SR 23 over Kamiache Creek
FairWhitman County, Washington · 22.0 N JCT US 195 · Structure no. 0005807B0000000
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete Continuous
- Length
- 89 ft
- 3 main spans
- Daily traffic
- 705
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 23 over Kamiache Creek is a concrete continuous slab carrying SR 23 over Kamiache Creek in Whitman County, Washington. It was built in 1958, so it is 67 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 6 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 705 vehicles a day, roughly 20% of them trucks, projected to reach 735 by 2039. The structure is 89 ft (27.1 m) long and 43 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 23 over Kamiache Creek built?
It was built in 1958, making it 67 years old in 2025.
What condition is SR 23 over Kamiache Creek 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 April 2023.
How much traffic does SR 23 over Kamiache Creek carry?
About 705 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is SR 23 over Kamiache Creek?
The structure is 89 ft (27.1 m) long with a longest span of 35 ft (10.7 m) and a deck 43 ft wide.
Who owns SR 23 over Kamiache Creek?
It is owned by the State Highway Agency.