South Bank Road over Chehalis R Overflow
FairGrays Harbor County, Washington · 0.6 S JCT SR 12 · Structure no. 079941000000000
- Built
- 1965
- 60 years old, rebuilt 1977
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 338 ft
- 14 main spans
- Daily traffic
- 1,250
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
South Bank Road over Chehalis R Overflow is a concrete continuous slab carrying South Bank Road over Chehalis R Overflow in Grays Harbor County, Washington. It was built in 1965 and reconstructed in 1977, so it is 60 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.
It carries about 1,250 vehicles a day, roughly 10% of them trucks, projected to reach 1,860 by 2042. The structure is 338 ft (103 m) long and 34 ft wide. If it were closed, the detour would be 13 mi (21 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was South Bank Road over Chehalis R Overflow built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1977.
What condition is South Bank Road over Chehalis R Overflow 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 October 2024.
How much traffic does South Bank Road over Chehalis R Overflow carry?
About 1,250 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is South Bank Road over Chehalis R Overflow?
The structure is 338 ft (103 m) long with a longest span of 29 ft (8.8 m) and a deck 34 ft wide.
Who owns South Bank Road over Chehalis R Overflow?
It is owned by the County Highway Agency.