SR 507 over Muck Creek Overflow
FairPierce County, Washington · 7.4 N JCT SR 702 · Structure no. 0003884A0000000
- Built
- 1920
- 105 years old, rebuilt 1950
- Condition
- Fair
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 32 ft
- 2 main spans
- Daily traffic
- 11,031
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 507 over Muck Creek Overflow is a concrete continuous slab carrying SR 507 over Muck Creek Overflow in Pierce County, Washington. It was built in 1920 and reconstructed in 1950, so it is 105 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 11,031 vehicles a day, roughly 7% of them trucks, projected to reach 16,206 by 2039. The structure is 32 ft (9.8 m) long and 42 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 507 over Muck Creek Overflow built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1950.
What condition is SR 507 over Muck Creek Overflow 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 August 2024.
How much traffic does SR 507 over Muck Creek Overflow carry?
About 11,031 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is SR 507 over Muck Creek Overflow?
The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 42 ft wide.
Who owns SR 507 over Muck Creek Overflow?
It is owned by the State Highway Agency.