Wynooche Wishkah over Wynoochee River Slough
PoorPosted for loadGrays Harbor County, Washington · 0.6 W JCT 9519 · Structure no. 084332000000000
- Built
- 1973
- 52 years old
- Condition
- Poor
- inspected January 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 94 ft
- 3 main spans
- Daily traffic
- 728
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Wynooche Wishkah over Wynoochee River Slough is a prestressed concrete slab carrying Wynooche Wishkah over Wynoochee River Slough in Grays Harbor County, Washington. It was built in 1973, so it is 52 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 728 vehicles a day, roughly 15% of them trucks, projected to reach 888 by 2043. The structure is 94 ft (28.8 m) long and 24 ft wide. If it were closed, the detour would be 34.8 mi (56 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Wynooche Wishkah over Wynoochee River Slough built?
It was built in 1973, making it 52 years old in 2025.
What condition is Wynooche Wishkah over Wynoochee River Slough in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2023.
How much traffic does Wynooche Wishkah over Wynoochee River Slough carry?
About 728 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is Wynooche Wishkah over Wynoochee River Slough?
The structure is 94 ft (28.8 m) long with a longest span of 31 ft (9.5 m) and a deck 24 ft wide.
Who owns Wynooche Wishkah over Wynoochee River Slough?
It is owned by the County Highway Agency.