Cost by state
Construction unit costs in Idaho
Median awarded unit prices for the 24 most-bid items on Idaho public projects, from winning bids in agency bid tabulations.
| Item | Per | Median | Middle half | Winning bids |
|---|---|---|---|---|
| Longitudinal Pavement Marking - Waterborne | linear foot | $0.2 | $0.15 – $0.35 | 71 |
| Temporary Traffic Control Signs | square foot | $7.00 | $5.49 – $12.15 | 60 |
| Temporary Traffic Control Maintenance | hour | $60.00 | $50.00 – $70.50 | 52 |
| CSS-1 Diluted Emulsified Asphalt FOR Tack Coat | gallon | $3.30 | $1.50 – $4.38 | 51 |
| Drums | each | $11.00 | $9.29 – $30.00 | 51 |
| Excavation | cubic yard | $19.10 | $15.57 – $24.62 | 44 |
| Portable Changeable Message Sign (pcms) | day | $65.85 | $50.00 – $75.06 | 44 |
| Weighted Base Tubular Markers | each | $7.50 | $4.58 – $13.05 | 43 |
| 3/4" Aggregate Type B FOR Base | ton | $32.95 | $25.00 – $45.50 | 40 |
| Flagger Control | hour | $58.38 | $49.00 – $64.00 | 40 |
| Barricade Type 3 | each | $61.25 | $50.12 – $92.00 | 38 |
| Fiber Wattle | linear foot | $3.75 | $3.00 – $5.00 | 35 |
| Removal of Sign | each | $150.00 | $100.00 – $200.00 | 33 |
| Inlet Protection | each | $100.00 | $84.50 – $157.50 | 31 |
| Transverse, Word, Symbol, AND Arrow Pavement Markings - Preformed Thermoplastic | square foot | $13.00 | $9.12 – $16.27 | 31 |
| Approach | each | $2,160 | $1,200 – $3,000 | 29 |
| Superpave HMA Pavement Including Asphalt & Additives Class SP-3 | ton | $145.00 | $115.00 – $178.77 | 29 |
| Sign Type B-1 | square foot | $33.50 | $24.50 – $45.25 | 28 |
| Cold Milling | square yard | $4.08 | $2.38 – $9.86 | 28 |
| W-beam Guardrail | linear foot | $28.00 | $24.00 – $36.00 | 25 |
| Adjust Manhole Covers | each | $1,140 | $910.00 – $1,600 | 21 |
| Granular Subbase | ton | $24.00 | $16.60 – $34.50 | 21 |
| Removal of Guardrail | linear foot | $2.33 | $2.00 – $5.04 | 20 |
| Removal OF Curb & Gutter | linear foot | $5.00 | $4.40 – $10.00 | 20 |
Agencies in Idaho
- ITD: 4,558 winning prices