PSE Plans Specifications and Estimate 1 Contract Letting

PS&E Plans, Specifications and Estimate 1

Contract Letting • Plans-Show what is being built • Specifications-Show project is to be built • Estimate-Show quantity estimates (not $) 2

Plans: Title Sheet Index Typical Sections Summary of quantities Plans/Profiles MJ Misc. Tables/details Earthwork Summary Sheets 3

Plans continued: Signs Traffic Signal plans Lighting plans Pavement marking plans Utility plans Large Culvert Details Retaining Walls Bridge Plans 4

Specifications-not std. specs • Special specs must be added to proposal • Main Office specs (already approved) • Regional Specs (must be written/approved prior to letting) 5

Standard Sheets There are many standard sheets: -Earthwork -Guide Railing -Signs -Culverts -Bridge Design Details (BDD) Applicable ones must be listed 6

Regional Spec Examples Water Main Work Utility Work Special Items New Materials 7

Special Notes Try to avoid too many (let standard specs handle details) Examples include permit conditions or items to be salvaged, etc. 8

Special Notes Try to avoid too many (let standard specs handle details) Examples include permit conditions or items to be salvaged, etc. 9

Other Info available to bidder Cross Sections Utility/drainage estimate sheets Sign Face Layout shets Subsurface soils investigation reports Other Special Reports 10

Procedures for modifying PS&E Errors Additions (minor) Clarification 11

Report on Designer Location of Project Table of Lengths Type of Construction Road History Adjoining Highways Soils Investigations Grades Stopping Sight Distances Alignment Drainage Right-of-Way 12

Report on Design-Continued Sidewalks Sanitary Sewers Utilities Permits and Agreements Special Situations Structures MPT TCD Fencing Pricing (Lump Sum Analysis) Salvage 13

Engineer’s Estimate Quantities included in plans Engineer’s estimate not given to contractor Prices not available to contractor—each contractor provides their own bid 14

Estimate Shares Highway Bridge Utilities Different Counties 15

Estimating Steps • List all item numbers – from plans & other • • similar plans Estimate quantities and provide detailed backup Assign prices to each item – from similar jobs or average bid price information Provide lump sum price analysis (personnel, equipt. , time, wage rates, rental, etc. ) Calculate final estimated prices 16

Final Exam Review • Horizontal Curves • Rational Method • Manning’s Equation • Cross-Sections (Avg End-Area Method) • CBC/Retaining Walls (Understanding Standard Sheets/Dwg’s/Bar Lists/Estimates) • Lighting/Guide Railing 17

Final Exam Review • Open book/open notes/ • Can use computer (but monitored) • No cell phones; no old tests • Show all work • Don’t forget units 18