Paving · awarded bid prices · Cook County
Aggregate subgrade impr 12: cost per square yard in Cook County, IL
Listed by the agency as “Agg Subgrade Impr 12”.
The median awarded price is $21.60 per square yard, from 83 winning bids on 83 public projects in Cook County, IL (2023–2026). Half of the awarded prices fall between $17.75 and $29.50.
Cost by state › Illinois › Cook County › Agg Subgrade Impr 12
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 $20.00 in 2021 to $25.00 in 2026 (+25%).
| Year | Median per square yard | Winning bids |
|---|---|---|
| 2021 | $20.00 | 22 |
| 2022 | $22.50 | 25 |
| 2023 | $21.00 | 31 |
| 2024 | $20.65 | 27 |
| 2025 | $20.00 | 25 |
| 2026 | $25.00 | 26 |
Most recent source documents
| Letting | Agency | Quantity | Awarded unit price | Source |
|---|---|---|---|---|
| Jul 31, 2026 | IDOT | 992 SQ YD | $34.32 | Open bid tab, 61K19 ↗ |
| Jul 31, 2026 | IDOT | 9693 SQ YD | $25.00 | Open bid tab, 61K85 ↗ |
| Jul 31, 2026 | IDOT | 168 SQ YD | $30.00 | Open bid tab, 62T84 ↗ |
| Jul 31, 2026 | IDOT | 823 SQ YD | $20.00 | Open bid tab, 62W20 ↗ |
| Jul 31, 2026 | IDOT | 741 SQ YD | $24.00 | Open bid tab, 80B44 ↗ |
See every awarded price for this item on the Agg Subgrade Impr 12 item page.
Related items in Cook County
- Sidewalk Rem: $3.00 per square foot
- Pc Conc Sidewalk 5: $10.86 per square foot
- Long Joint Sealant: $3.50 per linear foot
- Comb Curb Gutter Rem: $10.00 per linear foot
- Drive Pavement Rem: $20.00 per square yard
- Hma Sc Il-9.5 D N50: $130.00 per ton
- Agg Subgrade Improve: $65.00 per cubic yard
- Hma Sc Il-9.5 D N70: $115.00 per ton