Paving · awarded bid prices · Cook County
Aggregate subgrade improve: cost per cubic yard in Cook County, IL
Listed by the agency as “Agg Subgrade Improve”.
The median awarded price is $65.00 per cubic yard, from 116 winning bids on 116 public projects in Cook County, IL (2023–2026). Half of the awarded prices fall between $50.00 and $80.00.
Cost by state › Illinois › Cook County › Agg Subgrade Improve
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 $47.36 in 2021 to $70.50 in 2026 (+49%).
| Year | Median per cubic yard | Winning bids |
|---|---|---|
| 2021 | $47.36 | 24 |
| 2022 | $57.50 | 32 |
| 2023 | $65.00 | 31 |
| 2024 | $60.00 | 35 |
| 2025 | $61.73 | 42 |
| 2026 | $70.50 | 34 |
Most recent source documents
| Letting | Agency | Quantity | Awarded unit price | Source |
|---|---|---|---|---|
| Jul 31, 2026 | IDOT | 327 CU YD | $79.57 | Open bid tab, 61K19 ↗ |
| Jul 31, 2026 | IDOT | 647 CU YD | $50.00 | Open bid tab, 61K85 ↗ |
| Jul 31, 2026 | IDOT | 24 CU YD | $90.00 | Open bid tab, 62J64 ↗ |
| Jul 31, 2026 | IDOT | 78 CU YD | $60.00 | Open bid tab, 62W20 ↗ |
| Jul 31, 2026 | IDOT | 62 CU YD | $60.00 | Open bid tab, 80B44 ↗ |
See every awarded price for this item on the Agg Subgrade Improve 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
- Hma Sc Il-9.5 D N70: $115.00 per ton
- Pavement Rem: $20.00 per square yard