12th Ave SW over Clarks Creek
FairPierce County, Washington · 1 MI West of SR 512 · Structure no. 085746000000000
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 67 ft
- 1 main span
- Daily traffic
- 245
- 2017 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
12th Ave SW over Clarks Creek is a prestressed concrete tee beam carrying 12th Ave SW over Clarks Creek in Pierce County, Washington. It was built in 1972, so it is 53 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 245 vehicles a day, roughly 5% of them trucks, projected to reach 640 by 2039. The structure is 67 ft (20.4 m) long and 37 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 12th Ave SW over Clarks Creek built?
It was built in 1972, making it 53 years old in 2025.
What condition is 12th Ave SW over Clarks 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 July 2023.
How much traffic does 12th Ave SW over Clarks Creek carry?
About 245 vehicles per day (2017 count), of which roughly 5% are trucks.
How long is 12th Ave SW over Clarks Creek?
The structure is 67 ft (20.4 m) long with a longest span of 65 ft (19.8 m) and a deck 37 ft wide.
Who owns 12th Ave SW over Clarks Creek?
It is owned by the City or Municipal Highway Agency.