Porter Creek RD W over Chehalis River
GoodGrays Harbor County, Washington · 0.1 W JCT SR 12 · Structure no. 082824000000000
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 490 ft
- 4 main spans
- Daily traffic
- 713
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Porter Creek RD W over Chehalis River is a prestressed concrete continuous stringer/multi-beam or girder carrying Porter Creek RD W over Chehalis River in Grays Harbor County, Washington. It was built in 1986, so it is 39 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 713 vehicles a day, roughly 12% of them trucks, projected to reach 870 by 2043. The structure is 490 ft (149.4 m) long and 37 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Porter Creek RD W over Chehalis River built?
It was built in 1986, making it 39 years old in 2025.
What condition is Porter Creek RD W over Chehalis 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 February 2023.
How much traffic does Porter Creek RD W over Chehalis River carry?
About 713 vehicles per day (2020 count), of which roughly 12% are trucks.
How long is Porter Creek RD W over Chehalis River?
The structure is 490 ft (149.4 m) long with a longest span of 129 ft (39.3 m) and a deck 37 ft wide.
Who owns Porter Creek RD W over Chehalis River?
It is owned by the County Highway Agency.