SR 26 over Palouse River
PoorWhitman County, Washington · 16.1 E JCT SR 127 · Structure no. 0002293A0000000
- Built
- 1937
- 88 years old
- Condition
- Poor
- inspected September 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 603 ft
- 16 main spans
- Daily traffic
- 3,094
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 26 over Palouse River is a concrete continuous tee beam carrying SR 26 over Palouse River in Whitman County, Washington. It was built in 1937, so it is 88 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 3,094 vehicles a day, roughly 23% of them trucks, projected to reach 3,475 by 2039. The structure is 603 ft (183.7 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 26 over Palouse River built?
It was built in 1937, making it 88 years old in 2025.
What condition is SR 26 over Palouse River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.
How much traffic does SR 26 over Palouse River carry?
About 3,094 vehicles per day (2023 count), of which roughly 23% are trucks.
How long is SR 26 over Palouse River?
The structure is 603 ft (183.7 m) long with a longest span of 88 ft (26.8 m) and a deck 31 ft wide.
Who owns SR 26 over Palouse River?
It is owned by the State Highway Agency.