SR 4 over Rangila Slough
GoodWahkiakum County, Washington · 6.4 E JCT SR 401 · Structure no. 0013358B0000000
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected April 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 195 ft
- 5 main spans
- Daily traffic
- 1,509
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 4 over Rangila Slough is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 4 over Rangila Slough in Wahkiakum County, Washington. It was built in 1990, so it is 35 years old, younger 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 1,509 vehicles a day, roughly 13% of them trucks, projected to reach 1,776 by 2039. The structure is 195 ft (59.4 m) long and 39 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 | 7 Good | Some minor problems. |
| 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 4 over Rangila Slough built?
It was built in 1990, making it 35 years old in 2025.
What condition is SR 4 over Rangila Slough 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 April 2022.
How much traffic does SR 4 over Rangila Slough carry?
About 1,509 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is SR 4 over Rangila Slough?
The structure is 195 ft (59.4 m) long with a longest span of 39 ft (11.9 m) and a deck 39 ft wide.
Who owns SR 4 over Rangila Slough?
It is owned by the State Highway Agency.