Traffic · awarded bid prices
Detectable Warning Surface: cost per square foot in Washington
The median awarded price is $50.00 per square foot, from 29 winning bids on 29 public projects in Washington (2024–2026). Half of the awarded prices fall between $35.00 and $80.00.
Cost by state › Washington › Detectable Warning Surface
$50.00median per square foot
$35.00 – $80.00middle half (25th–75th percentile)
29winning bids, 29 source documents
2024–2026lettings covered (last 3 years)
Winning bids only, as printed in the agencies' bid tabulations (WSDOT). 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 $32.50 in 2021 to $50.00 in 2026 (+54%).
| Year | Median per square foot | Winning bids |
|---|---|---|
| 2021 | $32.50 | 11 |
| 2022 | $80.00 | 11 |
| 2023 | $52.62 | 12 |
| 2024 | $64.00 | 9 |
| 2025 | $40.00 | 11 |
| 2026 | $50.00 | 9 |
Most recent source documents
| Letting | Agency | Quantity | Awarded unit price | Source |
|---|---|---|---|---|
| Aug 19, 2026 | WSDOT | 1093 S.F. | $35.00 | line 258 ↗ |
| Jul 22, 2026 | WSDOT | 190 S.F. | $90.00 | line 158 ↗ |
| Jul 8, 2026 | WSDOT | 51 S.F. | $31.00 | line 46 ↗ |
| May 20, 2026 | WSDOT | 72 S.F. | $50.00 | line 39 ↗ |
| May 13, 2026 | WSDOT | 40 S.F. | $64.00 | line 88 ↗ |
See every awarded price for this item, in all states, on the Detectable Warning Surface item page.
Detectable Warning Surface in other states
- California: median $54.50 (226 bids)
- Connecticut: median $48.00 (53 bids)
- Alabama: median $57.65 (49 bids)
- Delaware: median $39.14 (40 bids)
- Vermont: median $62.00 (33 bids)
Related items in Washington
- Construction Signs Class A: $31.50 per square foot
- Temporary Pavement Marking-short Duration: $0.55 per linear foot
- Portable Changeable Message Sign: $7.00 per hour
- Plastic Drainage Marking: $101.60 per each
- Plastic Traffic Arrow: $457.55 per each
- Plastic Crosswalk Line: $14.12 per square foot
- Plastic Crosshatch Marking: $11.12 per linear foot
- Painted Drainage Marking: $50.00 per each
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