Other · awarded bid prices
Granular Subbase: cost per ton in Idaho
The median awarded price is $24.00 per ton, from 21 winning bids on 21 public projects in Idaho (2024–2026). Half of the awarded prices fall between $16.60 and $34.50.
Cost by state › Idaho › Granular Subbase
$24.00median per ton
$16.60 – $34.50middle half (25th–75th percentile)
21winning bids, 21 source documents
2024–2026lettings covered (last 3 years)
Winning bids only, as printed in the agencies' bid tabulations (ITD). 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 $29.88 in 2025 to $21.00 in 2026 (-30%).
| Year | Median per ton | Winning bids |
|---|---|---|
| 2025 | $29.88 | 6 |
| 2026 | $21.00 | 14 |
Most recent source documents
| Letting | Agency | Quantity | Awarded unit price | Source |
|---|---|---|---|---|
| Oct 20, 2026 | ITD | 6075 TON | $24.00 | line 90 ↗ |
| Aug 18, 2026 | ITD | 10985 TON | $22.00 | line 155 ↗ |
| Jul 28, 2026 | ITD | 24250 TON | $11.00 | line 85 ↗ |
| Jul 14, 2026 | ITD | 9800 TON | $13.00 | line 70 ↗ |
| Jun 30, 2026 | ITD | 11175 TON | $12.40 | line 45 ↗ |
See every awarded price for this item, in all states, on the Granular Subbase item page.
Related items in Idaho
- Drums: $11.00 per each
- Weighted Base Tubular Markers: $7.50 per each
- Flagger Control: $58.38 per hour
- Approach: $2,160 per each
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