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As of Nov 5, 2026, 25 public construction bid results in Idaho list their bidders; 60 firms appear on them and 3 construction bids are open now.
Bid tabulations published by Idaho agencies, counties, cities, school districts and utilities for construction work of $100,000 or more: every bidder and total, newest first.
Construction bids in Idaho decided in the last 12 months with bidders listed.
Distinct firms on those tabulations.
Most active: Knife River Corporation (9)With a week or more left to respond.
Newest 25 of 25 results with bidders published. Apparent low bidder is not always the award.
| Agency | Job | Decided | Low bidder | Low bid | Other bidders | Bids |
|---|---|---|---|---|---|---|
| Ada County Highway District | Franklin Road, McDermott Road to Black Cat Road | Oct 22, 2026 | Nampa Paving & Asphalt CO | $8,400,187 | Suncore Construction and Materials, Inc, Capital Paving Company, Inc, Staker & Parson Companies DBA Idaho Materials & Construction, Knife River Corporation - Mountain West and 2 more | 7 |
| Ada County Highway District | Linder Road, State Street to Floating Feather Road / Landscape | Oct 22, 2026 | Franz Witte Landscape Contracting, Inc | $1,252,556 | Sunshine Landscape, Clearwater Landscape, Treasure Valley Landscape | 4 |
| Ada County Highway District | Stoddard Road, Victory Road to Overland Road | Oct 15, 2026 | Staker & Parson Companies DBA Idaho Materials & Construction | $4,498,378 | Capital Paving Company, Inc, Knife River Corporation - Mountain West, Suncore Construction and Materials, Inc, Granite Excavation Inc and 1 more | 6 |
| Ada County Highway District | Allumbaugh Street, Franklin Road to Douglas Street | Oct 15, 2026 | Knife River Corporation - Mountain West | $1,961,071 | Staker & Parson Companies DBA Idaho Materials & Construction, Concrete Placing Company, Inc, Granite Construction Co | 4 |
| Ada County Highway District | 2027 Portland Cement Concrete Materials | Oct 15, 2026 | Knife River Corporation - Mountain West | $216,715 | Suncore Construction and Materials Inc, INTERSTATE FL LLC | 3 |
| Ada County Highway District | FY27 Stormwater Basin and Swale Vegetation Management Services | Sep 16, 2026 | Avalon Landscapes | $414,652 | 1 | |
| Ada County Highway District | McMillan Road and McDermott Road Signal - Rebid | Sep 2, 2026 | JCG Excavation LLC | $279,551 | Sunnyridge Construction, LLC, Paul Construction Inc, Hawkeye Builders, Inc, Knife River Corporation - Mountain West | 5 |
| Ada County Highway District | FY27 Sodium Chloride Road Salt | Sep 2, 2026 | Compass Minerals America Inc | $237,081 | SaltWorx Inc, EnviroTech Services, LLC | 3 |
| Ada County Highway District | Eckert Road Bridges 2147 and 2148– Boise River and Ridenbaugh Canal, Eckert Road… | Sep 2, 2026 | Concrete Placing Company, Inc | $19,350,708 | McAlvain Civil Constructors INC, IMCO General Construction, Inc, Knife River Corporation - Mountain West, Stellar J Corporation and 2 more | 7 |
| Ada County Highway District | HVAC System Replacement – ACHD Administration Building | Aug 12, 2026 | ACCO Engineered Systems | $3,347,324 | Hobson Fabricating Corp, Harris Company | 3 |
| Ada County Highway District | FY27 Liquid Asphalt Material | Jul 29, 2026 | Ergon Asphalt & Emulsions, Inc | $7,092,150 | Idaho Asphalt Supply, Inc | 2 |
| Ada County Highway District | FY26 Large Excavator | Jul 15, 2026 | Peak JCB | $343,129 | Coastline Equipment, Western States Equipment Company | 3 |
| Ada County Highway District | Deep Canyon Drive - High Country Way to Highway 16 | Apr 24, 2026 | Capital Paving Company, Inc | $745,049 | Suncore Construction and Materials, Inc, Granite Excavation Inc, Compliance Solutions & Contracting LLC, Knife River Corporation - Mountain West and 2 more | 7 |
| Ada County Highway District | Linder Road Overpass, Overland Road to Franklin Road | Apr 15, 2026 | Suncore Construction and Materials, Inc | $18,399,953 | Knife River Corporation - Mountain West, Concrete Placing Company, Inc, IMCO General Construction, Inc, Staker & Parson Companies DBA Idaho Materials & Construction | 5 |
| Ada County Highway District | 13th Street & Washington Street RRFB | Mar 25, 2026 | JCG Excavation LLC | $297,190 | Paul Construction Inc, Toll Excavation and Septic, Western Refinery Services, Sunnyridge Construction, LLC and 2 more | 7 |
| Ada County Highway District | Cole Road, Victory Road to Overland Road | Mar 4, 2026 | Knife River Corporation - Mountain West | $2,951,660 | Staker & Parson Companies DBA Idaho Materials & Construction, Capital Paving Company, Inc | 3 |
| Ada County Highway District | Locust Grove Road and Palermo Drive Pedestrian Improvements | Jan 28, 2026 | JCG Excavation LLC | $178,478 | Gaia Earthsmithing LLC, Capital Paving Company, Inc, Capitol Concrete Construction, LLC, LaRiviere, Inc and 8 more | 13 |
| Ada County Highway District | Bridge Improvements and Repairs: Bethel #2065, Healey #2149 and Vista Bridge… | Jan 7, 2026 | Braun-Jensen, Inc | $2,008,000 | Combined Construction Inc | 2 |
| Ada County Highway District | FY26 Traffic Signal Materials - Schedule C | Dec 19, 2025 | ESTIMATE | $115,800 | 1 | |
| Ada County Highway District | FY26 Traffic Signal Cabinets | Nov 5, 2025 | Swarco McCain | $276,950 | Econolite Control Products Inc, Altitude Signal, LLC, Western Systems, Inc | 4 |
| Ada County Highway District | Eagle Road, Lake Hazel Road to Amity Road Landscape and Irrigation | Nov 5, 2025 | Clearwater Landscape | $579,876 | idaho site works, llc | 2 |
| Ada County Highway District | FY26 Traffic Signal Poles and Mast Arms | Nov 5, 2025 | ESTIMATE | $1,225,700 | 1 | |
| Ada County Highway District | FY26 Traffic Signal Materials | Nov 5, 2025 | PedSafety | $132,375 | Econolite Control Products Inc, Altitude Signal, LLC, Western Systems, Inc, Swarco McCain | 5 |
| Ada County Highway District | Liberty Street, Douglas Street to Denton Street - Rebid | Nov 5, 2025 | Compliance Solutions & Contracting LLC | $1,838,720 | Capital Paving Company, Inc, LaRiviere Inc, Sunnyridge Construction, LLC, Tapani, Inc and 3 more | 8 |
| Ada County Highway District | FY2026 Roadside and Pond Herbicide Services | Oct 22, 2025 | Doughboys lawn care | $256,720 | DeAngelo Contracting Services, LLC, NC Services | 3 |
Agencies in Idaho with 3 or more tabulations on record: every result they published, who bids there and how crowded their jobs are.
Construction bids in Idaho still taking responses, closing soonest first; each links to the agency's board.
| Bid | Agency | Due |
|---|---|---|
| 2027 Roadside, Sidewalk, and Basin Herbicide Application Services | Ada County Highway District | Nov 18, 2026 13 days |
| FY27 Traffic Signal Materials | Ada County Highway District | Nov 18, 2026 13 days |
| Ten Mile Road and Deer Flat Road | Ada County Highway District | Nov 18, 2026 13 days |
Knife River Corporation - Mountain West (9 bids, 3 low); Suncore Construction and Materials, Inc (6 bids, 1 low); Capital Paving Company, Inc (6 bids, 1 low); Staker & Parson Companies DBA Idaho Materials & Construction (6 bids, 1 low); Sunnyridge Construction, LLC (5 bids, 0 low).
Ada County Highway District, Franklin Road, McDermott Road to Black Cat Road: low bid $8,400,187 by Nampa Paving & Asphalt CO; Ada County Highway District, Linder Road, State Street to Floating Feather Road…: low bid $1,252,556 by Franz Witte Landscape Contracting, Inc; Ada County Highway District, Stoddard Road, Victory Road to Overland Road: low bid $4,498,378 by Staker & Parson Companies DBA Idaho Materials & Construction.
On each agency's own bid board after the opening. Each result here links to the listing it came from.
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Compiled from public records and refreshed nightly; last updated Nov 5, 2026. Results are as the agency published them in its bid tabulation; apparent low bidder is not always the award. Firms are named as they appear on the tabulation; no individuals are named. Check the source before acting. See something wrong? Tell us and we will correct it.