15th Ave NE over Thornton CR Ravine
GoodKing County, Washington · 10411 15th Ave NE · Structure no. 085480000000000
- Built
- 1949
- 76 years old, rebuilt 2010
- Condition
- Good
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 475 ft
- 6 main spans
- Daily traffic
- 9,189
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
15th Ave NE over Thornton CR Ravine is a prestressed concrete continuous box beam or girders - multiple carrying 15th Ave NE over Thornton CR Ravine in King County, Washington. It was built in 1949 and reconstructed in 2010, so it is 76 years old, older 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 9,189 vehicles a day, roughly 5% of them trucks, projected to reach 11,210 by 2043. The structure is 475 ft (144.8 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 15th Ave NE over Thornton CR Ravine built?
It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2010.
What condition is 15th Ave NE over Thornton CR Ravine 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 June 2023.
How much traffic does 15th Ave NE over Thornton CR Ravine carry?
About 9,189 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is 15th Ave NE over Thornton CR Ravine?
The structure is 475 ft (144.8 m) long with a longest span of 106 ft (32.3 m) and a deck 32 ft wide.
Who owns 15th Ave NE over Thornton CR Ravine?
It is owned by the City or Municipal Highway Agency.