SR 18 over Holder CR Hobart RD
GoodKing County, Washington · 4.6 E JCT SR 169 · Structure no. 0006541A0000000
- Built
- 1961
- 64 years old
- Condition
- Good
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 304 ft
- 3 main spans
- Daily traffic
- 11,615
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 18 over Holder CR Hobart RD is a concrete continuous box beam or girders - multiple carrying SR 18 over Holder CR Hobart RD in King County, Washington. It was built in 1961, so it is 64 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 11,615 vehicles a day, roughly 17% of them trucks, projected to reach 17,716 by 2039. The structure is 304 ft (92.7 m) long and 43 ft wide. If it were closed, the detour would be 29.2 mi (47 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 18 over Holder CR Hobart RD built?
It was built in 1961, making it 64 years old in 2025.
What condition is SR 18 over Holder CR Hobart RD 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 March 2024.
How much traffic does SR 18 over Holder CR Hobart RD carry?
About 11,615 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is SR 18 over Holder CR Hobart RD?
The structure is 304 ft (92.7 m) long with a longest span of 120 ft (36.6 m) and a deck 43 ft wide.
Who owns SR 18 over Holder CR Hobart RD?
It is owned by the State Highway Agency.