SUNSET/3360 over Cottonwood Creek
GoodPosted for loadWhitman County, Washington · 9.76 MI SE Pne Cty-Malden · Structure no. 084378000000000
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 38 ft
- 1 main span
- Daily traffic
- 70
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
SUNSET/3360 over Cottonwood Creek is a prestressed concrete stringer/multi-beam or girder carrying SUNSET/3360 over Cottonwood Creek in Whitman County, Washington. It was built in 1978, so it is 47 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. Its operating status is: posted for load restriction.
It carries about 70 vehicles a day, roughly 25% of them trucks, projected to reach 70 by 2044. The structure is 38 ft (11.6 m) long and 28 ft wide. If it were closed, the detour would be 29.8 mi (48 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SUNSET/3360 over Cottonwood Creek built?
It was built in 1978, making it 47 years old in 2025.
What condition is SUNSET/3360 over Cottonwood 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 December 2023.
How much traffic does SUNSET/3360 over Cottonwood Creek carry?
About 70 vehicles per day (2021 count), of which roughly 25% are trucks.
How long is SUNSET/3360 over Cottonwood Creek?
The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11.1 m) and a deck 28 ft wide.
Who owns SUNSET/3360 over Cottonwood Creek?
It is owned by the County Highway Agency.