I25 Ml / Frontage over Mayne Arroyo
Huerfano County, Colorado · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I25 Ml / Frontage over Mayne Arroyo in Huerfano County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1965 and reconstructed in 1969, making it 60 years old at the 2025 inventory.
- It carries about 11,000 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 65 of the 94 inventoried bridges in Huerfano County rated fair (69.1%); 2 (2.1%) 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 → (37.56023, -104.72263)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 25 ft |
| Location | 5.5 Mi S of Sh10-wlsnbrg. |
| NBI structure number | N-18-C |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Huerfano County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 25 Ml over Draw | 1948 | 14,000 | Good |
| I 25 NE Ramp over Draw R | 1965 | 14,000 | Fair |
| I 25 Ml over Draw | 1930 | 14,000 | Fair |
| I 25 Ml Sbnd over Apache Creek | 1965 | 7,000 | Good |
| I 25 Ml Sbnd over Pope Arroyo | 1965 | 7,000 | Fair |
| Ramp to I 25 Sbnd over Draw R | 1965 | 7,000 | Good |
All bridges nearby: Huerfano County, CO bridge conditions · every bridge in Huerfano County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.