3800 North RD over Big Lost River
GoodCuster County, Idaho · 1.0 N. Darlington · Structure no. 000000000031721
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected April 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 90 ft
- 1 main span
- Daily traffic
- 30
- 2023 count
- Owner
- Local
- Other Local Agency
About this bridge
3800 North RD over Big Lost River is a prestressed concrete tee beam carrying 3800 North RD over Big Lost River in Custer County, Idaho. It was built in 2007, so it is 18 years old, younger than the Idaho average of 45.3 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 30 vehicles a day, projected to reach 45 by 2042. The structure is 90 ft (27.4 m) long and 35 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 3800 North RD over Big Lost River built?
It was built in 2007, making it 18 years old in 2025.
What condition is 3800 North RD over Big Lost River 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 April 2023.
How much traffic does 3800 North RD over Big Lost River carry?
About 30 vehicles per day (2023 count).
How long is 3800 North RD over Big Lost River?
The structure is 90 ft (27.4 m) long with a longest span of 87 ft (26.5 m) and a deck 35 ft wide.
Who owns 3800 North RD over Big Lost River?
It is owned by the Other Local Agency.