Depot Street over Union Flat Creek
FairWhitman County, Washington · 0.30 E Steptoe ST · Structure no. 085601000000000
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected January 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 78 ft
- 1 main span
- Daily traffic
- 50
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Depot Street over Union Flat Creek is a prestressed concrete tee beam carrying Depot Street over Union Flat Creek in Whitman County, Washington. It was built in 1977, so it is 48 years old, younger 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 50 vehicles a day, roughly 25% of them trucks, projected to reach 51 by 2044. The structure is 78 ft (23.8 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Depot Street over Union Flat Creek built?
It was built in 1977, making it 48 years old in 2025.
What condition is Depot Street over Union Flat 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 January 2024.
How much traffic does Depot Street over Union Flat Creek carry?
About 50 vehicles per day (2021 count), of which roughly 25% are trucks.
How long is Depot Street over Union Flat Creek?
The structure is 78 ft (23.8 m) long with a longest span of 76 ft (23.2 m) and a deck 24 ft wide.
Who owns Depot Street over Union Flat Creek?
It is owned by the City or Municipal Highway Agency.