SR 4 over Deep River
GoodWahkiakum County, Washington · 6.0 E JCT SR 401 · Structure no. 0013358A0000000
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected April 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 1,388 ft
- 1 main span
- Daily traffic
- 1,509
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 4 over Deep River is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 4 over Deep River 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 1,388 ft (423.1 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 Deep River built?
It was built in 1990, making it 35 years old in 2025.
What condition is SR 4 over Deep River 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 Deep River carry?
About 1,509 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is SR 4 over Deep River?
The structure is 1,388 ft (423.1 m) long with a longest span of 97 ft (29.6 m) and a deck 39 ft wide.
Who owns SR 4 over Deep River?
It is owned by the State Highway Agency.