Nisqually Entrance over Nisqually River
FairPierce County, Washington · 11.7 Miles Northeast of N · Structure no. 9450005P0000000
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected August 2024
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 743 ft
- 3 main spans
- Daily traffic
- 1,800
- 2023 count
- Owner
- Federal
- National Park Service
About this bridge
Nisqually Entrance over Nisqually River is a steel continuous girder and floorbeam system carrying Nisqually Entrance over Nisqually River in Pierce County, Washington. It was built in 1958, so it is 67 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 5 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 1,800 vehicles a day, roughly 20% of them trucks, projected to reach 1,980 by 2043. The structure is 743 ft (226.5 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nisqually Entrance over Nisqually River built?
It was built in 1958, making it 67 years old in 2025.
What condition is Nisqually Entrance over Nisqually River 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 Nisqually Entrance over Nisqually River carry?
About 1,800 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is Nisqually Entrance over Nisqually River?
The structure is 743 ft (226.5 m) long with a longest span of 303 ft (92.4 m) and a deck 35 ft wide.
Who owns Nisqually Entrance over Nisqually River?
It is owned by the National Park Service.