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Mark Wearen – Associate Director, Bruce ShawMSCSI MRICS MCInstCES MCIOB
March 2013
An introduction to Civil Engineering Cost Management
March 2013
Bruce Shaw an internationally-acclaimed group of 300construction professionals.
We service clients in 150 cities in over 40 countries.
Highest standards of quantity surveying, project management andconsultancy to the global construction industry.
Global Expertise, Local Knowledge
An introduction to Civil EngineeringCost Management
March 2013
ISO 9001/14001 accredited
Dedicated Specialist Divisions Include:
Cost Management / Quantity Surveying - Civils/ Industrial/Retail/ Leisure/ Healthcare/ Education/ Residential/MEP
Project Management Procurement Insurance Program Management Health & Safety
Global Expertise, Local Knowledge
An introduction to Civil EngineeringCost Management
Global Construction Consultants
Office Locations20 Global Offices throughoutthe GCC, Europe, USA & Asia Pacific
Project Locations150 cities in over 40 countries
March 2013
Key Clients Include…
March 2013
What is Civil Engineering ?
An introduction to Civil EngineeringCost Management
March 2013
What is Civil Engineering ?
‘The whole of non-military engineering at the timing of the founding of the ICE in 1818, but nowexcluding chemical, electrical, electronic, marine, mechanical engineering etc…it includes airfields,bridges, canals, docks, foundations, harbours, offshore construction, railways, river basis management,roads, sewage treatment, soil mechanics, structural design, traffic engineering, tunnels, water supplyetc…’
Penguin Dictionary of Civil Engineering, Fourth Edition
‘…civil engineering (the branch of engineering concerned with the design and construction of suchpublic works as dams or bridges)…’
http://wordnetweb.princeton.edu/perl/webwn?s=civil%20engineering
‘Civil engineering includes the planning, designing, construction, and maintenance of structures andaltering geography to suit human needs. Some of the numerous subdivisions are transportation (e.g.,railroad facilities and highways); hydraulics (e.g., river control, irrigation, swamp draining, water supply,and sewage disposal); and structures (e.g., buildings, bridges, and tunnels).’
http://www.reference.com/browse/engineering
‘The technical design and construction of public works (buildings, roads, harbours, public greens ...)and/or technically equivalent private (usually corporate) ones’
http://en.wiktionary.org/wiki/civil_engineering
An introduction to Civil EngineeringCost Management
March 2013
An introduction to Civil EngineeringCost Management
Sectors
Highways
Railways – Light and Heavy Rail
Marine Engineering – Ports and Coastal Protection
Airports – Runway Construction
Energy – Power Distribution and Generation
Utilities
Environmental – Water and Waste (e.g. Landfill)
Site Development
ESTIMATING – APPROACHES AND KEY RISKS
An introduction to Civil EngineeringCost Management
March 2013
An introduction to Civil EngineeringCost Management
Estimating (1 of 4)
Identify Key Features and Risks
Key Quantities – fewer items…less transparent…sub-division
Method Related Charges – ‘not proportional to the quantities’*
Temporary Works
Preliminaries
Bulk Earthworks – Materials Management
Project Specific Variables - RESOURCES AND TIME – whatproblem does this pose ?
*CESMM3 Handbook, Section 7, Para 5
March 2013
Estimating (2 of 4)
Key Risks Location - Access Ground Conditions / Unforeseen Obstructions – Proportion
of Work Below Ground… Archaeology Utilities / Statutory Undertakers Possessions – Railways/Ports/Roads Environmental Inflation Weather – Seasonal Impacts
An introduction to Civil EngineeringCost Management
March 2013
Estimating (3 of 4)
Bulk Earthworks
Materials Classifications
Earthworks Balance - Equation
Import – Borrow Pits and Quarries
Bulking
Mass Haul
Cycle Times
Weather – Materials and Productivity
An introduction to Civil EngineeringCost Management
March 2013
Estimating (4 of 4)
Measurement Software – Areas and Volumes
Atlas SCC
Trimble Terramodel
LSS DTM Software
Earth
Mudshark
Design Software – Volumes
Bentley MX Moss
CivilCad
An introduction to Civil EngineeringCost Management
March 2013
Estimating – Measurement Example
Bulk Earthworks 100m x 100m site – toll plaza approach – total plan area 10000 m2 Site is split level – 2 m differential at mid-point – could be sloping 100mm Topsoil 100mm unsuitable/unacceptable (US) 50% of balance is Hard Material – Granite (no weathered material) – unsuitable
in it’s natural state – 100% suitable for processing as capping/suitable Balance is suitable/acceptable (general fill) Soft Spots – 100m3 – spread evenly around the site – filled with suitable (<25m3
– US if greater) 500mm Capping (Rockfill/Hardcore) Final Surface – Formation – Average level plus 1 m Ignore transition detail Assume no Bulking
An introduction to Civil EngineeringCost Management
March 2013
Estimating & CM Approach - Bulk Earthworks Example
Proposed Level Existing Level
2 m
100 m
Site Cross-Section
An introduction to Civil EngineeringCost Management
March 2013
Estimating & CM Approach – BULK EARTHWORKS EXAMPLE
An introduction to Civil EngineeringCost Management
AveDepth
Width CSA Length Volume Notes
m m m2 m m3
Cutting Cut TS 0.1 50 5 100 500US Soft 0.1 50 5 100 500US Hard Rock 0.15 50 7.5 100 750 Capping DisplacementSU 0.15 50 7.5 100 750 Capping DisplacementSoft Spots 50 50% Allocation
Total Dig Volume 2550
Fill Capping 0.5 50 25 100 2500 Capping MaterialVoid 0 50 0 100 0Embankment Seat TS 0
US 0Soft Spots 50 Suitable Material
Total Fill Volume 2550
Fill (Embankment) Cut TS 0.1 50 5 100 500 Topsoil DepthUS Soft 0.1 50 5 100 500 USUS Hard Rock 0 50 0 100 0SU 0 50 0 100 0Soft Spots 50 50% Allocation
Total Dig Volume 1050
Fill Capping 0.5 50 25 100 2500Suitable (Void) 1.5 50 75 100 7500 Underside of Capping to EGLEmbankment Seat TS 500
US 500Soft Spots 50
Total Fill Volume 11050
March 2013
Estimating & CM Approach – BULK EARTHWORKS EXAMPLE
An introduction to Civil EngineeringCost Management
AveDepth
Width CSA Length Volume Notes
m m m2 m m3
Topoil Strip 1000
Excavation Suitable 750Unsuitable 1750
EO Rock 750
Processing Rock to Capping 750
Disposal Topsoil 1000 Typically for Resoiling/StockpilingSuitable 0 All utilisedUnsuitable 1000 Excavated less Processed
Import Capping 4250 Total less ProcessedSuitable 6750 Total less excavated
Compaction 13600 Total Fill - Capping plus Suitable
Soft Spots 100 Measured Seperately
QUANTIFYING CONTINGENCY
An introduction to Civil EngineeringCost Management
An introduction to Civil EngineeringCost Management
March 2013
Risk Management and Contingency
Guess
Historical Precedent
Defined Allowances (e.g. Optimism Bias)
Quantified Risk Analysis
March 2013
An introduction to Civil EngineeringCost Management
The British Department forTransport Procedures for Dealingwith Optimism Bias in TransportPlanning - Guidance DocumentJune 2004
Risk Contingency -Optimism Bias
Post Contract Cost Management
An introduction to Civil EngineeringCost Management
An introduction to Civil EngineeringCost Management
March 2013
Post Contract Cost Management
Read and Apply the Contract
The 3 R’s…..Records Records and more Records
As-Built Information – Quantities / Surveys / Classifications
Returns v Allocation Sheets
Photo and Video Records – High Definition
Site Diaries
Progress Reports
Cost Management tools – Registers / Scott Schedule (see NRA CAG)
FORMS OF CONTRACT
An introduction to Civil EngineeringCost Management
An introduction to Civil EngineeringCost Management
March 2013
Forms of Contract
Ireland IEI 3rd Edition 1980 Rev and Reprinted Oct 1990 PWC – Minor Works and Civil Engineering Options
International FIDIC Suite (1999) – Red and Yellow Books ICE NEC3 Suite of Contracts – Options A, B and C IChemE Suite of Contracts – ‘Brown Book’
METHODS OF MEASUREMENT
An introduction to Civil EngineeringCost Management
An introduction to Civil EngineeringCost Management
March 2013
Methods of Measurement
ARM
SMM
CESMM3 / CESMM4 (recently published)
NRA Method of Measurement
MMRB (Roads and Bridges)
MMHW (Highway Works)
POMI (Principles of Measurement International)
USEFUL LINKS
An introduction to Civil EngineeringCost Management
An introduction to Civil EngineeringCost Management
March 2013
Useful Links :
Contract Administration on Public Works Projects:http://www.nra.ie/Publications/ContractAdministrationGuidelineswww.constructionprocurement.ie (CWMF)
Contracts Overview :http://fidic.org/node/149
http://www.icheme.org/resources/forms_of_contract/history.aspx
http://www.neccontract.com/about/ContractDownloads.asp
http://www.out-law.com/en/topics/projects--construction/construction-standard-form-contracts/
Risk Analysis :http://www.palisade.com/risk/
An introduction to Civil EngineeringCost Management
March 2013
Useful Links :
Rates and Prices : NRA Schedule of Rates
http://www.nra.ie/Publications/DownloadableDocumentation/CostEstimationDocumentation/file,10429,en.pdf
CECA Schedule of Dayworks Rates (previously the FCEC)http://www.ceca.co.uk/publications/ceca-schedules-of-dayworks-carried-out-incidental-to-contract-work-(august-2011).aspx
Professional Institutions: Society of Chartered Surveyors Ireland http://www.scsi.ie Chartered Institution of Civil Engineering Surveyors http://www.cices.org/ Engineers Ireland http://www.ei.ie Institution of Civil Engineers http://www.ice.org.uk/
An introduction to Civil EngineeringCost Management
March 2013
Useful Links :
Plant and Equipment – Productivity: Caterpillar Handbook
http://www.warrencat.com/images/pdf/CaterpillarPerformanceHandbook42.pdf
Further Education DIT Masters in Applied Construction Cost Management
http://www.dit.ie/postgrad/programmes/dt164mscinappliedconstructioncostmanagement/
Civil Engineering Experience
An introduction to Civil EngineeringCost Management
Hilton Barbados600Nr Beds
Some of our Projects…
March 2013
East West InterconnectorAghada Power Station
NRA Service Areas
DolWin1 Baltic Cable
New Black Sea Port
Metro North
Bord Gais Wind Farms
Abu Dhabi International AirportM50 Widening
Saudi Aramco
Dublin Port Tunnel
Irish Rail Coastals
Greater Dublin Area Transportation Strategy
Bruce Shaw Engineering
Mark Wearen – Associate Director, Bruce ShawMSCSI MRICS MCInstCES MCIOB
March 2013
An introduction to Civil Engineering Cost Management
Thank You
