Kamiaken Street over S Fork Palouse River
FairWhitman County, Washington · 00.10 N JCT SR270 · Structure no. 085037000000000
- Built
- 1930
- 95 years old
- Condition
- Fair
- inspected October 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 84 ft
- 2 main spans
- Daily traffic
- 2,554
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Kamiaken Street over S Fork Palouse River is a concrete continuous tee beam carrying Kamiaken Street over S Fork Palouse River in Whitman County, Washington. It was built in 1930, so it is 95 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,554 vehicles a day, roughly 2% of them trucks, projected to reach 5,100 by 2042. The structure is 84 ft (25.6 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Kamiaken Street over S Fork Palouse River built?
It was built in 1930, making it 95 years old in 2025.
What condition is Kamiaken Street over S Fork Palouse River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.
How much traffic does Kamiaken Street over S Fork Palouse River carry?
About 2,554 vehicles per day (2021 count), of which roughly 2% are trucks.
How long is Kamiaken Street over S Fork Palouse River?
The structure is 84 ft (25.6 m) long with a longest span of 41 ft (12.5 m) and a deck 59 ft wide.
Who owns Kamiaken Street over S Fork Palouse River?
It is owned by the City or Municipal Highway Agency.