Aggregate base course cost per cubic yard in Washington
Updated · BuildGets Team
Public bids in Washington put the aggregate base course at a median of $110 per cubic yard, with the middle half of bids between $75.00 and $200. That is 23 % above the national median of $89.50. Based on 25 bidder prices from 4 public bid tabulations opened between December 2022 and February 2025.
| Median bid in Washington | $110 / CY |
| Middle 50 % of bids | $75.00 – $200 |
| National median | $89.50 (+23 %) |
| Bidder prices · bid tabs · owners | 25 · 4 · 2 |
Bid tabs in Washington
| Owner | Bid opening | Low bid | Median of bids | Bids |
|---|---|---|---|---|
| Clark County Public Works | Feb 2025 | $100 | $100 | 7 |
| Clark County Public Works | Feb 2025 | $200 | $150 | 9 |
| Clark County Public Works | Feb 2023 | $75.00 | $75.00 | 7 |
| WASHINGTON STATE DEPARTMENT OF TRANSPORTATION | Dec 2022 | $238 | 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 cubic yard in Washington, October 2026. https://www.buildgets.com/us/unit-prices/aggregate-base-course-per-cy/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 $110 per cubic yard, with the middle half of bids between $75.00 and $200. That is 23 % above the national median of $89.50. Based on 25 bidder prices from 4 public bid tabulations opened between December 2022 and February 2025.
Is Washington more expensive than the national average?
For this item the Washington median bid is 23 % above the national median of $89.50. Bid prices depend on the owner, the job size and what the item includes, so compare with the sources below.