SR 505 over Salmon Creek
GoodLewis County, Washington · 13.5 E JCT I-5 · Structure no. 0003852A0000000
- Built
- 1951
- 74 years old
- Condition
- Good
- inspected November 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 156 ft
- 3 main spans
- Daily traffic
- 598
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 505 over Salmon Creek is a concrete continuous tee beam carrying SR 505 over Salmon Creek in Lewis County, Washington. It was built in 1951, so it is 74 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 598 vehicles a day, roughly 18% of them trucks, projected to reach 756 by 2039. The structure is 156 ft (47.5 m) long and 30 ft wide. If it were closed, the detour would be 42.3 mi (68 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 505 over Salmon Creek built?
It was built in 1951, making it 74 years old in 2025.
What condition is SR 505 over Salmon 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 SR 505 over Salmon Creek carry?
About 598 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is SR 505 over Salmon Creek?
The structure is 156 ft (47.5 m) long with a longest span of 65 ft (19.8 m) and a deck 30 ft wide.
Who owns SR 505 over Salmon Creek?
It is owned by the State Highway Agency.