County Road 15 over Milk Creek
Rio Blanco County, Colorado · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road 15 over Milk Creek in Rio Blanco 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 1985, making it 40 years old at the 2025 inventory.
- It carries about 41 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 38 of the 56 inventoried bridges in Rio Blanco County rated fair (67.9%); 2 (3.6%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated good in the 2024 inventory and is now fair (substructure 7 to 6).
- Its most recent inspection on record is dated September 2024, on a 24-month routine inspection cycle.
- 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 → (40.21161, -107.67705)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel girder and floorbeam |
| Length | about 30 ft |
| Location | 0.8 M S of Moffat Co Line |
| NBI structure number | RIOB-015-16.75 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Rio Blanco County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SH 64 Ml over White River | 1948 | 3,500 | Fair |
| SH 64 Ml over Stinking Water Creek | 1982 | 2,400 | Fair |
| SH 13 Ml over White River | 2000 | 2,100 | Good |
| SH 64 Ml over Douglas Creek | 1990 | 1,600 | Good |
| Tenth Street over White River | 1998 | 1,443 | Fair |
| SH 13 Ml over Curtis Creek | 1958 | 1,300 | Fair |
All bridges nearby: Rio Blanco County, CO bridge conditions · every bridge in Rio Blanco County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.