County Road 501 over Los Pinos River
La Plata County, Colorado · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road 501 over Los Pinos River in La Plata County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1945 and reconstructed in 1997, making it 80 years old at the 2025 inventory.
- It carries about 2,112 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 59 of the 105 inventoried bridges in La Plata County rated fair (56.2%); 1 (1.0%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (37.32891, -107.627)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 9 | Excellent condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 91 ft |
| Location | 7.2 Mi Nnw of Bayfield |
| NBI structure number | 067050107.8005A |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in La Plata County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 160 Ml over City St_animas Rvr | 1979 | 35,000 | Fair |
| US 160 Ml over Animas River | 1974 | 30,000 | Fair |
| US 550 Ml over Animas River | 1910 | 28,000 | Fair |
| US 160 Ml over Lightner Creek | 1970 | 19,000 | Fair |
| Private Land Acces over Lightner Creek Ar | 1973 | 19,000 | Fair |
| US 160 Ml over Animas River | 1968 | 17,000 | Fair |
All bridges nearby: La Plata County, CO bridge conditions · every bridge in La Plata County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.