cost estimation strategies for keeping track of the vastness presented by: david lake, p.e. roadway...
DESCRIPTION
Agenda 1. Quantities 2. Estimate 3. Contract Awarding 4. ConclusionTRANSCRIPT
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Cost EstimationStrategies for Keeping Track of
the Vastness
Presented by:David Lake, P.E.Roadway DesignerNevada Department of TransportationEmail: [email protected]
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Introduction1. How many bid items do you think
were used on US95 2A?2. How many sources/divisions
contribute to the estimate?3. What are some good strategies to
keep track of bid items?
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Agenda
1. Quantities2. Estimate3. Contract
Awarding 4. Conclusion
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Roadway Quantity Breakout & Calculations
Master Quantities Roadway Breakout
Structure List
Barrier Rail Length of Need
ADA (driveways) Areas/ Cross Sec
ADA (Sidewalk) Areas/ Cross Sec
3 sheets
Earthwork Cross Sections
Structure Sections Station/ Offset
Geotextile Locations/ Areas
Traffic Control
Sign Matrix TC phasing
Device Matrix TC phasing
Detour Cross Sections
Striping Excel Calcs Areas
Compiled Estimate Breakouts Sub-Breakouts Excel Calculators CADD Calculations
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Other Division’s Breakouts and Calculations
Master Quantities
Hydraulics
Ditch & Channels Excel Calcs DGN
Culverts Pipe matrix CS/ Lengths
ITS CMS CMS matrix Conduit
Signs Cantilever Sign Matrix CS
Lighting High Mast Lighting Matrix Area
L&A Decorative Rock Area Designations Areas
Structures
MSE walls
Wall Matrix Profiles/ Volumes
Excavation CS
Bridge Resurfacing Deck Inventory Areas
Sound Walls SW List ProfilesCCRFC
Compiled Estimate Breakouts Sub-Breakouts Excel Calculators CADD Calculations
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CADD file• Removal of
Composite surface
Excel Calculator
s• Driveway Calculator
Sub Breakout
• Structure List
Roadway Breakout
• Master Quantities
~Look at Actual Quantity
Calculators~
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State’s Estimate Program• Integrated Project Development (iPD)
Estimator Specialist
• Ensure Correct Coding
• Handles Permit funding
• Oversees Estimate Status
Roadway Designer
• Creates Estimate
• Inputs Quantities
• Creates Breakouts
• Obligates Funding
Manager
• Unit Price Checker
Special Provisions Writer
• Approve Bid items
Finical Management
• Oversees preliminary costs
• Reserves money sources
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Analyzing Different Types of Estimate
Engineers Final Estimate
Estimate Breakout Items
Has bid item descriptors
Contract Work Item Price Report
Shows compiled Breakouts
List all bid items and prices~Look at Actual Estimates~
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Contract Awarding• Low bidder gets the job
• Various Types of Submittals:
• change order?
• What is a supplemental?
• What is a revision?
~Look at Actual Bid Tab~
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Conclusion• Tips to keep track of quantities
• Structure that builds in expectancy
• Ability to update a quantity conveniently
• Linked quantities
• Estimates have transparency to all divisions, common language
• Contract Awarding
• Low Bidder gets the job
• Contractor’s are looking to make the must money, it’s a business.
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Questions?