LUSAKA WATER SUPPLY SANITATION AND

DRAINAGE PROJECT TITLE: CONSTRUCTION PACKAGES

VENUE: MCA-ZAMBIA OFFICE

DATE: 24th SEPTEMBER 2013

SECTOR: INFRASTRUCTURE DEVELOPMENT

The Presentation

1. Background

2. Contract Package 1

3. Contract Package 2

4. Contract Package 3

5. Contract Package 4

6. Contract Package 5

7. Contract Package 7

8. Contract Package 8

9. Discussion/Working groups

The Packages

Notation Sub Project Description

CP1 LP1 Iolanda Chilanga Pipeline Rehabilitation and Rehabilitation of Distribution

Centres (7C, Woodlands, Waterworks, Lumumba, Stuart Park East,

Stuart Park West, Chawama, Chelston and Mass Media )

CP2 LP6 Construction of Lumumba, Roadside and Kamloops Pipelines

CP3 LS3,CSE44,

CSU4

Water and Sewer Reticulation in the Kamanga, Mtendere, Kaunda

Square and Chelston Areas

CP4 TU5 & TU3 Kaunda Square Waste Stabilization Ponds

CP5 LS3, LS2 Water Reticulation in Ndeke, Kwamwena, SOS Village, Chipata and

Ng’ombe

S

CP6 LS1 Non-revenue water reduction projects

CP7 LD2 Bombay Drainage Project North

CP8 LD1 Bombay Drainage Project South

3

Contract Package 1

4

Water Supply-Iolanda

Central core of Lusaka’s Water Supply Infrastructure

The plant in Kafue is over 40 years old

Some distribution centres are 58 years old

5

Images

6

Works

• Cleaning of pump sump below water line

• Replacement of screens

• Replacement of pumps

• Replacement of motor control centers

• Repair of concrete structures

• Replacement of chlorination units

• Repair to process units

7

Works continued

• Telemetry/SCADA commissioning

• Air Blowers replacement

• Chemical House repair

• Restoration of Al2SO4 mixing and dosing

• Replacement/Rehab of Valves

• Repairs To The Building

• Works On The Yard

8

Water Supply-Distribution Centers • Woodlands, High Court, Stuart Park West and Stuart Park East

• Mass Media, Chelston

• Lumumba/Matero CBD Matero Emmasdale

• Chawama

• Waterworks 1 & 2

9

Works

• Replacement of Pumps

• Replacement of Motors/MCC

• Installation of new chlorinators

• Repair of concrete reservoirs

• Works on the buildings

• New anchor blocks

• Valve replacement

10

Contract Package 2

11

Water Supply-Pipelines

• Lumumba Pipeline

• Roadside Pipeline

• Kamloops Pipeline

12

PIPELINES

Water Supply-Pipelines

13

16 Kilometers of new Steel Pipelines

Running through

• Residential Areas

• Trading areas

• Street vending areas

• Congested roads

• Sensitive state installations

• Railway and Pylon way leave

Works

• Excavations

• Road cutting & reinstatement

• Bedding

• Chamber construction

• Pipe laying

• Pressure testing

• Backfilling

• Connections

• Valve Installation

14

Works continued

• Culverts

• Reinstatement of wall

• Access to shops

• Major road cuttings

15

Contract Package 3

16

Water Supply-Networks

17

DISTRIBUTION NETWORKS

Networks

• Kamanga 14.4Km

• Mtendere 60.2Km

18

Works

• Excavations

• Pipe protection

• Pipe laying

• Meter Installation

• Customer connection

• Backfilling

• Pressure Testing

• Installation of valves

• Construction of Chambers/Buildings/Reservoirs

19

Mtendere

20

MTENDERE SITE

Mtendere Network

21

MTENDERE SEWER NETWORK

Works

• Excavations

• Road cutting & reinstatement

• Bedding

• Chamber construction

• Pipe laying

• Backfilling

• Connections

• Valve Installation

22

Works continued

• Connections

• Manholes Construction

23

Chelston Pump Station

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CSU15 PUMP STATION AND RISING MAIN

Chelston Pump Station

• Lack of capacity leading to overflowing

• Flooding due to combined sewer and storm water.

• Increase pumping to meet 2035 requirements

• Ensure that the Structures and force main capacity meets 2035 requirements

• Generally rehabilitate the station for a 20 year life.

25

Works

• Excavations

• Sewer Pump replacements

• Motor control centers

• Construction of collection sump

• Replacement of valves

• Construction of Guard house and operators room

• SCADA/Telemetry

26

Works

• Excavations

• Bedding

• Chamber construction

• Pipe laying

• Backfilling

• Valve Installation

27

EXCAVATION

Kaunda Square Interceptor • Networks Serves 2,120 ha

• Gravity network system

• Combined Storm and sanitary sewer that drains to Kaunda square ponds

• The land use of the area is mainly high density residential dwellings

28

Works

• Excavations

• Road cutting & reinstatement

• Bedding

• Chamber construction

• Pipe laying

• Backfilling

• Connections

• Valve Installation

29

Works

• Excavations

• Road cutting & reinstatement

• Bedding

• Chamber construction

• Pipe laying

• Backfilling

• Connections

• Valve Installation

30

Kaunda Square Ponds

31

KAUNDA SQUARE PONDS

Contract Package 4

32

Kaunda Square Ponds

• Rehabilitation, upgrading and expansion of the existing dilapidated ponds

• Ponds to cope with the increased wastewater flows up to 2015

• Designed for a peak wastewater flow of 473.4 l/s

• New pond stream with approximately the same capacity as the upgraded one will be construction

33

Works

• Demolition of the existing head works

• Rehab of existing ponds

• Removal of vegetation

• Dredging of ponds

• Construction of by pass channel

• Construction of new sludge drying beds

• Construction of new ponds across the road

• Construction of utility building and guard house

• Erection of fence around the ponds

34

Contract Package 5

35

Water Supply-Networks

36

DISTRIBUTION NETWORKS

Networks

• SOS East 26.8Km

• Chipata 27.3Km

• Ng'ombe 5.2Km

• Kwamwena 97Km

• Ndeke/Vona 94 Km

37

Works • Excavations

• Pipe protection

• Pipe laying

• Meter Installation

• Customer connection

• Backfilling

• Pressure Testing

• Installation of valves

• Construction of Chambers

38

Water Supply-Boreholes

39

Kwamwena Ndeke Vona valley

Works

• Drilling

• Development

• Testing

• Sleeve installation

• Testing

• Shutdowns

• Construction

40

Drainage Projects

41

Drainage Projects

42

• Construction of rectangular and covered drains.

• Construction of open trapezoidal drains

• Repairs of manhole and concrete structures

• Replacement of culverts

• Construction of access structures

• Construction of Safety fencing

The Contracts

• CP7 = Improvement of Bombay Drainage System (North). Part of Bombay Main from GER, ZESCO Drain, Part of segment 3, Part of Segment 4 and Segment 5

• CP8 = Improvement of Bombay Drainage System (South). Lumumba and Kalambo Drain

43

Bombay Drainage System

• Occupies part of the Ngwerere stream basin

• Has a total Catchment of 123 km2

• Two separate catchment outflows.

One man made to the south-west

The other, natural and northwards

44

The Layout

45

PROPOSED CONTRACT PACKAGES

Contract Package 7

46

Bombay Main

4782 Meters of Drains from Great East Road heading North past Kasangula Road

• Trapezoidal Channels

• Rectangular Pre-cast drain sections

• Fencing with Concrete Posts and Steel Sections

• Dewatering

• Earthworks

• Culverts Installations

• Crossings

47

Segment 3

1159 Meters of drains from Great East Road through Thornpark and Garden into Bombay Main

• Trapezoidal insitu drains

• Crossings

• Dewatering

• Earthworks

• Culvert Installation

48

Segment 4

616 Meters of Drains from Great North Road through Thornpark into Garden.

• Trapezoidal insitu drains

• Dewatering

• Earthworks

• Culvert Installation

49

Segment 5

4319 Meters of drains from Great East Road near ZESCO fly over bridge running north in the railway line corridor

• Trapezoidal insitu drains

• Dewatering

• Earthworks

• Culvert Installation

50

Lumumba North

901 Meters of Drains from Great North Road through Mandevu into the Bombay Main Drain

• Trapezoidal insitu drains

• Rectangular precast concrete sections

• Dewatering

• Earthworks

• Culvert Installation

51

Contract Package 8

52

Bombay Main

5831 meters of drains from Kamwala South/Msisi through Kamwala, Intercity, Fairview and Northmead

• Trapezoidal insitu drains

• Rectangular precast concrete sections

• Earthworks

• Culvert Installation

• Crossings

53

Segment 2

4984 meters of drains from Libala South through Kabwata, Luburma, Nipa ending in Evelyn Hone College

• Trapezoidal insitu drains

• Fencing

• Earthworks

• Culvert Installation

• Crossings

54

Segment 3

899 meters of drains from Church Road behind Levy Park Shopping Mall past ZESCO up to Great East Road.

• Trapezoidal in-situ drains

• Fence reinstatement

• Earthworks

• Culvert Installation

55

Lumumba North

5195 meters of drains from Kalambo Road heading North past Mungwi Road, Buseko market into Vubu Road through Emmasdale Bank back to Lumumba Road and up to GNR

• Trapezoidal insitu drains

• Precast concrete sections

• Earthworks

• Culvert Installation

• Fencing

56

Lumumba South

2864 meters of drain from Carousel Shopping Center past City Market, Munyaule Market Lumumba Bus Station into Kalambo drain

• Trapezoidal insitu drains

• Precast concrete sections

• Earthworks

• Culvert Installation

• Covering

57

ZESCO Drain

910 meters of covered drain from Cairo Road heading east until it joins Segment 3

• Rehabilitation with repairs to manholes and internal structural repairs

• Cleaning and silt removal

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Discussion

Issues to be addressed in each group.

• Work Plan

• Procurement Plan

• Financial Forecast/Plan

• Project Management

• Contract Management and Closeout

59

Discussion

Issues to be addressed in each group.

• Work Plan

• Procurement Plan

• Financial Forecast/Plan

• Project Management

• Contract Management and Closeout

60