Spillway Bridge over Spillway Channel
FairColumbia County, Washington · Little Goose Dam · Structure no. CEPNPWWA0LGOSPY
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 504 ft
- 8 main spans
- Daily traffic
- 50
- 2022 count
- Owner
- Federal
- Corps of Engineers (Civil)
About this bridge
Spillway Bridge over Spillway Channel is a prestressed concrete stringer/multi-beam or girder carrying Spillway Bridge over Spillway Channel in Columbia County, Washington. It was built in 1968, so it is 57 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 5 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 50 by 2040. The structure is 504 ft (153.6 m) long and 25 ft wide. If it were closed, the detour would be 65.2 mi (105 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Spillway Bridge over Spillway Channel built?
It was built in 1968, making it 57 years old in 2025.
What condition is Spillway Bridge over Spillway Channel 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 Spillway Bridge over Spillway Channel carry?
About 50 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Spillway Bridge over Spillway Channel?
The structure is 504 ft (153.6 m) long with a longest span of 54 ft (16.4 m) and a deck 25 ft wide.
Who owns Spillway Bridge over Spillway Channel?
It is owned by the Corps of Engineers (Civil).