Traffic · awarded bid prices · St. Clair County
Detectable Warnings: cost per square foot in St. Clair County, IL
The median awarded price is $52.00 per square foot, from 17 winning bids on 17 public projects in St. Clair County, IL (2023–2026). Half of the awarded prices fall between $42.00 and $72.00.
Cost by state › Illinois › St. Clair County › Detectable Warnings
Winning bids only, as printed in the agencies' bid tabulations (IDOT). The county is the one the agency recorded for the project. These are prices agencies awarded, not quotes: a price on a given job depends on quantity, location and timing, and the figures here are not adjusted for any of them.
Trend
The median awarded price went from $36.50 in 2019 to $48.27 in 2026 (+32%).
| Year | Median per square foot | Winning bids |
|---|---|---|
| 2019 | $36.50 | 8 |
| 2020 | $25.00 | 5 |
| 2021 | $49.74 | 7 |
| 2023 | $43.00 | 5 |
| 2026 | $48.27 | 8 |
Most recent source documents
| Letting | Agency | Quantity | Awarded unit price | Source |
|---|---|---|---|---|
| Sep 18, 2026 | IDOT | 31 SQ FT | $97.00 | Open bid tab, 97892 ↗ |
| Jun 12, 2026 | IDOT | 30 SQ FT | $48.00 | Open bid tab, 97827 ↗ |
| Jun 12, 2026 | IDOT | 534 SQ FT | $52.00 | Open bid tab, 97899 ↗ |
| Apr 24, 2026 | IDOT | 276 SQ FT | $40.00 | Open bid tab, 97865 ↗ |
| Apr 24, 2026 | IDOT | 165 SQ FT | $31.55 | Open bid tab, 97808 ↗ |
The same item across Illinois: statewide figures. See every awarded price for this item on the Detectable Warnings item page.
Related items in St. Clair County
- Sign Panel T1: $42.00 per square foot