SR 401 over Naselle R
GoodPacific County, Washington · 11.4 N JCT US 101 · Structure no. 0004271A0000000
- Built
- 1953
- 72 years old
- Condition
- Good
- inspected August 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 222 ft
- 4 main spans
- Daily traffic
- 2,839
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 401 over Naselle R is a concrete continuous tee beam carrying SR 401 over Naselle R in Pacific County, Washington. It was built in 1953, so it is 72 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 2,839 vehicles a day, roughly 10% of them trucks, projected to reach 3,662 by 2039. The structure is 222 ft (67.7 m) long and 34 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 401 over Naselle R built?
It was built in 1953, making it 72 years old in 2025.
What condition is SR 401 over Naselle R 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 401 over Naselle R carry?
About 2,839 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is SR 401 over Naselle R?
The structure is 222 ft (67.7 m) long with a longest span of 60 ft (18.3 m) and a deck 34 ft wide.
Who owns SR 401 over Naselle R?
It is owned by the State Highway Agency.