Illinois Department of Transportation bid results
Updated Sep 18, 2026 (newest letting in this data)
Aggregates from 8,237 IDOT projects in our bid-tab data. Bidder names are not shown.
- Projects in data
- 8,237
- Projects with bid tabs
- 8,237
- Median bidders per project
- 3
- Single-bid rate
- 17.3%
Letting calendar
The 12 most recent letting dates in our data.
| Letting date | Projects | With bid tabs | Sum of low bids |
|---|---|---|---|
| Sep 18, 2026 | 3 | 3 | $16,434,495 |
| Jul 31, 2026 | 34 | 34 | $28,213,417 |
| Jun 12, 2026 | 185 | 185 | $743,211,766 |
| Apr 24, 2026 | 188 | 188 | $528,652,135 |
| Feb 27, 2026 | 145 | 145 | $579,435,908 |
| Jan 16, 2026 | 182 | 182 | $706,584,674 |
| Nov 7, 2025 | 75 | 75 | $206,635,510 |
| Sep 19, 2025 | 82 | 82 | $390,733,235 |
| Aug 1, 2025 | 68 | 68 | $306,391,578 |
| Jun 13, 2025 | 210 | 210 | $677,826,609 |
| Apr 25, 2025 | 191 | 191 | $781,587,965 |
| Mar 7, 2025 | 163 | 163 | $587,145,545 |
Recent bid results
The newest tabulated projects. Low bid is the apparent low bid on the tabulation; award status is not in this data. Bidder names are not shown.
| Project | County | Letting | Bidders | Low bid | Tabulation |
|---|---|---|---|---|---|
| Superstructure replacement and bridge widening of 2 structures on I-57 over IC Railroad and TR 86 at Jones Switch. (SN 015-0003 and 015-0004) | Coles | Sep 18, 2026 | 3 | $11,526,296 | Official tabulation |
| 10.3 miles of HMA shoulders, aggregate wedge shoulders, rumble strips and pavement marking on IL 32 from Hydro Gear Drive in Sullivan to IL 16 in Windsor. | Moultrie, Shelby | Sep 18, 2026 | 1 | $3,605,567 | Official tabulation |
| 8 miles of patching on I-64 from 0.9 miles west of CH 11 to the Jefferson County line. | Washington | Sep 18, 2026 | 2 | $1,302,632 | Official tabulation |
| HMA resurfacing on Landmeier Rd from Lively Blvd. to Cambridge Dr. in Elk Grove Village. | Cook | Jul 31, 2026 | 4 | $1,589,589 | Official tabulation |
| Implementation of flashing yellow arrow signals at five existing signalized intersections along 63rd St. in Dupage County. | DuPage | Jul 31, 2026 | 3 | $2,996,846 | Official tabulation |
| This project will install fiber optic cable, network switches, PTZ Cameras and traffic signal controllers among other equipment to allow for remote access and… | Cook | Jul 31, 2026 | 3 | $1,753,960 | Official tabulation |
| (166-Ft) Glenwood Road Bridge (SN 016-0793) over Butterfield Creek project consists of reconstruction of the joints with strip seals, hydro scarification… | Cook | Jul 31, 2026 | 4 | $290,657 | Official tabulation |
| Bridge repairs and joint replacement on SN 071-0015, carrying IL 64 over drainage ditch, 5.7 miles east of junction IL 26. | Ogle | Jul 31, 2026 | 3 | $443,472 | Official tabulation |
| The proposed scope of work is considered an interim repair only and includes installing lagging boards to the existing guardrail posts to prevent water from… | Jo Daviess | Jul 31, 2026 | 5 | $45,940 | Official tabulation |
| Tree removal in advance to CN 64G98 from Shaw Rd east of Winnebago County Line to 0.1 miles northeast of State St in Belvidere. 3.051 miles gross length. | Boone | Jul 31, 2026 | 2 | $615,524 | Official tabulation |
Bidders per project
| Bidders | Projects | Share |
|---|---|---|
| 1 | 1426 | 17.3% |
| 2 | 2374 | 28.8% |
| 3 | 1862 | 22.6% |
| 4 | 1208 | 14.7% |
| 5+ | 1367 | 16.6% |