South Bank Road over Chehalis River
FairPosted for loadGrays Harbor County, Washington · 1.7 SW JCT SR 12 · Structure no. 084880000000000
- Built
- 1930
- 95 years old, rebuilt 1999
- Condition
- Fair
- inspected February 2024
- Type
- Truss - Deck
- Steel
- Length
- 1,080 ft
- 1 main span
- Daily traffic
- 921
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
South Bank Road over Chehalis River is a steel truss - deck carrying South Bank Road over Chehalis River in Grays Harbor County, Washington. It was built in 1930 and reconstructed in 1999, so it is 95 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 921 vehicles a day, roughly 17% of them trucks, projected to reach 1,369 by 2040. The structure is 1,080 ft (329.2 m) long and 31 ft wide. If it were closed, the detour would be 18 mi (29 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 South Bank Road over Chehalis River built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1999.
What condition is South Bank Road over Chehalis 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 February 2024.
How much traffic does South Bank Road over Chehalis River carry?
About 921 vehicles per day (2020 count), of which roughly 17% are trucks.
How long is South Bank Road over Chehalis River?
The structure is 1,080 ft (329.2 m) long with a longest span of 200 ft (61 m) and a deck 31 ft wide.
Who owns South Bank Road over Chehalis River?
It is owned by the County Highway Agency.