Aggregate base course cost per ton in Washington
Updated · BuildGets Team
Public bids in Washington put the aggregate base course at a median of $91.00 per ton, with the middle half of bids between $64.95 and $121. That is 139 % above the national median of $38.00. Based on 16 bidder prices from 5 public bid tabulations opened between August 2022 and March 2025.
| Median bid in Washington | $91.00 / TON |
| Middle 50 % of bids | $64.95 – $121 |
| National median | $38.00 (+139 %) |
| Bidder prices · bid tabs · owners | 16 · 5 · 2 |
Bid tabs in Washington
| Owner | Bid opening | Low bid | Median of bids | Bids |
|---|---|---|---|---|
| Clark County Public Works | Mar 2025 | $100 | $113 | 4 |
| WASHINGTON STATE DEPARTMENT OF TRANSPORTATION | Dec 2022 | $57.90 | $72.00 | 3 |
| WASHINGTON STATE DEPARTMENT OF TRANSPORTATION | Dec 2022 | $40.00 | 3 | |
| WASHINGTON STATE DEPARTMENT OF TRANSPORTATION | Oct 2022 | $100 | $91.00 | 4 |
| WASHINGTON STATE DEPARTMENT OF TRANSPORTATION | Aug 2022 | $120 | $90.30 | 2 |
Prices are what contractors bid on public jobs in Washington, not installed costs from a price book. What each item includes varies by owner: read the item description in each bid tab before comparing. National figure and every state: aggregate base course unit price. Every unit price in Washington: Washington unit prices.
Cite as: BuildGets BID, Aggregate base course cost per ton in Washington, October 2026. https://www.buildgets.com/us/unit-prices/aggregate-base-course-per-ton/wa/ (CC BY 4.0)
Questions
How much does an aggregate base course cost in Washington?
Public bids in Washington put the aggregate base course at a median of $91.00 per ton, with the middle half of bids between $64.95 and $121. That is 139 % above the national median of $38.00. Based on 16 bidder prices from 5 public bid tabulations opened between August 2022 and March 2025.
Is Washington more expensive than the national average?
For this item the Washington median bid is 139 % above the national median of $38.00. Bid prices depend on the owner, the job size and what the item includes, so compare with the sources below.