Nfsr 780.1 over S. Fork Michigan River
Jackson County, Colorado · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfsr 780.1 over S. Fork Michigan River in Jackson County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1984, making it 41 years old at the 2025 inventory.
- It carries about 17 vehicles a day.
- It is one of 13 of the 47 inventoried bridges in Jackson County rated good (27.7%); 2 (4.3%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (40.48158, -106.00711)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 32 ft |
| Location | 3.7 Mi S. of S.H. 14 |
| NBI structure number | 020604000001093 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Jackson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SH 125 Ml over Michigan River | 2012 | 2,400 | Good |
| SH 125 Ml over Illinois River | 1993 | 2,200 | Good |
| SH 14 Ml over Grizzly Creek | 1949 | 1,300 | Fair |
| SH 14 Ml over Grizzly Creek | 1950 | 1,300 | Fair |
| SH 14 Ml over Colorado Creek | 1949 | 1,300 | Fair |
| SH 14 Ml over Arapahoe Creek | 1950 | 1,300 | Fair |
All bridges nearby: Jackson County, CO bridge conditions · every bridge in Jackson County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.