US 101 over Lost Creek
GoodJefferson County, Washington · 22.4 N Grays Hbr CO · Structure no. 0015390A0000000
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 236 ft
- 2 main spans
- Daily traffic
- 1,169
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 101 over Lost Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US 101 over Lost Creek in Jefferson County, Washington. It was built in 1999, so it is 26 years old, younger 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 1,169 vehicles a day, roughly 23% of them trucks, projected to reach 1,872 by 2039. The structure is 236 ft (71.9 m) long and 38 ft wide. If it were closed, the detour would be 98.8 mi (159 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 US 101 over Lost Creek built?
It was built in 1999, making it 26 years old in 2025.
What condition is US 101 over Lost Creek 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 August 2023.
How much traffic does US 101 over Lost Creek carry?
About 1,169 vehicles per day (2023 count), of which roughly 23% are trucks.
How long is US 101 over Lost Creek?
The structure is 236 ft (71.9 m) long with a longest span of 127 ft (38.7 m) and a deck 38 ft wide.
Who owns US 101 over Lost Creek?
It is owned by the State Highway Agency.