F.24 - cornwall.gov.uk · The rates used in costing this series have been taken from Spon's Civil...

Page 6

Appendix C SLR Cost Estimate Update

F.24.5

Series Title Value % of Point Estimate

200 Site Clearance £625,296.30 5%

300 Fencing £113,973.12 1%

400 Road Restraint Systems (Vehicle and Pedestrian) £30,547.20 0%

500 Drainage £1,277,720.34 10%

600 Earthworks £1,892,303.71 15%

700 Pavements £1,892,996.88 15%

1100 Kerbs, Footways & Paved Areas £442,303.37 4%

1200 Traffic Signs & Road Markings £36,311.09 0%

1300 Road Lighting £318,523.48 3%

1700 Structural Concrete £894.42 0%

2700 Accomodation Works, Works for Statutory Undertakers £715,283.09 6%

3000 Landscaping and Ecology £34,807.43 0%

Direct Construction Works (£) £7,380,960.41 60%

100 Preliminaries 25.0% £1,845,240.10 15%

- Overheads and Profit 13.7% £1,011,191.58 8%

Indirect Construction Costs (£) £2,856,431.68 23%

Total Base Construction Cost (£) £10,237,392.09 83%

- Design Team Fees 7.5% £767,804.41 6%

- Project Team Fees 11.1% £1,136,350.52 9%

- Survey costs £125,000.00 1%

- Land cost (assumed value)

Employer Indirect Costs £2,029,154.93 17%

Point Estimate (£) £12,266,547.02 100%

- Risk Allowance £306,587.50

Cost Limit Excluding Inflation (£) £12,573,134.52

- Inflation 2.5% £314,328.36

Cost Limit Including Inflation (£) £12,887,462.88

- Optimism Bias 44.0% £5,670,483.67

Total Captial Cost Estimate (£) £18,557,946.55

Ch 0 - 400 and Drainage West £3,317,787.93

Ch 400 - 510 £930,573.48

Ch 510-960 £3,306,635.00

Ch 960 - 1825 £4,372,126.53

Ch 1825 - 2200 £1,340,562.69

A388 Rounadbout and Drainage East £5,290,260.91

Notes:

Land cost has not been included as it is currently unknown

Rates are based on construction taking place in the current year so cost shown would be subject to inflation in future years

Project Title: T5070-006 Launceston Southern Loop Road

Drawing Reference: 70028324-101-103

Date: Q1 2017 - 18/04/2017

The rates used in costing this series have been taken from Spon's Civil Engineering & Highway Works Price Book 2015 (29th

Edition)

Cost Summary

Bill of Quantities: Whole Route

Project Number: 70028324


200 Site Clearance £121,454.65 6%

300 Fencing £22,943.40 1%


500 Drainage £241,263.12 11%

600 Earthworks £418,384.07 19%

700 Pavements £257,690.56 12%


1200 Traffic Signs & Road Markings £779.13 0%

1300 Road Lighting £60,725.70 3%





100 Preliminaries 25.0% £330,686.38 15%

- Overheads and Profit 13.7% £181,216.13 8%

Indirect Construction Costs (£) £511,902.51 23%


- Design Team Fees 7.5% £137,598.60 6%

- Project Team Fees 11.1% £203,645.93 9%

- Survey costs £20,833.33 1%

- Land cost (assumed value) £0.00

Employer Indirect Costs £362,077.87 16%

Point Estimate (£) £2,196,725.89 100%



- Inflation 2.5% £56,195.60


- Optimism Bias 44.0% £1,013,768.54


Notes:

Cost Summary


Edition)





Bill of Quantities: Ch 0 - 400m inc. Drainage West (No associated plot reference)


Date: Q1 2017 - 18/04/2017


200 Site Clearance £0.00 0%

300 Fencing £5,289.84 1%

400 Road Restraint Systems (Vehicle and Pedestrian) £0.00 0%

500 Drainage £47,435.13 8%

600 Earthworks £11,190.81 2%

700 Pavements £95,782.82 17%



1300 Road Lighting £20,120.21 3%




Direct Construction Works (£) £339,540.85 59%

100 Preliminaries 25.0% £84,885.21 15%



Total Base Construction Cost (£) £470,943.16 81%

- Design Team Fees 7.5% £35,320.74 6%


- Survey costs £20,833.33 4%



Point Estimate (£) £579,371.92 100%


Cost Limit Excluding Inflation (£) £630,469.84

- Inflation 2.5% £15,761.75

Cost Limit Including Inflation (£) £646,231.58

- Optimism Bias 44.0% £284,341.90

Total Captial Cost Estimate (£) £930,573.48

Notes:

Cost Summary


Edition)





Bill of Quantities: Ch 400 - 510m (LAU-E2)


Date: Q1 2017 - 18/04/2017


200 Site Clearance £119,430.93 5%

300 Fencing £20,597.52 1%


500 Drainage £253,174.30 12%

600 Earthworks £187,055.50 9%

700 Pavements £444,573.69 20%



1300 Road Lighting £70,189.95 3%





100 Preliminaries 25.0% £329,538.01 15%




- Design Team Fees 7.5% £137,120.77 6%


- Survey costs £20,833.33 1%



Point Estimate (£) £2,189,169.70 100%



- Inflation 2.5% £56,006.69


- Optimism Bias 44.0% £1,010,360.69


Notes:

Cost Summary


Edition)





Bill of Quantities: Ch 510 - 960m (LAU-E1)


Date: Q1 2017 - 18/04/2017


200 Site Clearance £173,178.57 6%

300 Fencing £41,873.52 1%


500 Drainage £360,385.04 12%

600 Earthworks £301,608.04 10%

700 Pavements £470,542.34 16%



1300 Road Lighting £107,041.10 4%





100 Preliminaries 25.0% £439,247.07 15%




- Design Team Fees 7.5% £182,770.71 6%


- Survey costs £20,833.33 1%



Point Estimate (£) £2,911,047.43 100%



- Inflation 2.5% £74,053.63


- Optimism Bias 44.0% £1,335,927.55


Notes:

Cost Summary


Edition)





Bill of Quantities: Ch 960 - 1825m (LAU-H2)


Date: Q1 2017 - 18/04/2017


200 Site Clearance £0.00 0%

300 Fencing £18,853.68 2%


500 Drainage £81,794.73 10%

600 Earthworks £37,606.70 4%

700 Pavements £143,426.70 17%


1200 Traffic Signs & Road Markings £429.76 0%

1300 Road Lighting £45,377.81 5%




Direct Construction Works (£) £508,400.13 59%

100 Preliminaries 25.0% £127,100.03 15%



Total Base Construction Cost (£) £705,150.97 82%

- Design Team Fees 7.5% £52,886.32 6%


- Survey costs £20,833.33 2%



Point Estimate (£) £857,142.39 100%


Cost Limit Excluding Inflation (£) £908,240.30

- Inflation 2.5% £22,706.01

Cost Limit Including Inflation (£) £930,946.31

- Optimism Bias 44.0% £409,616.38


Notes:

Cost Summary


Edition)





Bill of Quantities: Ch 1825m - Ch 2200 (LAU-H1)


Date: Q1 2017 - 18/04/2017


200 Site Clearance £211,232.15 6%

300 Fencing £4,415.16 0%


500 Drainage £293,668.02 8%

600 Earthworks £936,458.58 27%

700 Pavements £480,980.77 14%



1300 Road Lighting £15,068.69 0%





100 Preliminaries 25.0% £533,783.40 15%




- Design Team Fees 7.5% £222,107.27 6%


- Survey costs £20,833.33 1%



Point Estimate (£) £3,533,089.69 100%



- Inflation 2.5% £89,604.69


- Optimism Bias 44.0% £1,616,468.61


Notes:

Cost Summary


Edition)





Bill of Quantities: A388 Roundabout and Drainage East (No associated plot reference)


Date: Q1 2017 - 18/04/2017

% contribution to

Optimism Bias

Mitigation

Factor

(0-1)

Reduction in %

contribution to

Optimism Bias

Comments

Late Contractor Involvement in Design 3 0 0 Contractor involved after detailed design undertaken

Dispute & Claims Occurred 21 0 0 Contract not yet award

Environmental Impact 22 0 0 Recent EIA not carried out

Other 18 0 0

Inadequacy of the business case 10 0 0 Early stage of development

Poor project intelligence 7 0 0

Public Relations 9 0 0

Site Characteristics 3 0 0A sharp bend is present therefore causing issue of visibility and

stopping sight distances for design

External Economic 7 0 0

Total 100 0

Initial upper bound Optimism Bias 44%

Final Optimism Bias 44%

Client specific

Date: Q1 2017 - 18/04/2017


Procurement

Environment


Optimism Bias CalculationBased on Table 3 from Supplementary Green Book Guidance

Contributory Factor

Project Specific

12-Jan-15

£306,588

% Score Minimum Most Likely Maximum

001 GovernanceSteering Group actions not

completed on timeExceedance of tolerances 25% 3 1 1 3 3 9 15 £4,000 £8,000 £20,000 £2,000

Cornwall

Council

Project governance

established

Steering

Group

002 GovernanceScheme does not receive

Cabinet approvalDelay/cancel scheme 25% 3 1 1 3 3 9 15 £16,000 £25,000 £50,000 £6,250

Cornwall

Council

Scheme helps achieve LTP3

objectives. Engage with

councillors early to ensure they

are on board with scheme

proposals.

Cornwall

Council

003 Interfaces Overall programme slips Delay scheme / additional cost 50% 3 1 1 3 3 9 15 £4,000 £8,000 £24,000 £4,000Cornwall

Council

Float incorporated into

programme. Scheme delivered

in funding timescales.

Designer /

Cornwall

Council

004 InterfacesAcquisition of third party land

needed to deliver the projectDelay/cancel scheme 90% 5 1 2 5 10 50 2 £5,000 £15,000 £75,000 £13,500 Designer

Spend greater 2D / 3D design

effort during the preliminary

design stage to identify land

requirements during Stage 1

Designer

005Planning

Approval

Project requires planning

approval rather than GPDODelay/cancel scheme 20% 2 2 3 4 6 24 8 £60,000 £95,000 £130,000 £19,000

Cornwall

Council

Early engagement with

planning officer

Cornwall

Council

006Planning

Approval

Failing to achieve planning

approval within time constraintsDelay/cancel scheme 30% 3 1 1 3 3 9 15 £5,000 £10,000 £50,000 £3,000

Cornwall

Council


planning officer

Cornwall

Council

007 Design

Phase 1 Habitat survey reveal

requirement for further surveys

to be undertaken

Delay scheme / additional cost 5% 3 1 1 3 3 9 15 £2,500 £5,000 £50,000 £250 DesignerEarly engagement with

planning officerDesigner

008 DesignLack of accuracy in Topographic

SurveyDelay scheme / additional cost 40% 3 1 1 3 3 9 15 £10,000 £25,000 £50,000 £10,000 Designer

Ensure Tender includes for

provision of a "check" survey

during tender

Designer

009 Design Change of project staff Delay scheme / additional cost 20% 2 1 2 2 4 8 23 £500 £4,000 £8,000 £800Cornwall

Council

Ensure sufficient allowance for

handover

Cornwall

Council

010 Design Lack of project resources Delay scheme / additional cost 40% 3 1 2 3 6 18 9 £2,000 £5,000 £16,000 £2,000 DesignerIdentify resource requirements

earlyDesigner

011 DesignPotential Planning Mitigation

Actions (landscaping etc.)Delay scheme / additional cost 30% 3 1 1 3 3 9 15 £1,000 £5,000 £20,000 £1,500 Designer


planning officerDesigner

012 Design

Grade II listed milestone needs

to be relocated/ protected as part

of the scheme development

Additional cost 90% 5 1 2 5 10 50 2 £5,000 £10,000 £100,000 £9,000Cornwall

Council

Engage with Historic

Environment officer asap to

understand issues and

processes involved and to

minimise costs and

programme impacts

Designer

013 Design

Scheme proposals impact on

Tree Preservation Order areas

requiring trimming of trees

Additional cost / Delay scheme 30% 5 1 2 5 10 50 2 £10,000 £25,000 £50,000 £7,500Cornwall

Council

Engage with tree officers in

development of scheme

proposals to minimise cost and

programme impacts

Designer

014 Design

Overconservative drainage

design due to lack of existing

drainage information

Delay scheme / additional cost 50% 5 1 1 5 5 25 7

Construction

cost considered

in additiion

£50,000 £75,000 £100,000 £37,500Cornwall

Council

Liaison with Regional

Highways team, commission a

drainage CCTV survey if

details are unclear

Designer

015 Design

Unfavourable Traffic Modelling

Outcomes requires further

design development to the

current proposal

Delay / cancel scheme /

additional cost50% 3 1 2 3 6 18 9 £4,000 £8,000 £20,000 £4,000

Cornwall

Council

Appropriate future modelling in

VISSIM or PARAMICSDesigner

016 Procurement Lack of interest in tender Delay scheme / additional cost 5% 1 1 2 1 2 2 39 £5,000 £10,000 £50,000 £500Cornwall

Council

Use CC framework. Hold

"Suppliers Day" meeting with

contractors to ensure they are

aware of bid coming out and

can plan their resources

accordingly

Cornwall

Council

017 Procurement Cost estimate too low Delay scheme / additional cost 20% 2 2 2 4 4 16 12 £30,000 £150,000 £300,000 £30,000 DesignerUpdate cost estimate at end of

each development StageDesigner

018 ProcurementContract options chosen

inappropriate for scheme

Client retains too much

construction risk5% 1 2 1 2 1 2 39 £30,000 £150,000 £300,000 £7,500

Cornwall

Council

Discuss any lessons learned

on recent contracts with Capital

Works team and use to

determine appropriate form of

contract

Cornwall

Council

019 Procurement Tender evaluation isn't robust Additional cost 5% 1 1 1 1 1 1 43 £30,000 £150,000 £300,000 £7,500Cornwall

Council

Evaluation of price and quality

submission. Modelling of

compensation events

Cornwall

Council

020 Procurement Delay in contract award Delay scheme / additional cost 5% 1 1 2 1 2 2 39 £500 £750 £4,000 £38Cornwall

Council

Incorporate committee dates

into programme and manageDesigner

Risk Allowance:

Project:

Displayed: Quantified Risk Assessment and Risk Management Strategy

Risk Review Date:

Cost

Assumptions

Risk Description Current Qualitative Scoring Current Quantitative Evaluation Action, Mitigation & Notes

Risk ID

NoRisk Category Risk Description Risk Consequence

Likelihood

Cost

Schedule

Cost Risk

Score

Schedule

Risk Score

Combined

Risk ScoreRisk Rank Notes

Cost Impact

Risk ValueRisk Owner/

ManagerCurrent Control Measures Action Owner

Target

Completion

Date

021 ConstructionStatutory undertakers diversion

works delaysDelay scheme / additional cost 20% 2 1 2 2 4 8 23 £50,000 £75,000 £150,000 £15,000

Cornwall

Council

Early engagement with SU

regarding programme and

procurement lead in. Organise

Co-ordination meeting with all

Statutory Providers and

Contractor prior to construction

phase

Designer

022 Construction Unforeseen ground conditions Delay scheme / additional cost 10% 2 1 2 2 4 8 23 £10,000 £25,000 £50,000 £2,500Cornwall

Council

Commission appropriate level

and extents of geotechnical

investigation is carried out

early in the scheme

development

Designer

023 ConstructionUnforeseen services found

during constructionDelay scheme / additional cost 10% 2 1 2 2 4 8 23 £20,000 £50,000 £100,000 £5,000

Cornwall

Council

Undertake NRSWA C2.

Contractor to scan site prior to

commencing works

Cornwall

Council

024 Construction

Poor co-ordination and

programming of statutory

undertakers

Delay scheme / additional cost 30% 3 1 1 3 3 9 15 £10,000 £50,000 £75,000 £15,000Cornwall

Council

Early engagement with SU

regarding programme and

procurement lead in. Organise

Co-ordination meeting with all

Statutory Providers and

Contractor prior to construction

phase

Designer

025 Construction

Inappropriate contract

administration and supervision

staff


CouncilEnsure appropriate staffing

Cornwall

Council

026 Construction

Impact on operations of hospital

or business park greater than

planned for


Council

Ensure sufficient planning of

traffic management and

contingency plans for delays.

Consult with hospital and

emergency services during

scheme development to

minimise the impacts and

capture requirements for

Tender package. Include the

need for Contractor to continue

the liaison as part of the tender

package.

Designer

027 ConstructionKnotweed on site not adequately

managed prior to constructionAdditional cost / Delay scheme 10% 2 2 1 4 2 8 23 £50,000 £100,000 £150,000 £10,000

Cornwall

Council

Liaise with Knotweed officer

and agree best management

strategy to limit cost and

programme implications to

construction

Designer

028 Construction

Traffic Management required

proves to be more complicated

than envisaged during scheme

preparation


Council

Early engagement with Street

works co-ordinator to fully

understand constraints and

ensure sufficient information

contained within the tender

package. Consider

development of early TM plan.

Liaise with other Truro corridor

projects to maximise

opportunities and limit impacts.

Designer

029 Construction

Night time working and traffic

management results in

excessive "disturbance" claims

for noise etc.

Additional cost 20% 2 1 1 2 2 4 35 £20,000 £50,000 £100,000 £10,000Cornwall

Council

Ensure the Tender package

CEMP contains suite of robust

noise and dust management

measures and other best

practice mitigation. Liaise with

Community Network officers to

ensure public is fully informed

and realises the benefits of the

scheme proposals.

Designer /

Cornwall

Council

030 Construction

Unknown archaeological finds

made during works causing

delays to the programme


Council

Contact environment and

archaeology sections of CC as

part of further scheme design

Designer

031 Construction

Contaminated materials

encountered during ground

investigation and construction

works


Council

Ensure suitable ground

investigation and

contamination testing of

samples

Designer

032 Construction

Extent of historic extraction

industries (mining / quarrying /

tin streaming) in relation to the

road corridor creating

underground instability


Council

Review documentation and if

appropriate conduct

intrusive/geophysical

investigations

Designer

033 ConstructionUnrecorded buried

obstructions/voidsAdditional cost / Delay scheme 20% 2 2 1 4 2 8 23 £5,000 £10,000 £20,000 £2,000

Cornwall

Council

Unexpected ground conditions

to be reported immediately to

client/designer

Contractor /

Survey Team

034 Construction

Excessive total differenetial

settlement of the

highway/earthworks


Council


investigation and testing of

samples

Designer

035 Construction

Shallow groundwater

destabilising or flooding shallow

excavations


Council

Suitable ground investigation

including standpipes to

determine the level and

fluctuations of groundwater

Designer

036 Construction Soil Chemistry Additional cost / Delay scheme 15% 2 1 1 2 2 4 35 £5,000 £10,000 £20,000 £1,500Cornwall

Council

Chemical analysis to confirm

appropriate cut slope angles,

presence of faults, fracture

spacing, cohesion and swelling

clays

Designer

037 Construction

Hard rock encountered above

founding level - hard to

excavate/rip


Council


investigationDesigner

038 ConstructionUnfavourable structural geology

causing rock/lsope failureAdditional cost / Delay scheme 40% 3 2 2 6 6 36 5 £10,000 £20,000 £40,000 £8,000

Cornwall

Council



039 ConstructionPresence of historcial landslip

materialAdditional cost / Delay scheme 5% 1 2 2 2 2 4 35 £10,000 £20,000 £40,000 £1,000

Cornwall

Council



040 Construction

Presence of unforeseen soil/rock

units requiring slacker cut slope

angles and increased land take


Council



041 Construction

Made ground requiring

unexpected ground improvement

works/disposal


Council



042 ConstructionInadequate CBR of natural/fill

materials at formation levelAdditional cost / Delay scheme 30% 2 2 1 4 2 8 23 £5,000 £10,000 £20,000 £3,000

Cornwall

Council



043 ConstructionUnrecorded mine features

(shafts/adits)Additional cost / Delay scheme 20% 3 2 2 6 6 36 5 £10,000 £20,000 £40,000 £4,000

Cornwall

Council


investigation, watching brief

during construction

Designer /

Contractor

£306,588Risk Allowance (Total):

Risk Probability Impact Diagram

> 75% 5 10 15 20 25

50-75% 4 8 12 16 20

20-50% 3 6 9 12 15

5-20% 2 4 6 8 10

< 5% 1 2 3 4 5

Very low Low Medium High Very High

Cost<£927.9k£927.9-1855.79k

Cost

£1855.79-

4639.49k Cost

£4639.49-9278.97k

Cost

Cost>£9278.97

k

Lik

eli

ho

od

/Pro

ba

bil

ity

Construction CostEstimate

£18,557,947

Overall ProgrammeTime Frame <4 weeks 8 - 20 weeks 20 - 40 weeks >40 weeks

80 WkCost/Time Impact

4 - 8 weeks

Ref Item Description Quantity Unit Rate Total

Series 200: Site Clearance

Site Clearance

General site clearance; open field site 12.55 ha 1,688.04 21,177.31

General site clearance; medium density wooded 9.88 ha 3,510.32 34,664.41

Dry Stone Boundary Wall 5,560 m³ 79.50 442,020.00

Take Up or Down and Set Aside for Re-Use or

Remove to Store or Tip Off Site

Take up or down and remove to tip off site;

precast concrete kerbs 298 m 298.00 88,804.00

Take up or down and remove to tip off site; traffic

signs 14 no 14.00 196.00

Take up or down and remove to tip off site; road

stud 10 no 10.00 100.00

Timber Post & Four Rail Fence 2,471 m 15.50 38,300.50

Gully grating & Frame 6 no 5.68 34.08Series 200 Total £625,296.30

Date: Q1 2017 - 18/04/2017



Bill of Quantities: Preliminary Design



Series 300: Fencing

Fencing, Gates and Stiles

Timber rail fencing; 1.4m high, timber posts and

four rails 4,295 m 23.64 101,533.80

Steel tubular single field gate 1.175m high 5.02m

wide 24 no 262.70 6,304.80

Concrete foundation to gate posts for single field

gate 48 no 9.11 437.28

Soakaway/Attenuation Feature

Timber rail fencing; 1.4m high, timber posts and

four rails 241 m 23.64 5,697.24

Series 300 Total £113,973.12


Date: Q1 2017 - 18/04/2017





Series 400: Road Restraint Systems (Vehicles

and Pedestrians)

Beam Safety Barrier, Untensioned beams, single

sided open box beam, straight or curved

exceeding 120 m radius 640 m 47.73 30,547.20

Series 400 Total £30,547.20

Date: Q1 2017 - 18/04/2017






Series 500: Drainage and Service Ducts

Drainage and Service Ducts (excluding Filter

Drains, Narrow Filter Drains and Fin Drains)

300m internal diameter drain specified design

group * with Type S bed and surround in trench,

average depth to invert 3.00 metres 3,163 m 210.99 667,361.37

Chamber and Gullies

1200 dia x 2000 depth to invert, precast concrete

construction, inc. excavation, backfill and disposal 65 no 1,502.06 97,633.90

Precast concrete; set in concrete grade C20P,

150 mm thick; additional excavation and disposal,

Road gulley; trapped with rodding eye;

galvanized bucket; stopper, 450 mm

dia. × 900 mm deep, cast iron road gulley grating

and frame group 4, 434 × 434 mm, on Class B

engineering brick seating 301 no 527.49 158,774.49

Connections

150mm dia. drain average 2m deep gully

connection with Type S bed and surround 2,408 m 99.67 240,005.36

Excavation In Hard Material

Extra over excavation for excavation in Hard

Material in drainage, existing pavement 200 m² 24.97 4,994.00


Complex control chamber, 2.4m dia x 3m depth to

invert, excavation, support, backfilling and

disposal, including control method 2 no 7,503.63 15,007.26

Valve chamber , 1.2m dia x 3m depth to invert,

excavation, support, backfilling and disposal,

including control method 2 no 2,160.18 4,320.36

Reinforced concrete headwall, 225mm thick 16 m² 125.00 2,040.00

Culverts

900mm dia. piped culvert in trench, depth to

invert, average 4.00m deep, Type A Concrete

surround 1500mm wide x 150mm 130 m 673.72 87,583.60

Date: Q1 2017 - 18/04/2017






Date: Q1 2017 - 18/04/2017





Series 500 Total £1,277,720.34


Series 600: Earthworks

Excavation of acceptable material Class 5A 9,705 m3

3.08 29,892.31

Excavation of acceptable material excluding Class

5A in cutting and other excavation 13,913 m3

4.11 57,182.85

Extra over for excavation in cutting and other

excavation in hard material; using backacters and

tractor loader with ripper, rock 2,000 m3

72.49 144,980.00

Deposition of acceptable material Class 1C/6B in

embankments and other areas of fill 39,758 m³ 1.19 47,311.95

Imported graded granular fill, DfT Class 2A/B/C/D

[1.8 t/m³]; using tractor loader, Imported

acceptable material in embankments and other

areas of fill 30,696 m³ 23.73 728,412.47

Disposal of acceptable material Class 5A 2,912 m3

113.89 331,600.88

Compaction of granular fill material, in

embankments and other areas of fill 39,758 m3

0.63 25,047.50

Excavation of soft spots and other voids using

motorised scrapers and/or dozers, excavate

below cuttings or under embankments 1,000 m3

8.68 8,680.00

Topsoiling 150 mm thick to surfaces at 10° or less

to horizontal 6,834m² 6.08

41,550.72

Breaking up and perforation of redundant

pavements, Breaking up of redundant flexible

pavement, 100mm deep 421 m² 6.45 2,715.45

Imported graded granular fill, DfT Class 6F

(1.9t/m³); using tractor loader Imported

acceptable material in embankments and other

areas of fill 5,581 m³ 37.16 207,382.53

Imported graded granular fill, DfT Class 6F

(1.9t/m³); using tractor loader extra for aggregate

Tax 5,581 m³ 4.99 27,848.19

Compaction of fill, Compaction of granular fill

material in embankments and other areas of fill 5,581 m³ 2.50 13,952.00

Perforation of redundant flexible pavement, 100-

200mm deep 4,052 m² 0.95 3,848.99

Date: Q1 2017 - 18/04/2017






Date: Q1 2017 - 18/04/2017






Excavation of acceptable material Class 5A 1,463 m3

3.08 4,505.42

Excavation of acceptable material excluding Class

5A in cutting and other excavation 3,557 m3

4.11 14,620.09

Disposal of acceptable material to landfill

including Class 5A using 10-15 tonne capacity

tipping lorry for on site or off site use 400 m³ 113.89 45,556.00

Deposition of acceptable material Class 1C/6B in

embankments and other areas of fill 1,092 m³ 1.19 1,299.48

Lining of new watercourse 4,350 m² 34.10 148,335.00

Gabion walling with headwall with heavily

galvanised woven wire mesh, wire laced; filled

with 50mm Class 6G material, 2.0 x 1.0 x 1.0m

modules sizes 19 m³ 118.17 2,245.23

Mattress with plastic coated galvanized wire

mesh; filled with 50 mm Class 6G material

installed at 10° or less to the horizontal. 48 m³ 112.35 5,336.63

Series 600 Total £1,892,303.71


Series 700: Pavements

Sub-Base

Granular Type 1 sub-base in carriageway,

hardshoulder and hardstrip, 150mm deep 5,922 m3

34.23 202,697.81

Pavement

Dense Bitumen Macadam Base to DfT Clause

903: 200mm deep 26,617 m2

30.93 823,268.20

Dense Bitumen Macadam Binder course to DfT

Clause 904 50mm deep 26,617 m2

11.90 316,743.99

Dense Bitumen Macadam Surface course to DfT

Clause 909 50mm deep 26,617 m2

13.06 347,619.87

Cold Milling (Planing)

Milling pavement; 100mm 4,797 m2

15.18 72,819.04

Tack Coat

Bituminous spray; BS 434 K1–40, Tack coat to

DfT Clause 920, large areas; over 20 m² 53,234 m2

0.73 38,861.03

Anti Skid Surfacing System

High friction surfacing to DfT Clause 924,

Proprietary resin bonded surfacing system,

colours (Buff, Grey, Red, Green) 4,037 m2

21.00 84,768.66


Granular Type 1 sub-base in carriageway,

300mm deep 166 m³ 37.55 6,218.28

Series 700 Total £1,892,996.88


Date: Q1 2017 - 18/04/2017





Series 1100: Kerbs, Footways and Paved

Areas

Kerbs

Precast concrete kerbs, half battered, laid straight

or curved exceeding 12 metres radius, 125 x

255mm 6,137 m 16.32 100,155.84

Precast concrete units; BS 7263; bedded jointed

and pointed in cement mortar. Quadrants

305x305x150 mm 48 no 22.89 1,098.72

Precast concrete units; BS 7263; bedded jointed

and pointed in cement mortar, drop kerbs, 125 x

255mm 96 no 27.91 2,679.36

Foundations to edging etc., Mass concrete,

200 × 100 mm 4,606 m 2.49 11,468.94

Foundations to edging, Mass concrete,

100 × 100 mm haunching, per side 4,606 m 0.79 3,638.74

Foundations to kerbs etc., Mass concrete,

450 × 150 mm 6,137 m 7.41 45,475.17

Bitumen macadam surfacing; BS 4987; binder

course of 20mm open graded aggregate to clause

2.7.1 tables 5-7; surface course of 6mm medium

ground aggregate to clause 2.7.6 tables 32-33;

excluding sub-base. Paved area 60 mm thick;

comprising binder course 40 mm thick surface

course 20 mm thick sloping at 10° of less to be

horizontal

13,222 m² 21.01 277,786.60

Series 1100 Total £442,303.37

Date: Q1 2017 - 18/04/2017






Series 1200: Traffic Signs and Road Markings

Traffic Signs

Standard one post signs; 600 × 450 mm type C1

signs fixed with aluminium clips to 76 mm dia.

3.5 m long aluminium post

23 no 96.01 2,208.23

Standard two post signs; 1200 × 400 mm, signs

fixed back to back to another sign with steel clips,

two 76 mm dia. 3.5 m long aluminium post

13 no 327.12 4,252.56

600 x 450mm type C1 signs fixed with aluminium

clips to existing post4 no 39.87 159.48

Allowance for two post signs; sign >6m² with

aluminium clips, two 40mm dia. 4.0m long

aluminium post

2 no 1,693.34 3,386.68

Allowance for two post signs; sign 4-6m² with

aluminium clips, two 40mm dia. 4.0m long

aluminium post

4 no 1,544.95 6,179.80

Allowance for Permanent Bollards Solar

Illuminated24 no 600.00 14,400.00

Road Markings

Continuous line in white thermoplastic screed with

applied solid glass beads, 200mm wide. As

TSRGD Diagram No. 1001

466 m 1.34 624.68

Intermittent line in white thermoplastic screed with

applied solid glass beads, 100mm wide with

4000mm line and 2000mm gap. As TSRGD

Diagram No. 1004

2,154 m 0.89 1,917.23

Roundabout Junction lines As TSRGD Diagram

No. 1003.1142 m 1.55 220.10

Give Way Triangle 3.75m As TSRGD Diagram

No.10231 no 16.59 16.59

Keep left direction arrows As TSRGD Diagram

No.10144 no 26.21 104.84

200 mm wide with 600 mm line and 0.30 m gap

TSRGD Diagram No. 1008755 m 1.55 1,169.55

Date: Q1 2017 - 18/04/2017






Date: Q1 2017 - 18/04/2017





Double Give way lines - TSRGD 1003 6 m 1.55 9.30

Single give way line - TSRGD 1009 8 m 1.14 8.89

Reflecting road studs 140x254mm rectangular bi-

directional reflecting road stud with white catseye

reflectors

103 no 16.05 1,653.15

Series 1200 Total £36,311.09


Series 1300: Road Lighting Columns and

Brackets, CCTV Masts and Cantilever Masts

Steel road lighting column of 10m nominal height

with flange plate base and with single bracket arm

having a projection of 2.0m incorporating a 250W

SON (P426) lantern; to suit 8 m, 10 m and 12 mcolumns 142 no 1,683.84 239,105.28

Steel road lighting column of 8m nominal height

with flange plate base and with single bracket arm

having a projection of 1.5m incorporating a 250W

SON (P426) lantern; to suit 8 m, 10 m and 12 mcolumns 20 no 1,470.91 29,418.20

Allowance for electrical connections 1 no 50,000.00 50,000.00

Series 1300 Total £318,523.48

Date: Q1 2017 - 18/04/2017






Series 1700: Structural Concrete

In Situ Concrete

In situ grade C30/20 for sign posts. Bases,

footings, pile caps and ground beams; thickness

300-500mm 2.889 m³ 119.22 344.43

In situ grade C30/20 for sign posts. Bases,

footings, pile caps and ground beams; thickness

exceeding 500mm 4.680 m³ 117.52 549.99

Series 1300 Total £894.42





Date: Q1 2017 - 18/04/2017


Series 2700: Accommodation Works, Works

For Statutory Undertakers

BT 1 no 75,283.09 75,283.09

WPD 1 no 640,000.00 640,000.00

W&W 1 no 0.00 0.00

SWW 1 no 0.00 0.00

Series 2700 Total £715,283.09





Date: Q1 2017 - 18/04/2017


Series 3000: Landscaping and Ecology

Seeding and Turfing

Wild flower seeding; Wild Flora mixture BSH ref

WF1 combined with Low maintenance

conservation grass BSH ref A4 (20%:80%); at a

rate of 80 g/m2; by conventional sowing at 10° or

less to the horizontal 4,534 m2

0.91 4125.94

Planting

Excavate trench by machine for hedge and

deposit soil alongside trench, 300 wide × 300 mm

deep 2,300 m 2.77 6371.00

Supply and plant hedging plants; backfill with

excavated topsoil, single row plants at 500 mm

centres 2,300 m 4.45 10235.00

Seeding and Turfing

Grass seeding; by conventional sowing at 10o or

less to the horizontal 13,404 m² 0.77 10320.97


Grass seeding; by conventional sowing at 10o or

less to the horizontal 4,876 m² 0.77 3754.52

Series 3000 Total £34,807.43


Date: Q1 2017 - 18/04/2017








Date: Q1 2017 - 18/04/2017

Rates used have been taken from Spon's Civil Engineering & Highway Works Price Book 2015

29th Edition

Assumptions

General

Optimism Bias taken from Green Book Supplementary Guidance, Table 1 Recommended Adjustment Rates -

Standard Civil Engineering Project

Assumed that land costs will be 0 as all land will be provided by developers

200 Series

Timber post & Four rail fence : Fence runs parallel to hedge line. No item exist for timber post - Chain link with

one wire string.

Dry stone boundary wall: Assume 1.5mx1.5m wide stone boundary wall

Gully grating & frame: No tip off site used higher rate i.e Re-use

Assumed that site clearance for Ch 400-510 will be undertaken during works for Ch0-400

Assumed that site clearance for Ch 1825-2200 will be undertaken during works for A388 Roundabout

300 Series

Timber fencing to be used to delineate boundary of highway land and fields

400 Series

Vehicle restraint barrier to be used where the proposed road crosses the watercourse. The VRS is to span in this

area for the duration of the steep earthworks.

500 Series

A price for a polypropylene pipe was not available, hence the price for a vertified clay play was used.

Valve chamber includes a price for the chamber (labour, plant and material) and valve (material only) combined.

Price build up for drain pipe includes trench construction to a chosen depth, as well as bedding and surround

material.

An average of 8m lengths have been used for the 150mm dia. gully connections.

There is no specified price within SPONS for a complex control chamber, therefore the cost has been accounted

for by utilising a 2.4m dia. chamber and two penstocks.

Assumed that carrier drainage for Ch 400-510 will be undertaken during works for Ch0-400

Assumed that carrier drainage for Ch 1825-2200 will be undertaken during works for A388 Roundabout

600 Series

Excavation of the Class 5A material is assumed to be 300mm.

It is assumed that 75% of the excavated non-class 5A material is acceptable as fill material

It is assumed that 70% of the excavated class 5A material is acceptable as fill material

It is assumed that where the existing highway is made redundant and will be in the verge , it will be perforated

ready for topsoiling.

The class 6F capping layer has been given a 200mm overspill each side of the pavement.

The capping layer assumed to be150mm thick for 75% of the site and 350mm thick for the remaining 25%

The waste disposed from site is assumed to go to the landfill in Vidor Lean Quarry, Liskeard. Using A roads to the

site this distance is 57km from the scheme.

Due to no price being available for the bentonite liner of the pond, the cost has been accounted for by using a

precast concrete lining.

Assumed that earthworks exc capping for Ch 400-510 will be undertaken during works for Ch0-400

Assumed that earthworks exc capping for Ch 1825-2200 will be undertaken during works for A388 Roundabout

700 Series

It is assumed that the access track for the ponds is to be made using a 300mm dp sub-base construction.





Date: Q1 2017 - 18/04/2017

Rates used have been taken from Spon's Civil Engineering & Highway Works Price Book 2015

29th Edition

AssumptionsThe pavement construction for a 40mm surface and 60mm binder course was not available for pricing within

SPONS thus 50mm layers were used for both suface and binder courses.

1100 Series

Traffic islands to consist of 4 quadrants

The footpath surfacing in line with CC HCD 11/107 should have a 60mm binder and 25mm surface course. As no

price exists within SPONS for this construction, a 40mm binder and 20mm surface courses has been used.

1200 Series

Traffic signs accounted for are flags on traffic islands at the roundabouts, repeating footway/cycleway signs @

183m c/c and also on the A388, roundabout advance direction signs and new roundabout ahead signs

Two bollards assumed per roundaboy

New roundabout signs assumed to fix on post of roundabout advanced direction sign.

Road studs to tie into existing A388 road along with double solid white lines

Existing junction will be repainted this includes, give way triangle, double give way lines and a give way line.

4 Deflection arrows have been used within Ch960 - 1820, due to two hazardous areas within this section. These

are on the approach to the roundabout and on the approach to the bend.

1300 Series

Street lighting assumed to be placed at 30m intervals on both sides of the carriageway.

Street lighting columns assumed to be 10m nominal height for the new loop road and have a 8m height where the

new road intercept the existing on both Landlake and Hurdon Road.

1700 Series

Footway/cycleway and speed limit signs assumed to have 300mmx300mmx650mmdp foundations

Flags on roundabouts assumed to have 1000mmx650mmx600mmdp foundations

Advance direction signs assumed to have 350mmx350mmx1800mmdp foundations

3000 Series

Rates for Wild Flora seeding seems high therefore have used Hydraulic mulch seed rate used i

Assumed that the northen verge will be planted with hedging plantsAssumed that the southern verge will have wild flora seeding

Footway

Traffic Island

Uncontrolled Buff Tactile

Verge

Embankment Slope

Cutting Slope

Buff Strip

1 2

3

NOTES:

1. All dimensions are in metres unless otherwise stated.

2. Do not scale from this drawing.

3. The information contained in this drawing has been

reproduced from plans which have no guarantee or

warranty as to their correctness or accuracy.

Therefore information should be used as a general

guide only.

KEY:

This drawing is Copyright. It should not be relied on

or used in circumstances other than those for which it

was originally prepared and for which Cornwall Council

was originally commissioned. Cornwall Council accepts

no responsibility for this drawing to any party other than

the person(s) by whom it was commissioned.

REV DATE NATURE OF REVISION

REVISIONS

- FIRST ISSUE

SOLUTIONS

Filename: \\uk.wspgroup.com\central Data\Projects\700283xx\70028324 - Launceston Loop Road\E Models And Drawings\ACAD\Working\70028324-0101.dwgPlot Date: 18.02.16

DRAWING NO: REVISION:

SCALE:

DRAWN BY:

CHECKED: APPROVED:

PROJECT MANAGER:

DRAWING TITLE:

PROJECT:

T5070-006

LAUNCESTON SOUTHERN LOOP

ROAD

GENERAL ARRANGEMENT

SHEET 1 OF 3

1:1000 @ A1

TP SB

TP 06/04/17 TP 06/04/17

70028324-0101 A

23/03/17

A 06/04/17DRAINAGE PONDS ADDED

Crown copyright and database rights 2017 Ordnance Survey 100049047.

1 2

3

Footway

Traffic Island


Verge

Embankment Slope

Cutting Slope

Buff Strip

NOTES:







guide only.

KEY:








REVISIONS

- FIRST ISSUE

SOLUTIONS



SCALE:

DRAWN BY:

CHECKED: APPROVED:

PROJECT MANAGER:

DRAWING TITLE:

PROJECT:

T5070-006


ROAD

GENERAL ARRANGEMENT

SHEET 2 OF 3

1:1000 @ A1

TP SB

TP 06/04/17 TP 23/03/17

70028324-0102 -

23/03/17



1 2

3

Footway

Traffic Island


Verge

Embankment Slope

Cutting Slope

Buff Strip

NOTES:







guide only.

KEY:








REVISIONS

- FIRST ISSUE

SOLUTIONS



SCALE:

DRAWN BY:

CHECKED: APPROVED:

PROJECT MANAGER:

DRAWING TITLE:

PROJECT:

T5070-006


ROAD

GENERAL ARRANGEMENT

SHEET 3 OF 3

1:1000 @ A1

TP SB

TP 06/04/17 TP 06/04/17

70028324-0103 -

23/03/17



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