SR 507 over Skookumchuck River
GoodThurston County, Washington · 0.7 N Lewis CO · Structure no. 0009006A0000000
- Built
- 1971
- 54 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 180 ft
- 2 main spans
- Daily traffic
- 2,894
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 507 over Skookumchuck River is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 507 over Skookumchuck River in Thurston County, Washington. It was built in 1971, so it is 54 years old, older 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 2,894 vehicles a day, roughly 10% of them trucks, projected to reach 4,109 by 2039. The structure is 180 ft (54.9 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 507 over Skookumchuck River built?
It was built in 1971, making it 54 years old in 2025.
What condition is SR 507 over Skookumchuck River 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 August 2023.
How much traffic does SR 507 over Skookumchuck River carry?
About 2,894 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is SR 507 over Skookumchuck River?
The structure is 180 ft (54.9 m) long with a longest span of 87 ft (26.5 m) and a deck 36 ft wide.
Who owns SR 507 over Skookumchuck River?
It is owned by the State Highway Agency.