SR 7 over Nisqually R Overflow
GoodLewis County, Washington · 16.1 N JCT SR 508 · Structure no. 0003072A0000000
- Built
- 1945
- 80 years old
- Condition
- Good
- inspected November 2024
- Type
- Slab
- Concrete Continuous
- Length
- 157 ft
- 8 main spans
- Daily traffic
- 2,872
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 7 over Nisqually R Overflow is a concrete continuous slab carrying SR 7 over Nisqually R Overflow in Lewis County, Washington. It was built in 1945, so it is 80 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 2,872 vehicles a day, roughly 13% of them trucks, projected to reach 3,544 by 2039. The structure is 157 ft (47.9 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
| 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 SR 7 over Nisqually R Overflow built?
It was built in 1945, making it 80 years old in 2025.
What condition is SR 7 over Nisqually R Overflow 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 7 over Nisqually R Overflow carry?
About 2,872 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is SR 7 over Nisqually R Overflow?
The structure is 157 ft (47.9 m) long with a longest span of 20 ft (6.1 m) and a deck 34 ft wide.
Who owns SR 7 over Nisqually R Overflow?
It is owned by the State Highway Agency.