any project codes

s to note;(if any exist or as

Contact information for those responsible for creating the data and who have the

A short description of data themes or layers, reports, tables (limited to one to two

viii. Linking fields

photographs)

b) Geospatial (GIS) Data

All Geospatial (GIS) data shall be supplied in include, at a minimum, the .SHP, .DBF, .SHX, and .PRJ files. The following projection parameters shall be used for all Geospatial data supplied:

Projection

Spheroid

False Easting

False Northing

Central Meridian

Scale Factor

Latitude of Origin

Units

In general, the standard projection for GIS layers is Universal Transverse Mercator with the parameters for the WGS84 ellipsoid.

c) Attribute Data

All related attribute data specified below shall be contained in the .dbf file. Dataset Cables Field Name TypeCableID Text LinkID Text CableType TextFibreType Text NoOfFibres Long Dataset Links Field Name TypeLinkID TextCPCodeFrom TextCPCodeTo TextLength Double Dataset Fibres Field Name TypeCableID Text



20

Linking fields to documents, a Microsoft Access database, and/or digital

photographs)

All Geospatial (GIS) data shall be supplied in shapefile format. The shapefile format should include, at a minimum, the .SHP, .DBF, .SHX, and .PRJ files. The following projection parameters shall be used for all Geospatial data supplied:

Universal Transverse Mercator

GRS 1980

False Easting 0

False Northing 0

Central Meridian 31.0

Scale Factor 1.0

Latitude of Origin 0 .0

Meters

In general, the standard projection for GIS layers is Universal Transverse Mercator with the parameters for the WGS84 ellipsoid.

All related attribute data specified below shall be contained in the .dbf file.

Type Size 14 12 Text 8 8 Long 8

Type Size Text 12 Text 6 Text 6 Double 19

Type Size 14


to documents, a Microsoft Access database, and/or digital

The shapefile format should include, at a minimum, the .SHP, .DBF, .SHX, and .PRJ files. The following projection

In general, the standard projection for GIS layers is Universal Transverse Mercator with the

All related attribute data specified below shall be contained in the .dbf file.

FibreNo Long FibreColor TextAssocCam TextUniqueNo Long

Dataset Ducts Field Name TypeUniqueNo Long Length Double Dataset Manholes Field Name TypeUniqueNo Long ImageName TextRemarks Text Dataset CCtvcablepointsField Name TypeCablePt Text GisRef TextType Text

All other additional attributes shall be delivered in a welldatabase format (.MDB file) using the latest version of Microsoft Access. Map features and database records shall share a common unique identifier or primary kfeature to the database record. d) Metadata

All data submitted shall include metadata that meets the minimum ### content standard for metadata. The metadata must be located in the same directory as the data, share the same naming prefix, and when appropriate, be attached to that data. The metadata should be delivered in extensible markup language with an .XML extension.

3. Conclusion

For any additional information regarding the specifications for GIS data, the contractor is free tconsult the the GIS Database Administration ManagerMr Dennis Bodeker on [email protected]



21

8 Text 8 Text 6 8

Type Size 8 Double 19

Type Size 8 Text 30 30

CCtvcablepoints Type Size 6 Text 10 Text 15

All other additional attributes shall be delivered in a well-structured database format (.MDB file) using the latest version of Microsoft Access. Map features and database records shall share a common unique identifier or primary key that relates the map feature to the database record.

All data submitted shall include metadata that meets the minimum ### content standard for metadata. The metadata must be located in the same directory as the data, share the same

prefix, and when appropriate, be attached to that data. The metadata should be delivered in extensible markup language with an .XML extension.

For any additional information regarding the specifications for GIS data, the contractor is free tconsult the the GIS Database Administration Manager

[email protected] or 031 311 4058


structured Microsoft Access database format (.MDB file) using the latest version of Microsoft Access. Map features and

ey that relates the map

All data submitted shall include metadata that meets the minimum ### content standard for metadata. The metadata must be located in the same directory as the data, share the same

prefix, and when appropriate, be attached to that data. The metadata should be

For any additional information regarding the specifications for GIS data, the contractor is free to

PART 2

INSTALLATION OF UNDERGROUND FIBRE OPTIC CABLE

6. INTRODUCTION

1.1 Scope

The purpose of this document is to detail the requirements for the pulling of underground

fibre optic cable into existing communication tubes, and the handing over of the completed

link.

1.2 Order of Description


• Definitions

• Testing of Cable prior to delivery.

• Pulling in of underground fibre optic cable

• Splicing

• Handover Requirements After Laying of Communication Tubes


7. DEFINITIONS

Communication Tubes: The underground tubing, as specified by the Engineer, through which

fibre optic cable is pulled for the establishment of communication links between two points.

Communication Manholes: The manholes, which are either designed for use within a pavement


communication tubes.



22

TECHNICAL SPECIFICATION FOR


INTO COMMUNICATION TUBING




Definitions

Testing of Cable prior to delivery.

Pulling in of underground fibre optic cable



The underground tubing, as specified by the Engineer, through which



a or for use within the roadway itself, which are situated along a route and connected by







The underground tubing, as specified by the Engineer, through which



a or for use within the roadway itself, which are situated along a route and connected by

Fibre Communication Panel (FCP):

terminated into a patch tray, and made available

equipment.

Manhole Ball Markers: A device which is attached to the inside of a manhole cover, which


beneath the surface of the ground.

Jointbox: An approved sealed enclosure used to secure and accommodate splices made

between two sections of fibre. In the case of an enclosure contained within a manhole, this will be

of high density polyethelene, (eg. Tank Techno

case of a jointbox to be positioned in the air, this is made of stainless steel (eg. Nokia Dome Joint)

8. PULLING OF UNDERGROUND FIBRE OPTIC CABLE

The pulling of cable proceeds after the installa

begin only once it has been confirmed that the communication tubing, including installation of

communication manholes and manhole ball markers, and documentation, has been completed

according to the standard set by eThekwini

3.1. Attenuation Tests prior to Pulling

Attenuation tests shall be carried out on every fibre of the cable while still on the drum to

confirm that the fibre drums are in good order after delivery and have been received b

contractor/ installer, prior to pulling.

Cables with an average attenuation at 1550nm above 0,25dB/km, or above 0,35dB/km at

1300nm, shall not be accepted. In addition, fibres with any points or steps of discontinuity

greater than 0,04dB shall

The form used to confirm the results of the attenuation test is provided in Annexure B.

3.2. Pulling of Sections

One underground fibre cable is to be used per tube. Fibre cable is to be pulled from

communication manhole to comm

Utmost care must be taken to ensure against over

in the process of pulling. It should be noted that the drawer wires/fibre supplied in the

communication tubing must not be used to pull through t



23

Fibre Communication Panel (FCP): The panel within a substation where the fibre optic cable is

terminated into a patch tray, and made available for optical connection to various optical



surface of the ground.

An approved sealed enclosure used to secure and accommodate splices made


of high density polyethelene, (eg. Tank Technologies TFO B30000/0B Fibre Optic Dome. In the


PULLING OF UNDERGROUND FIBRE OPTIC CABLE

The pulling of cable proceeds after the installation of the communication tubes. This process may



rd set by eThekwini Municipality.

Attenuation Tests prior to Pulling


confirm that the fibre drums are in good order after delivery and have been received b

contractor/ installer, prior to pulling.



greater than 0,04dB shall also be unacceptable.



communication manhole to communication manhole.

Utmost care must be taken to ensure against over-bending and over


communication tubing must not be used to pull through the actual fibre cable. Instead a


The panel within a substation where the fibre optic cable is

for optical connection to various optical



An approved sealed enclosure used to secure and accommodate splices made


logies TFO B30000/0B Fibre Optic Dome. In the


tion of the communication tubes. This process may




confirm that the fibre drums are in good order after delivery and have been received by the





bending and over-tensioning the cable


he actual fibre cable. Instead a

rope, or a more robust drawer wire which must be used to pull the actual cable. A pulling

lubricant may be used provided this has no detrimental effect on the cable or PVC pipes/

ducts.

The cables must be hand pulled, mapproval and under direct supervision of the Engineer. Every care must be taken to prevent damage to existing cables / services whilst installing new cables. The cable must be manhandled at every mdrag on existing services.

Cable lubrication may be necessary when installing in occupied ducts provided this has no

detrimental effect on the cable or PVC pipes/ ducts.

The cable should be pulled with a continuous rhythmic motion, sharp jerks must be avoided.

At least 5 metres of slack must be looped and retained within each communication

manhole.

At least 5 metres of slack should be looped at the base of the tower/ ga

Underground fibre optic cables need to join onto Optical Ground Wire (OPGW).

Self-expanding polystyrene type foam shall be injected into the communication tube

openings after the cable has been pulled to seal the ends of the tubes and to s

ingress of sand, rodents, etc.

3.3. Splicing

Splicing must only be carried out using equipment that has been approved by eThekwini

Municipality.

The identification of cores is according to an in

detailed in ANNEXURE A

Descriptions of the various splicing scenarios follow:

3.3.1 JOINTING AND SPLICING BETWEEN SECTIONS OF UNDERGROUND FIBRE

OPTIC CABLE

Fibres must be fusion spliced, and must have a



24



The cables must be hand pulled, mechanical pulling devices may only be used with explicit approval and under direct supervision of the Engineer.

Every care must be taken to prevent damage to existing cables / services whilst installing

The cable must be manhandled at every manhole along the way to prevent unnecessary drag on existing services.


detrimental effect on the cable or PVC pipes/ ducts.

The cable should be pulled with a continuous rhythmic motion, sharp jerks must be


At least 5 metres of slack should be looped at the base of the tower/ ga


expanding polystyrene type foam shall be injected into the communication tube

openings after the cable has been pulled to seal the ends of the tubes and to s

ingress of sand, rodents, etc.


The identification of cores is according to an international numbering convention as

detailed in ANNEXURE A (Part 2).

Descriptions of the various splicing scenarios follow:

JOINTING AND SPLICING BETWEEN SECTIONS OF UNDERGROUND FIBRE

Fibres must be fusion spliced, and must have a loss equal or less than 0.05dB.




echanical pulling devices may only be used with explicit

Every care must be taken to prevent damage to existing cables / services whilst installing

anhole along the way to prevent unnecessary


The cable should be pulled with a continuous rhythmic motion, sharp jerks must be


At least 5 metres of slack should be looped at the base of the tower/ gantry leg where


expanding polystyrene type foam shall be injected into the communication tube

openings after the cable has been pulled to seal the ends of the tubes and to stop the


ternational numbering convention as

JOINTING AND SPLICING BETWEEN SECTIONS OF UNDERGROUND FIBRE

loss equal or less than 0.05dB.

An approved fibre optic jointbox (eg. Tank’s TFOB30000/0B Fibre Optic Dome

Jointbox) must be used to contain the splices between two sections of underground

fibre optic cable. The jointbox must be accommodated within a com

manhole.

Jointing within the box must be carried out strictly according to the suppliers

specification. Joint boxes must be suitably sealed to prevent ingress of moisture,

and waterproof to a submerged depth of 2 metres.

At least 4 metres of

to allow staff to work on the joint above the ground within an enclosure or vehicle.

3.3.2 JOINTING AND SPLICING BETWEEN SECTIONS OF UNDERGOUND FIBRE

OPTIC CABLE AND OVERHEAD OPTICAL GROUND WIR

Joints between OPGW and Underground fibre optic cable sections must be housed

within a stainless steel jointbox approved by eThekwini Electricity.

The approved stainless steel jointbox must be mounted onto the top of a vertically

installed, 2 metres high, 50mm diameter stainless steel pipe buried 0,8 metres into

the ground. The pipe must be secured to the inside of the tower leg/ just off the

gantry leg or pylon using the approved stainless steel bracket supplied by

eThekwini Electricity.

DN50 Kabelflex tubing for the underground fibre cable must be inserted into the

base of the stainless steel pipe. Where the communication tubing is hard drawn

polyetherlene (HDPE), the DN50 Kabelflex and the HDPE tubing must be water

tight and taped with self

moisture and sand.

The top of the pipe must be sealed with self expanding polystyrene type foam,

(‘Sista'), to prevent ingress of water.

Jointing within the box must be carried out stri

specification. The correct cable clamping ferrules and half shells at the base of the

joint must be used. Jointboxes must be suitably sealed to prevent ingress of

moisture.

3.3.3 TERMINATION OF UNDERGROUND FIBRE OPTIC CABLE INTO FIBRE



25



fibre optic cable. The jointbox must be accommodated within a com



and waterproof to a submerged depth of 2 metres.

At least 4 metres of slack from each end should be coiled neatly into the manhole


JOINTING AND SPLICING BETWEEN SECTIONS OF UNDERGOUND FIBRE

OPTIC CABLE AND OVERHEAD OPTICAL GROUND WIRE (OPGW)




etres high, 50mm diameter stainless steel pipe buried 0,8 metres into



eThekwini Electricity.

Kabelflex tubing for the underground fibre cable must be inserted into the


polyetherlene (HDPE), the DN50 Kabelflex and the HDPE tubing must be water

tight and taped with self amalgamating rubber tape to prevent the ingress of

moisture and sand.


(‘Sista'), to prevent ingress of water.




TERMINATION OF UNDERGROUND FIBRE OPTIC CABLE INTO FIBRE




fibre optic cable. The jointbox must be accommodated within a communication



slack from each end should be coiled neatly into the manhole


JOINTING AND SPLICING BETWEEN SECTIONS OF UNDERGOUND FIBRE

E (OPGW)




etres high, 50mm diameter stainless steel pipe buried 0,8 metres into



Kabelflex tubing for the underground fibre cable must be inserted into the


polyetherlene (HDPE), the DN50 Kabelflex and the HDPE tubing must be water-

amalgamating rubber tape to prevent the ingress of


ctly according to the suppliers



TERMINATION OF UNDERGROUND FIBRE OPTIC CABLE INTO FIBRE

COMMUNICATION PANEL (FCP)

Both the underground fibre optic cable and the communication tubing in which the

cable runs must be properly terminated at the FCP

either end of the link.

The individually coloured fibre cores must be numbered according to international

numbering convention as detailed in the physical specifi

Municipality.

The optic fibres of the fibre transmission link must

provided in the patching tray/ drawer of the Fibre Communication Panel (FCP)

the termination point, using a core aligning machine.

splices must not be greater than 0,05dB.

The connectors a

source, or source substation, and the cores numbered. This label must be black

lettering on a white background.

Singlemode fibre ends will terminated using LX.5 APC connectors and

midcouplers.

4. HANDOVER REQUIREMENTS AND PROCEDURES

Handover occurs once the contractor/ installer of a link has completed the installation, when all

splices have been completed and when the contractor has fully tested and proved the fibre link,

from termination point to termination point. A termination point is a patch panel within the Fibre

Communication Panel (FCP) at a substation, unless otherwise specified by eThekwini Electricity.

4.1 Test Equipment

The test instrument used for the testing of fibre

Domain Reflectometer (OTDR), approved by eThekwini Electricity.

4.2 Red Light-source test

A red light source must be used to check for basic continuity and to ensure that there are

no cross-overs between termin



26

COMMUNICATION PANEL (FCP)


cable runs must be properly terminated at the FCP into designated locations

either end of the link.


numbering convention as detailed in the physical specifi

The optic fibres of the fibre transmission link must be fusion spliced to the pigtails

provided in the patching tray/ drawer of the Fibre Communication Panel (FCP)

the termination point, using a core aligning machine.. The attenuation across

splices must not be greater than 0,05dB.

The connectors at the front of the patch tray must be labelled with the name of the


lettering on a white background.


HANDOVER REQUIREMENTS AND PROCEDURES



on point to termination point. A termination point is a patch panel within the Fibre


The test instrument used for the testing of fibre transmission links must be an Optical Time

Domain Reflectometer (OTDR), approved by eThekwini Electricity.


overs between termination points.



into designated locations at


numbering convention as detailed in the physical specifications of eThekwini

be fusion spliced to the pigtails

provided in the patching tray/ drawer of the Fibre Communication Panel (FCP) at

. The attenuation across

t the front of the patch tray must be labelled with the name of the





on point to termination point. A termination point is a patch panel within the Fibre


transmission links must be an Optical Time


4.3 Attenuation Tests

Attenuation tests and tests shall be carried out from end to end on every fibre after pulling

and splicing.

At handover the average attenuation for the link, at 1300nm, shall not be greater than

0,4dB/km. At 1550nm the average attenuation shall not be greater than 0,25dB/km.

4.4 Optical Time Domain Reflectometer Tests

Each core must be tested using the approved OTDR from each side of the link, at 1550nm

and at 1310nm. The report shall also inc

events of the route.

Losses and reflectances shall proved to have been

4.4 Handover Documentation

The documentation required at handover and prior to payment are as follows:

• The completed “Completion Form for Underground Optical Fibre Link” as detailed

in ANNEXURE C

• Copies of the results of the OTDR tests on

• Details of the helix factor, the index of refraction, and the Rayleigh backscatter

factor of the fibre cable used.

• Complete GIS drawing of all new fibre installed

GIS specification).

Copies of this documentation shall be provided to

MetroConnect after completion and at handover of the work.



27



4dB/km. At 1550nm the average attenuation shall not be greater than 0,25dB/km.

4.4 Optical Time Domain Reflectometer Tests


and at 1310nm. The report shall also include labels describing the physical location of any

ances shall proved to have been minimized.

4.4 Handover Documentation


completed “Completion Form for Underground Optical Fibre Link” as detailed

in ANNEXURE C

Copies of the results of the OTDR tests on CD and on hard copy

Details of the helix factor, the index of refraction, and the Rayleigh backscatter

re cable used.

Complete GIS drawing of all new fibre installed (SEE Part 1: ANNEXURE C, for

Copies of this documentation shall be provided to Clerk of Works/ Project leader of





4dB/km. At 1550nm the average attenuation shall not be greater than 0,25dB/km.


lude labels describing the physical location of any


completed “Completion Form for Underground Optical Fibre Link” as detailed

and on hard copy

Details of the helix factor, the index of refraction, and the Rayleigh backscatter

(SEE Part 1: ANNEXURE C, for

Clerk of Works/ Project leader of

ANNEXURE A: FIBRE NUMBERING CONVENTION The standard colours of fibres in each bundle or tube shall be as follows:

core 1

core 2:

core 3:

core 4:

core 5:

core 6:

Example.1 12 fibre core systems Two conventions are prevalent:

• In 3 tube/ bundle systems:

• Red tube • White tube • Green tube

There are 4 fibres per tube/ bundle. The individual fibre cores in each tube/ bundle are in order Blue, Orange, Green and Brown ie. Cores 1,5 & 9 are Blue, cores 2,6 & 10 are Orange, etc.


• Red tube/ bundle • White tube/ bundle • White tube/ bundle • Green tube/ bundle

There are 3 fibres per tube/ bundle. The individual fibre cores in each tube/ bundare in order Blue, Orange and Green ie. Cores 1,4,7 & 10 are Blue, cores 2,5,8 & 11 are Orange, etc.

Example 2. 24 fibre core systems


• Red tube/ bundle • White tube/ bundle • White tube/



28

ANNEXURE A: FIBRE NUMBERING CONVENTION

The standard colours of fibres in each bundle or tube shall be as follows:

Blue core 7:

Orange core 8:

Green core 9:

Brown core 10:

Grey core 11:

White core 12:

12 fibre core systems

Two conventions are prevalent:

In 3 tube/ bundle systems:

Red tube - cores 1 to 4, White tube - cores 5 to 8 and Green tube - cores 9 to 12.

There are 4 fibres per tube/ bundle. The individual fibre cores in each tube/ bundle are in order Blue, Orange, Green and Brown ie. Cores 1,5 & 9 are Blue, cores 2,6 & 10 are Orange, etc.


Red tube/ bundle - cores 1 to 3 White tube/ bundle - cores 4 to 6 White tube/ bundle - cores 7 to 9 Green tube/ bundle - cores 10 to 12

There are 3 fibres per tube/ bundle. The individual fibre cores in each tube/ bundare in order Blue, Orange and Green ie. Cores 1,4,7 & 10 are Blue, cores 2,5,8 & 11 are Orange, etc.

24 fibre core systems


Red tube/ bundle - cores 1 to 6 White tube/ bundle - cores 7 to 12 White tube/ bundle - cores 13 to 18


Red

Black

Yellow

Purple

Turquoise

Pink

There are 4 fibres per tube/ bundle. The individual fibre cores in each tube/ bundle are in order Blue, Orange, Green and Brown ie. Cores 1,5 & 9 are Blue, cores 2,6

There are 3 fibres per tube/ bundle. The individual fibre cores in each tube/ bundle are in order Blue, Orange and Green ie. Cores 1,4,7 & 10 are Blue, cores 2,5,8 &

• Green tube/ bundle

There are 6 fibres per tube/ bundle. The individual fibre cores in each tube/ bundle are in order Blue, Orange, Green, Brown, Grey and White ie. Cores 1,7,13 & 19 are Blue, cores 2,8,14 & 20 a



29

Green tube/ bundle - cores 19 to 24

There are 6 fibres per tube/ bundle. The individual fibre cores in each tube/ bundle are in order Blue, Orange, Green, Brown, Grey and White ie. Cores 1,7,13 & 19 are Blue, cores 2,8,14 & 20 are Orange, etc.


There are 6 fibres per tube/ bundle. The individual fibre cores in each tube/ bundle are in order Blue, Orange, Green, Brown, Grey and White ie. Cores 1,7,13 & 19 are

ANNEXURE B: ATTENUATION TESTING ON FIBRE OPTIC CABLE/ OPGW PRIOR TO

PULLING OR STRINGING

Preamble

This form is to completed and signed by the Contractor/ Consultant or installer, prior to the

pulling of fibre optic cable

completed it must be handed to the appointed

MetroConnect.

LINK DESCRIPTION: Contract No./ Order No.: .................................................. End A

Drum Manufacturer

No. Of fibres

Test Results: average dB/km Core

Average dB/km

1

2

3

4

5.

6.

7.

8.

9.

10.

11.

12.



30



pulling of fibre optic cable or the stringing of Optical Ground Wire (OPGW). Once

completed it must be handed to the appointed Clerk of Works/ Project leader of

: Contract No./ Order No.: .................................................. End B

Drum No.

Make & Model of Equipment used:

Test Results: average dB/km

Average dB/km Core

Average dB/km

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

24.




or the stringing of Optical Ground Wire (OPGW). Once

Clerk of Works/ Project leader of

: Contract No./ Order No.: ..................................................

Average dB/km

I hereby confirm that the fibre optic cable/ OPGW has been received by me in good working order.

Completed By: Name

Company

Date



31

hereby confirm that the fibre optic cable/ OPGW has been received by me in good working order.


hereby confirm that the fibre optic cable/ OPGW has been received by me in good working order.

ANNEXURE C: COMPLETION FORM FOR UNDERGROUND OPTICAL FIBRE LINK

Preamble

This form is to completed and signed by the Contractor/ Consultant or installer, once installation of

the underground fibre optic cable is completed and fully tested. It is to be and handed to the

appointed Clerk of Works/ Project leader of

LINK DESCRIPTION: Contract No./ Order No.: .....................................................

End A

Length of route

No. Of Joint Boxes

Make & Model of Splicer used

Item

Description

1.

Pulling of cable between, and splicing at communication manholes:

a.

Precautions were taken to ensure that there was no damage to the cable during the pulling process and that there was no overor excessive strain placed on it.

b.

5m of cable slack has been retained in each manhole.

c.

The ends of the tubes at the manholes have been filled with self expanding polystyrene type foam.

d.

Approved joint boxes have been used, and been fitted according to the manufacturer’s instruction.

e.

5m of cable slack has been retained on each side of a joint box at the manhole.

g.

The standard fibre numbering system applied during splicing.

h.

‘Sista’ expanding foam was of stainless steel tube, beneath Nokia Dome Joint.

2.

Jointing of fibre cables within the FCP in the Computer Room NOTE: FCP will have been equipped by DME with a splicing tray, fitted with midcouplers, compression glands and for each fibre

a.

NEX tubing is secured to the gland plate at the base of the FCP with a 50mm male adaptor, (provided by DME).



32




Clerk of Works/ Project leader of MetroConnect.

: Contract No./ Order No.: ..................................................... End B

No. Of Tubes

Make & model of OTDR used

Complied(Y/N)

Remarks

Pulling of cable between, and splicing at communication manholes:

Precautions were taken to ensure that there was no damage to the cable during the pulling process and that there was no over-bending

excessive strain placed on it.

5m of cable slack has been retained in each

The ends of the tubes at the manholes have been filled with self expanding polystyrene

Approved joint boxes have been used, and been fitted according to the manufacturer’s

5m of cable slack has been retained on each side of a joint box at the manhole.

The standard fibre numbering system applied

‘Sista’ expanding foam was used to seal top of stainless steel tube, beneath Nokia Dome

Jointing of fibre cables within the FCP in

NOTE: FCP will have been equipped by DME with a splicing tray, fitted with mid-couplers, compression glands and pigtails

NEX tubing is secured to the gland plate at the base of the FCP with a 50mm male adaptor, (provided by DME).





: Contract No./ Order No.: .....................................................

Remarks

Item

Description

b.

All fibres spliced onto pigtails, and fibres on splicing tray neatly made off

c.

Standard Fibre Numbering system adopted

f.

The loss for all splices is below 0,05dB.

g.

The connectors at the front of the patch tray at the terminations have been labelled, and checked for crossovers.

h.

The average dB/km for all 0,4dB/km at 1310nm and 0,25dB/km at 1550nm.

i.

All losses and reflectances on the link have been minimised.

j.

Helix Factor: Index of refraction: Rayleigh backscatter factor:

j.

All the events on the OTDR traces have been labeled/ position described.

k.

The results of the OTDR tests, from both ends, and at both 1550nm and at 1310nm, have been provided on CD

Completed By: Name

Company

Date



33

Complied(Y/N)

Remarks

All fibres spliced onto pigtails, and fibres on splicing tray neatly made off

Standard Fibre Numbering system adopted

The loss for all splices is below 0,05dB.

The connectors at the front of the patch tray at the terminations have been labelled, and

The average dB/km for all cores is less than 0,4dB/km at 1310nm and 0,25dB/km at

All losses and reflectances on the link have

Rayleigh backscatter factor:

.................................................................................................................................

All the events on the OTDR traces have been / position described.

The results of the OTDR tests, from both ends, and at both 1550nm and at 1310nm,

CD and on hard copy.


Remarks

............................................

............................................

.........................................

Adopted at the End of December 2008:

Signature:

1. Information Technology:________________________________________________

2. ETA _______________________________________________________________

3. Roads____________________________________________________________

4. Water______________________________________________________________

5. Electricity___________________________________________________________

6. City Police__________________________________________________________



34

Adopted at the End of December 2008:

________________________________________________

ETA _______________________________________________________________

____________________________________________________________

Water______________________________________________________________

Electricity___________________________________________________________

City Police__________________________________________________________


________________________________________________

ETA _______________________________________________________________

______________________________________________________________

Water______________________________________________________________

Electricity___________________________________________________________

City Police__________________________________________________________

Customer File Index

A hardcopy customer file must be completed for each purchase order issued. Below is the index list of all information that must be supplied.expedite job completion and payments.

1. Original RFQ document and ma2. Bill of quantities and official quotation.3. Site layout plan or m4. All email correspondence from MetroConnect Planning or MetroConnect Procurement.5. Official purchase order6. Additional maps that 7. Additional work instruction8. Work instruction/variation 9. Quotes for any Variation work 10. Invoices for each purchase 11. Evidentiary photos for any work/cost varia12. Progress reports on additional work13. Contact people on site that was 14. Contact people in charge of customer building15. Contact numbers and names of persons/companies that will do the job16. Progress reports from 17. Splice tray labeling d18. Photographs of cabinet, patch panel and splice tray.19. OTDR test results. 20. GPS co-ordinates for all service points. (21. Copy of Wayleaves from all service providers.22. All email correspondence with Ethekwini Roads Department. 23. Customer Sign Off C



35

customer file must be completed for each purchase order issued. Below is the index list of all information that must be supplied. Please ensure that all information is supplied to expedite job completion and payments.

Original RFQ document and map. Bill of quantities and official quotation.

plan or map of completed route (as built route). All email correspondence from MetroConnect Planning or MetroConnect Procurement.

rder number from Ethekwini. aps that could relate to the area of the job. ork instructions.

ariation order for additional work. ariation work – NOT part of initial quote urchase order.

Evidentiary photos for any work/cost variance. Progress reports on additional work.

on site that was involved in the job. Contact people in charge of customer buildings or sites. Contact numbers and names of persons/companies that will do the jobProgress reports from site inspections.

diagram. Photographs of cabinet, patch panel and splice tray.

ordinates for all service points. (New Manholes, Strategic Junction Points

s from all service providers. l email correspondence with Ethekwini Roads Department.

Certificate.


customer file must be completed for each purchase order issued. Below is the index Please ensure that all information is supplied to

All email correspondence from MetroConnect Planning or MetroConnect Procurement.

Contact numbers and names of persons/companies that will do the job if required.

New Manholes, Strategic Junction Points, etc)

CONDITIONS PERTAINING TO APPROVAL OF WAYLEAVES

1. No obstructions to sidewalks and roadways are permitted. In this regard, Pedestrians and

motorists should be accommodated for at all times.

2. The proving of underground services and the relocation thereof, if necessary, will be their

responsibility of your organisation.

3. All re-instatements, including backfilling, compaction and testing of excavations to

departmental specifications.

The Road and Stormwater Maintenance Department will carry out the final road re

instatement and requisitions for such work must be forwarded by your organization

timeously.

4. Temporary re-instatements to be maintained by

instatements. Claims arising during the construction of the proposed works and prior to any

final reinstatements being carried out by this department will be for your organization to

resolve.

5. Finish cover levels of manholes to suit the surrounding surface levels.

6. All excavations and allied works must be suitably barricaded and maintained until final

completion or works.

7. Saw cutting of the existing surfaced layers will be required, prior to any excavations taking

place.

8. Mixing of concrete or mortar on the road or sidewalk surface is not permitted.

9. Construction materials are not to be left haphazardly on the road, sidewalk or verge at any

time during construction.

10. All rubble and other spoil generated by the prop

as the works in particular vicinity is complete.

11. Contractors carrying out work on your behalf to be adequately supervised at all times. Due

cognisance must be taken of the gazetted Occupational Health and Safety

Construction Regulations: 2003

12. The Unit reserves the right to halt progress at any time during the project should the above

requirements not be satisfactorily adhered to.

13. Adequate notice of intention to commence work must be given to prior t

commencement of the work. All work within the Council road reserve will be monitored by



36


No obstructions to sidewalks and roadways are permitted. In this regard, Pedestrians and

should be accommodated for at all times.

The proving of underground services and the relocation thereof, if necessary, will be their

responsibility of your organisation.

instatements, including backfilling, compaction and testing of excavations to

departmental specifications.

The Road and Stormwater Maintenance Department will carry out the final road re


instatements to be maintained by the excavator until completion of final re



of manholes to suit the surrounding surface levels.

All excavations and allied works must be suitably barricaded and maintained until final

Saw cutting of the existing surfaced layers will be required, prior to any excavations taking

Mixing of concrete or mortar on the road or sidewalk surface is not permitted.

Construction materials are not to be left haphazardly on the road, sidewalk or verge at any

time during construction.

All rubble and other spoil generated by the proposed works to be removed off site as soon

as the works in particular vicinity is complete.

Contractors carrying out work on your behalf to be adequately supervised at all times. Due

cognisance must be taken of the gazetted Occupational Health and Safety

Construction Regulations: 2003

The Unit reserves the right to halt progress at any time during the project should the above

requirements not be satisfactorily adhered to.

Adequate notice of intention to commence work must be given to prior t




No obstructions to sidewalks and roadways are permitted. In this regard, Pedestrians and

The proving of underground services and the relocation thereof, if necessary, will be their

instatements, including backfilling, compaction and testing of excavations to be to

The Road and Stormwater Maintenance Department will carry out the final road re-


the excavator until completion of final re-



of manholes to suit the surrounding surface levels.

All excavations and allied works must be suitably barricaded and maintained until final

Saw cutting of the existing surfaced layers will be required, prior to any excavations taking

Mixing of concrete or mortar on the road or sidewalk surface is not permitted.

Construction materials are not to be left haphazardly on the road, sidewalk or verge at any

osed works to be removed off site as soon

Contractors carrying out work on your behalf to be adequately supervised at all times. Due

cognisance must be taken of the gazetted Occupational Health and Safety Act 85/1993:

The Unit reserves the right to halt progress at any time during the project should the above

Adequate notice of intention to commence work must be given to prior to the actual


this unit.

14. The Engineering Unit is to be included in any progress meetings held by yourselves.

15. This unit reserves the right to have it’s Materials Testin

testing of any or all road layer densities. Control testing will be y our responsibility with test

results being made available to this Unit on request.

16. With regard to road markings that will be affected due to the propos

organisation is to make arrangements with the Ethekwini Transport Authority’s Traffic

Operations Branch on telephone 031 311 7093 or 031 311 7334 prior to commencement of

the works.

17. A joint final inspection of the completed works forms part



37

The Engineering Unit is to be included in any progress meetings held by yourselves.

This unit reserves the right to have it’s Materials Testing Laboratory carry out acceptance


results being made available to this Unit on request.

With regard to road markings that will be affected due to the proposed works, your



A joint final inspection of the completed works forms part of this agreement.


The Engineering Unit is to be included in any progress meetings held by yourselves.

g Laboratory carry out acceptance


ed works, your



of this agreement.

ENGINEERING UNIT ROADS AND STORMWATER MAINTENANCE DEPARTMENT EXCAVATION AND REINSTATEMENT OF TRENCHES IN ROADS AND SIDEWALKS IN THE EMA AREA PROJECT SPECIFICATIONS AND REQUIREMENTS EXCAVATION OF TRENCHES

• Trenches that are excavated for service provisions and upgrading purposes on roads or

sidewalks will be done so in compliance to Departmental requirements pertaining to

accommodating traffic. Both vehicular and pedestrian, thereby ensuring their s

other Health and Safety requirements to both the public and the contractors own personnel

needs to be complied with.

• The Roads Department will be kept informed in advance of all proposed excavations in

roads and sidewalks. The option of trenchl

all avenues to auger bore have been exhausted, will trenching be permitted and in writing

by the Roads Department.

• Where the proposed excavation falls within existing works being undertaken by any

department or service provider, the Excavation Department/Contractor will liaise

accordingly for ease of implementation and re

• Spoil emanating from the trench excavation will be removed to a designated spoil site soon

after the trench has been e

be adequately barricaded. Where the spoil is dumped on private properties by agreement,

the Municipality will be indemnified in writing, against any future claims or queries.

• Where the trench traverses through gardens, flower beds and neat grassed areas, the

contractor needs to liaise with the relevant authority or owner prior to the work

commencing.

• In developed and CBD areas all property owners and businesses will be informed of the

intended work prior to same commencing.

BACKFILLING OF TRENCHES

• All trenches will be backfilled with suitable material that is easily workable and

compactable, in layers not exceeding 200mm (loose) thickness. The backfill material

will be free of grass, roots,

the backfill material is too dry, it will be moistened prior to placing and compacting.



38

ROADS AND STORMWATER MAINTENANCE DEPARTMENT EXCAVATION AND REINSTATEMENT OF TRENCHES IN ROADS AND SIDEWALKS IN THE

PROJECT SPECIFICATIONS AND REQUIREMENTS

TRENCHES

Trenches that are excavated for service provisions and upgrading purposes on roads or


accommodating traffic. Both vehicular and pedestrian, thereby ensuring their s


needs to be complied with.

The Roads Department will be kept informed in advance of all proposed excavations in

roads and sidewalks. The option of trenchless technology will be explored and only when


by the Roads Department.

Where the proposed excavation falls within existing works being undertaken by any

r service provider, the Excavation Department/Contractor will liaise

accordingly for ease of implementation and re-instatement purposes.

Spoil emanating from the trench excavation will be removed to a designated spoil site soon

after the trench has been excavated. Should such spoil remain on site for reuse, same will



traverses through gardens, flower beds and neat grassed areas, the


In developed and CBD areas all property owners and businesses will be informed of the

ed work prior to same commencing.

BACKFILLING OF TRENCHES

All trenches will be backfilled with suitable material that is easily workable and


will be free of grass, roots, rubbish, clay and aggregates greater than 50mm. Where



EXCAVATION AND REINSTATEMENT OF TRENCHES IN ROADS AND SIDEWALKS IN THE

Trenches that are excavated for service provisions and upgrading purposes on roads or


accommodating traffic. Both vehicular and pedestrian, thereby ensuring their safety. All


The Roads Department will be kept informed in advance of all proposed excavations in

ess technology will be explored and only when


Where the proposed excavation falls within existing works being undertaken by any

r service provider, the Excavation Department/Contractor will liaise

instatement purposes.

Spoil emanating from the trench excavation will be removed to a designated spoil site soon

xcavated. Should such spoil remain on site for reuse, same will



traverses through gardens, flower beds and neat grassed areas, the


In developed and CBD areas all property owners and businesses will be informed of the

All trenches will be backfilled with suitable material that is easily workable and


rubbish, clay and aggregates greater than 50mm. Where


DCP TESTING OF BACKFILLING

• Each layer of 150mm thick compacted backfill shall be tested to the following

requirements using the standard 5kg DCP test method:

- Road Trenches: Minimum of 5 blows per 100mm penetration

-Sidewalk, driveways and median trenches: minimum of 3 blows per 100 mm

penetration

-Verge trenches: minimum of 2 blows per 100mm penetration

• Trenches in the verge (unhardened areas) may be backfilled and compacted in 300mm

loose layers.

• All test results will be recorded and handed to the Engineer on a weekly basis.

• The Engineer reserves the right to carry out his/her own DCP testing and should

minimum requirements not be achieved on completed work, the contractor will be

required to remove and redo the operation to ensure compliance.

ROAD CATEGORIES/ASPHALT TRENCH REINSTATEMENT

• The city’s network comprises of the following road categories

corresponding upper layer constructions:

-CATEGORY A: 150mm G2 Crusher run and 240mm mix D Asphalt

-CATEGORY B: 150mm G2 Crusher run and 160mm mix D Asphalt

-CATEGORY C: 150mm G2 Crusher run and 80mm mix D Asphalt

-CATEGORY D: 150mm G2 Crusher

-CATEGORY E: 100mm G2 Crusher run and 25mm mix A Asphalt (driveway &

sidewalks)

The onus is on the excavator department/contractor to ascertain from the Roads

Department as to what category a certain road falls under.

• Asphalt will be compacted in layers not exceeding 800mm thick (after compaction)

• G2 Crusher run will be adequately moistened and mixed prior to placing and

compacting.

• The DCP test requirements on the G2 crushed stone layer is a minimum of 15

blows per 100mm pene

• All loose material will be swept off prior to the placing and compacting of Asphalt.



39

DCP TESTING OF BACKFILLING

Each layer of 150mm thick compacted backfill shall be tested to the following

requirements using the standard 5kg DCP test method:

Road Trenches: Minimum of 5 blows per 100mm penetration

Sidewalk, driveways and median trenches: minimum of 3 blows per 100 mm

Verge trenches: minimum of 2 blows per 100mm penetration

renches in the verge (unhardened areas) may be backfilled and compacted in 300mm

All test results will be recorded and handed to the Engineer on a weekly basis.

The Engineer reserves the right to carry out his/her own DCP testing and should



ROAD CATEGORIES/ASPHALT TRENCH REINSTATEMENT

The city’s network comprises of the following road categories

corresponding upper layer constructions:

CATEGORY A: 150mm G2 Crusher run and 240mm mix D Asphalt

CATEGORY B: 150mm G2 Crusher run and 160mm mix D Asphalt

CATEGORY C: 150mm G2 Crusher run and 80mm mix D Asphalt

CATEGORY D: 150mm G2 Crusher run and 50mm mix D Asphalt

CATEGORY E: 100mm G2 Crusher run and 25mm mix A Asphalt (driveway &


Department as to what category a certain road falls under.

ill be compacted in layers not exceeding 800mm thick (after compaction)

G2 Crusher run will be adequately moistened and mixed prior to placing and

The DCP test requirements on the G2 crushed stone layer is a minimum of 15

blows per 100mm penetration.

All loose material will be swept off prior to the placing and compacting of Asphalt.


Each layer of 150mm thick compacted backfill shall be tested to the following

Sidewalk, driveways and median trenches: minimum of 3 blows per 100 mm

renches in the verge (unhardened areas) may be backfilled and compacted in 300mm

All test results will be recorded and handed to the Engineer on a weekly basis.

The Engineer reserves the right to carry out his/her own DCP testing and should the



The city’s network comprises of the following road categories with the

CATEGORY A: 150mm G2 Crusher run and 240mm mix D Asphalt

CATEGORY B: 150mm G2 Crusher run and 160mm mix D Asphalt

CATEGORY C: 150mm G2 Crusher run and 80mm mix D Asphalt

run and 50mm mix D Asphalt

CATEGORY E: 100mm G2 Crusher run and 25mm mix A Asphalt (driveway &


ill be compacted in layers not exceeding 800mm thick (after compaction)

G2 Crusher run will be adequately moistened and mixed prior to placing and

The DCP test requirements on the G2 crushed stone layer is a minimum of 15

All loose material will be swept off prior to the placing and compacting of Asphalt.

• All liquid emulsion will be brush applied at 0.3 l/m2 to the vertical sides of the

existing trench.

• The finish levels will be true to the surrounding existing

CONCRETE AND BRICK PAVED AREAS

• The CBD sidewalks are generally brick or concrete paved and therefore the

reinstatement of trenches in these areas will be undertaken to match existing.

• Areas covered in special type pavers where trenc

pavers will be carefully removed and stored for reuse as the availability of new

materials for reinstating these areas are minimum. The Contractor will take full

responsibility for removing, storing and safekeeping of the

reuse.

• The following mix proportions are to be used when undertaking trench

reinstatement work.

-Bedding for brick paved and concrete slabbed areas: Minimum 500mm thick riversand mixed with cement at a ratio of 10:1 i.e 5 wheelbpocket of cement. -Joints to precast slabs will comprise of a 3:1 plaster sand/cement mix i.e 1 ½ wheelbarrows o plaster sand to 1 pocket of cement. -Cast insitu concrete slabs will comprise of a full depth of 100mm, 75mm of whis concrete and 25mm Umgeni/cement topping. Both layers are required to be constructed simultaneously. -Should ready blend be used to mix the 75mm thick concrete, a mix ratio of 6:1 will be used i.e. 3 wheelbarrows of ready blend to 1 pocket of topping, a mix proportion of 2:1 will be used i.e. 1 wheelbarrow of riverpocket of cement. Cast insitu slabs in non CBD areas may be constructed with a full depth of 100mm concrete using a 6:1 ready blend/cement mix. Either option requires that the concrete be wood floated and joints formed to match existing. Should stone, sand and cement be used as separate mix materials for mixing concrete, then a mix proportion of 3:3:1 will be used i.e 3 wheelbarrows of stone, 3 wheelbarrows of river



40

All liquid emulsion will be brush applied at 0.3 l/m2 to the vertical sides of the

The finish levels will be true to the surrounding existing road/sidewalk levels.

CONCRETE AND BRICK PAVED AREAS

The CBD sidewalks are generally brick or concrete paved and therefore the


Areas covered in special type pavers where trench excavation is to take place, the



responsibility for removing, storing and safekeeping of the removed materials for

The following mix proportions are to be used when undertaking trench

reinstatement work.

Bedding for brick paved and concrete slabbed areas: Minimum 500mm thick riversand mixed with cement at a ratio of 10:1 i.e 5 wheelbarrows of river sand to 1 pocket of cement.

Joints to precast slabs will comprise of a 3:1 plaster sand/cement mix i.e 1 ½ wheelbarrows o plaster sand to 1 pocket of cement.

Cast insitu concrete slabs will comprise of a full depth of 100mm, 75mm of whis concrete and 25mm Umgeni/cement topping. Both layers are required to be constructed simultaneously.

Should ready blend be used to mix the 75mm thick concrete, a mix ratio of 6:1 will be used i.e. 3 wheelbarrows of ready blend to 1 pocket of cement. For the 25mm topping, a mix proportion of 2:1 will be used i.e. 1 wheelbarrow of riverpocket of cement.

Cast insitu slabs in non CBD areas may be constructed with a full depth of 100mm concrete using a 6:1 ready blend/cement mix.

er option requires that the concrete be wood floated and joints formed to match

Should stone, sand and cement be used as separate mix materials for mixing concrete, then a mix proportion of 3:3:1 will be used i.e 3 wheelbarrows of stone, 3

barrows of river-sand and 2 pockets of cement.


All liquid emulsion will be brush applied at 0.3 l/m2 to the vertical sides of the

road/sidewalk levels.

The CBD sidewalks are generally brick or concrete paved and therefore the


h excavation is to take place, the



removed materials for

The following mix proportions are to be used when undertaking trench

Bedding for brick paved and concrete slabbed areas: Minimum 500mm thick river-arrows of river sand to 1

Joints to precast slabs will comprise of a 3:1 plaster sand/cement mix i.e 1 ½

Cast insitu concrete slabs will comprise of a full depth of 100mm, 75mm of which is concrete and 25mm Umgeni/cement topping. Both layers are required to be

Should ready blend be used to mix the 75mm thick concrete, a mix ratio of 6:1 will cement. For the 25mm

topping, a mix proportion of 2:1 will be used i.e. 1 wheelbarrow of river-sand to 1

Cast insitu slabs in non CBD areas may be constructed with a full depth of 100mm

er option requires that the concrete be wood floated and joints formed to match

Should stone, sand and cement be used as separate mix materials for mixing concrete, then a mix proportion of 3:3:1 will be used i.e 3 wheelbarrows of stone, 3

TRENCHES IN VERGE AREAS

• Where trenches are excavated and required to be reinstated in unhardened or grassed

areas, the following will apply.

• The final 75-100mm of backfill will comprise of organic topsoi

off flush

with the surrounding ground level. No humps or bumps will be permitted.

• All loose stones and other obstructions will be moved to spoil.

• The establishment of suitable ground cover over the trench width will be the

of the Excavator Department/Contractor.

SERVICE RELATED STRUCTURES

• Where minor structures such as chambers, manholes, earth retainers and connecting

junction boxes are to be erected, the following requirements shall apply.

• All structures are to be constructed in accordance with an approved design detail, provided

by the Excavator Department and passed through the Roads Department.

• All exposed vertical surfaces above ground will either be of face brick (satin red) or

reinforced concrete with an off shutter class 1 finish.

• Where earth retainers such as loffestein blocks are used, same shall be erected to the

manufactures guidelines, specifications and recommendations.

• Generally manhole covers will comprise of a reinforced concrete slab whic

standard access cover and lid. The finish on the concrete covers will be to a wood floated

finish. In asphalt, brick and other special paved areas, the finish on the cover slabs will be

such that it matches the existing surface finish. The

horizontal with the surrounding surface modified to suit, so as to avoid sudden change in

levels.

• The mixing of mortar and concrete on existing paved surfaces will be avoided and where

same is unavoidable, the affe

completion of the day’s operations.

SPECIAL REQUIREMENTS

• The main contractor/project manager is required to ensure that effective and timeous

communication and interaction takes place between the civils

instating contractor

• Where excavated trench material has ended up in the stormwater inlet and catchpit, the

contractor will be required to remove, ensuring that the incoming and outgoing pipes are



41

TRENCHES IN VERGE AREAS

Where trenches are excavated and required to be reinstated in unhardened or grassed

areas, the following will apply.

100mm of backfill will comprise of organic topsoil material, placed and leveled


All loose stones and other obstructions will be moved to spoil.

The establishment of suitable ground cover over the trench width will be the

of the Excavator Department/Contractor.

SERVICE RELATED STRUCTURES

Where minor structures such as chambers, manholes, earth retainers and connecting


re to be constructed in accordance with an approved design detail, provided


All exposed vertical surfaces above ground will either be of face brick (satin red) or

h an off shutter class 1 finish.

Where earth retainers such as loffestein blocks are used, same shall be erected to the

manufactures guidelines, specifications and recommendations.

Generally manhole covers will comprise of a reinforced concrete slab whic



such that it matches the existing surface finish. The finish level on manhole covers shall be


The mixing of mortar and concrete on existing paved surfaces will be avoided and where

same is unavoidable, the affected area will be properly cleaned and washed off on

completion of the day’s operations.

The main contractor/project manager is required to ensure that effective and timeous

communication and interaction takes place between the civils contractor and the re

Where excavated trench material has ended up in the stormwater inlet and catchpit, the



Where trenches are excavated and required to be reinstated in unhardened or grassed

l material, placed and leveled


The establishment of suitable ground cover over the trench width will be the responsibility

Where minor structures such as chambers, manholes, earth retainers and connecting


re to be constructed in accordance with an approved design detail, provided


All exposed vertical surfaces above ground will either be of face brick (satin red) or

Where earth retainers such as loffestein blocks are used, same shall be erected to the

Generally manhole covers will comprise of a reinforced concrete slab which incorporates a



finish level on manhole covers shall be


The mixing of mortar and concrete on existing paved surfaces will be avoided and where

cted area will be properly cleaned and washed off on

The main contractor/project manager is required to ensure that effective and timeous

contractor and the re-

Where excavated trench material has ended up in the stormwater inlet and catchpit, the


free of same. Should pressure jetti

• Where trench reinstatements are undertaken by resources employed by the

Excavator/Civils Contractor, the trenches are required to be permanently reinstated within

a period of not exceeding 7 days from d

• All reinstatements undertaken will carry a maintenance guarantee period of 12 months

from the date of completion of the works being handed over to the Roads Department.

• Should the contract not comply with the Departmental requireme

the instructions from the Municipal Official to make good or comply, then the Municipality

reserves the right of requesting that such contractor be removed off site



42

free of same. Should pressure jetting be required to clean same, this must be arranged.

Where trench reinstatements are undertaken by resources employed by the


a period of not exceeding 7 days from date of final backfill.

All reinstatements undertaken will carry a maintenance guarantee period of 12 months


Should the contract not comply with the Departmental requirements and continue to ignore




ng be required to clean same, this must be arranged.

Where trench reinstatements are undertaken by resources employed by the


All reinstatements undertaken will carry a maintenance guarantee period of 12 months


nts and continue to ignore



REGIONAL CONTRACT

• Should the need arise to make contact with a Roads Department official for any reason or

clarity, the following shall apply:

Road Maintenance HQ

REGIONAL SUBURBS

1.) North Region Verulam, Tongaat, Phoenix, Inanda and Ntunzuma

2.) North Central Region Umhlanga, Durban North, KwaMashu, Newlands, Springfield, Durban, CBD, Berea, Maydon Wharf

3.) South Central Region Bellair, Catomanor, Clairwood, Bluff, Yellowood Park, Chatsworth, Umlazi, Isipingo and Prospecton

South Region Toti, Kingsburgh, Illovo, Folweni, Umkomaas

West Central Region: Pinetown, Westville, Reservoir Hills, Westmeath, Shall cross, Marianhill, Kwadengezi, Clemont, Kwadabeka

West Region Hillcrest, Kloof, Hammarsdale, Cateridge, Molweni



43

the need arise to make contact with a Roads Department official for any reason or

clarity, the following shall apply:

Barlla Munsamy (Admin Officer)

Tel: 031 311 7893Fax: 031 311 7691E-mail: [email protected]

MANAGER CONTACT DETAILS

Kevin Govender Tel: 031 Cell: 083 637 9266E-mail: [email protected]

Shan Govender Tel: 031 311 74 27Cell: 083 270 0234E-mail: govenderv@

Thomas Govender Tel: 031 466 8666Cell: 083 270 0234E-mail: govedertho

Peter Dally Tel: 031 311 5955Cell: 083 256 4412E-mail: [email protected]

Pinetown, Westville, Reservoir Siggie Miller Tel: 031 311 6403

Cell: 083 287 8582E-mail: [email protected]

Hillcrest, Kloof, Hammarsdale, Richard Mngoma Tel: 031 311 2736

Cell: 072 112 5030E-mail: [email protected]


the need arise to make contact with a Roads Department official for any reason or

Tel: 031 311 7893 Fax: 031 311 7691

[email protected]

CONTACT DETAILS

Cell: 083 637 9266

[email protected]

Tel: 031 311 74 27 Cell: 083 270 0234

[email protected]

Tel: 031 466 8666 Cell: 083 270 0234

[email protected]

Tel: 031 311 5955 Cell: 083 256 4412

[email protected]

Tel: 031 311 6403 Cell: 083 287 8582

[email protected]

Tel: 031 311 2736 Cell: 072 112 5030

[email protected]

Instructions To Contractors

1. Only 48 core LC patch panels must be used forMetroConnect equipment is located such as UMH fire station.

2. Use any existing patch panel that is at the PoP sites first before installing a new one. We will run out of space if every contractor uses a new patsplice trays.

3. Any new cabinet on site must be recessed 6 or 7 holes before the fibre splice trays are mounted in the cabinet

4. When a new splice tray is installed make sure enough slack is left so that future work in splice trays is not difficult.

5. At subscriber sites 24 core LC patch panels must be used.

6. Only 4-way dome joints must be used on any new dome joint installation.

7. When submitting an RFQ response, no maps are to be submitted unless your proposed route deviates from MC planned route.

8. Manholes are to be created 200m apart unless change in route direction is required or at 30 to 90 degree bend.

9. Manhole Spec (include locking mechanism) :drop-in

10. Fibre Spec : Proposed fibre is Systimax 11. As built map to be submitted on CAD and on Topographical Map.12. GPS co-ordinates to be provided in this format only : Long 30.123456

13. Completion file to be submitted as per MC



44

Additional Comments.

Instructions To Contractors - 28 October 2009

Only 48 core LC patch panels must be used for any new install at a PoP site i.e. where the MetroConnect equipment is located such as UMH fire station.

Use any existing patch panel that is at the PoP sites first before installing a new one. We will run out of space if every contractor uses a new patch panel and not make use of existing

Any new cabinet on site must be recessed 6 or 7 holes before the fibre splice trays are

When a new splice tray is installed make sure enough slack is left so that future work in

At subscriber sites 24 core LC patch panels must be used.

way dome joints must be used on any new dome joint installation.

When submitting an RFQ response, no maps are to be submitted unless your proposed route deviates from MC planned route. Manholes are to be created 200m apart unless change in route direction is required or at 30 to

Manhole Spec (include locking mechanism) : Proposed manhole is the Maverick round lid,

oposed fibre is Systimax As built map to be submitted on CAD and on Topographical Map.

ordinates to be provided in this format only : Long 30.123456 Lat

Completion file to be submitted as per MC template/sample


PoP site i.e. where the

Use any existing patch panel that is at the PoP sites first before installing a new one. We will ch panel and not make use of existing

Any new cabinet on site must be recessed 6 or 7 holes before the fibre splice trays are

When a new splice tray is installed make sure enough slack is left so that future work in the

way dome joints must be used on any new dome joint installation.

When submitting an RFQ response, no maps are to be submitted unless your proposed route

Manholes are to be created 200m apart unless change in route direction is required or at 30 to

Proposed manhole is the Maverick round lid,

Lat -29.123456

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