Cnty Rd 17 and 51 over Colowyo Coal Railroad
Moffat County, Colorado · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Cnty Rd 17 and 51 over Colowyo Coal Railroad in Moffat County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1975, making it 50 years old at the 2025 inventory.
- It carries about 110 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 21 of the 80 inventoried bridges in Moffat County rated good (26.2%); 5 (6.2%) 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 → (40.31677, -107.80113)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Steel culvert |
| Length | about 26 ft |
| Location | 1 MI NW of St Hwy13 MP 64 |
| NBI structure number | MOF17-01.70 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Moffat County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 40 Ml over Elkhead River | 1992 | 4,200 | Good |
| SH 394 Ml over Yampa River | 1985 | 3,100 | Good |
| US 40 Ml WB over Fortification Creek | 1952 | 3,000 | Fair |
| SH 13 Ml over Yampa River | 1972 | 2,800 | Fair |
| SH 13 Ml over Pine Ridge Gulch | 1973 | 2,800 | Fair |
| SH 13 Ml over RR Spur | 1978 | 2,800 | Fair |
All bridges nearby: Moffat County, CO bridge conditions · every bridge in Moffat County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.