BEACON/7140 over Alkali Flat Creek
GoodWhitman County, Washington · 4.09 MI SE Camp · Structure no. 082879000000000
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected November 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 70 ft
- 1 main span
- Daily traffic
- 25
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
BEACON/7140 over Alkali Flat Creek is a prestressed concrete tee beam carrying BEACON/7140 over Alkali Flat Creek in Whitman County, Washington. It was built in 1980, so it is 45 years old, younger than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 25 vehicles a day, roughly 25% of them trucks, projected to reach 26 by 2039. The structure is 70 ft (21.3 m) long and 28 ft wide. If it were closed, the detour would be 19.9 mi (32 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was BEACON/7140 over Alkali Flat Creek built?
It was built in 1980, making it 45 years old in 2025.
What condition is BEACON/7140 over Alkali Flat Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.
How much traffic does BEACON/7140 over Alkali Flat Creek carry?
About 25 vehicles per day (2020 count), of which roughly 25% are trucks.
How long is BEACON/7140 over Alkali Flat Creek?
The structure is 70 ft (21.3 m) long with a longest span of 69 ft (21 m) and a deck 28 ft wide.
Who owns BEACON/7140 over Alkali Flat Creek?
It is owned by the County Highway Agency.