NFSR 371 over St. Charles River
FairPosted for loadCuster County, Colorado · St. Charles @ Lake Isabel · Structure no. 021203000001204
- Built
- 1938
- 87 years old, rebuilt 1980
- Condition
- Fair
- inspected November 2023
- Type
- Girder and Floorbeam System
- Steel
- Length
- 33 ft
- 1 main span
- Daily traffic
- 286
- 2003 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
NFSR 371 over St. Charles River is a steel girder and floorbeam system carrying NFSR 371 over St. Charles River in Custer County, Colorado. It was built in 1938 and reconstructed in 1980, so it is 87 years old, older than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 286 vehicles a day, roughly 4% of them trucks, projected to reach 286 by 2023. The structure is 33 ft (10.2 m) long and 22 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NFSR 371 over St. Charles River built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1980.
What condition is NFSR 371 over St. Charles River 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 November 2023.
How much traffic does NFSR 371 over St. Charles River carry?
About 286 vehicles per day (2003 count), of which roughly 4% are trucks.
How long is NFSR 371 over St. Charles River?
The structure is 33 ft (10.2 m) long with a longest span of 28 ft (8.6 m) and a deck 22 ft wide.
Who owns NFSR 371 over St. Charles River?
It is owned by the U.S. Forest Service.