PS&E – Plans, specifications and estimate Estimating PS&E – Plans, specifications and estimate

Types of Estimates Ball-Park (Planning phase) Preliminary (Design Report/EIS) Detailed (PS&E---Detailed Design)

Estimate Quality Good book-keeping Accurate backup of quantities Familiarity w/ project Experience

Estimating Procedure List all item numbers-plans and similar plans Estimate quantities and prepare a backup for each item # Assign prices to each item (WAIPR) Lump sum price analysis Summary of quantities Add contingency Summarize final costs

Item Numbers Referenced to spec book Examples: 201.07 Clearing and Grubbing 203.xxxx Grade and Reshape Ditches 304.xx Subbase 610.0203 Establish Turf 634.01 Survey and Stakeout *Special specifications—General or Special (must be approved)

Units Unit abbreviations Definition LS Lump Sum EA Each CY Cubic Yard SY Square Yard LF Linear Feet TN Ton MO Month

Units-Metric Unit abbreviations Definition CM Cubic Meters SQM Square meters MT Metric Ton KG Kilograms M Meters

Specifications https://www.dot.ny.gov/main/business- center/engineering/specifications

Specifications-Example 201.06

Specifications-Example 201.06

Pay Item Catalog (PIC) https://www.dot.ny.gov/pic

Weighted Average Item Price Report (WAIPR) https://www.dot.ny.gov/divisions/engineering/design/dqab/waipr

WAIPR Example-201.07

Special Spec Repository https://www.dot.ny.gov/spec-repository-us/

Contingency Added to estimate to account for unknowns Usually a percentage of final cost

Cost Estimate Example Item # Description Unit QTY Price Subtotal 201.0601 Clear & Grub LS 1.0 $12,500.00 203.0100 Earth Cut & Emb CY 14,545.0 $12.00 $174,540.00 10209.0100 Bale Dikes LF 42.0 $7.50 $315.00 403.1100 Asph Base Course TN 6392.0 $38.00 $242,896.00 603.7303 24” RCP End Sec EA 4.0 $700.00 $2,800.00 637.0701 Office MO 6 $1,000.00 $6,000.00 645.2140 Traffic Sign 8 $170.00 $1,360.00

Backup for Estimate Example ITEM 640 Backup for Estimate Example ITEM 640.0102 (White Paint Reflective Paint Stripes) 2 Shoulder Stripes Sta 26+44 to Sta 30+92 2*448’ = 896’ Say 900’

Asphalt – English Tons .06865 Tons per Cubic Foot (Base) .07525 Tons per Cubic Foot (Binder) .07265 Tons per Cubic Foot (Top-6F) Old Marshall Design New Superpave?????

Lump Sum Price Analysis Estimate for items paid as a “Lump Sum” Includes: Labor Materials Equipment Rental costs Profit and Overhead Typical lump sum items: Clearing and Grubbing Survey and Stakeout Temporary Traffic Signals

Lump Sum Analysis Example Item 619.13 (Temporary Traffic Signal) Labor Costs Backhoe Operator-$30.05/hr Electrician-$32.99/hr Laborer-$22.95/hr Prevailing Wages http://wpp.labor.state.ny.us/wpp/publicViewPWChanges.do?method=showIt Installation and Removal of Temp. Poles 1 Backhoe Operator $30.05/hr * 16 hours = 2 Laborers @ $22.95/hr * 16 hours = Installation and Removal of Temp. Signal Heads 1 Electrician @ $32.99/hr * 16 hours = 2 Laborer@ $22.95/hr * 16 hours = Installation and Removal of Controller 1 Electrician @ $32.99 * 16 hours = 1 Laborer @ $22.95 * 16 hours =

Lump Sum Analysis Example-Cont. Item 619.13 (Temporary Traffic Signal) Materials Temporary Poles 4 @ $1,300.00 each Temporary Signal Heads 4 @ $250.00 each Controller, Fixed Time 1@ $1,000.00 Misc. Hardwire and Wire $1,000.00 Equipment (Installation and Removal) 1 Bucket Truck @ $18.00/hr * 24 hours 1 Backhoe @ $35.00/hr * 24 hours Profit and Overhead (20%)

Estimate Shares Highway Bridge Utilities Different Counties

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 Lowest bidder gets the contract