NFSR 770.1 over S. Fork Mighigan River
GoodJackson County, Colorado · 4.5 Mi. S. of S.H. 14 · Structure no. 020604000001090
- Built
- 1966
- 59 years old, rebuilt 1982
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 24 ft
- 1 main span
- Daily traffic
- 17
- 2018 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
NFSR 770.1 over S. Fork Mighigan River is a wood or timber stringer/multi-beam or girder carrying NFSR 770.1 over S. Fork Mighigan River in Jackson County, Colorado. It was built in 1966 and reconstructed in 1982, so it is 59 years old, older than the Colorado average of 42.2 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 17 vehicles a day, projected to reach 25 by 2045. The structure is 24 ft (7.3 m) long and 17 ft wide. If it were closed, the detour would be 620.7 mi (999 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NFSR 770.1 over S. Fork Mighigan River built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1982.
What condition is NFSR 770.1 over S. Fork Mighigan 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 August 2023.
How much traffic does NFSR 770.1 over S. Fork Mighigan River carry?
About 17 vehicles per day (2018 count).
How long is NFSR 770.1 over S. Fork Mighigan River?
The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 17 ft wide.
Who owns NFSR 770.1 over S. Fork Mighigan River?
It is owned by the U.S. Forest Service.