SH 370 Ml over Empire Canal
Rio Grande County, Colorado · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 370 Ml over Empire Canal in Rio Grande 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 1955, making it 70 years old at the 2025 inventory.
- It carries about 330 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 55 of the 73 inventoried bridges in Rio Grande County rated fair (75.3%); 0 (0.0%) 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 February 2025, 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 → (37.42983, -106.0419)
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 | Concrete tee beam |
| Length | about 52 ft |
| Location | 5.9 Mi E of Jct SH 15 |
| NBI structure number | O-12-K |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2025 |
| 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 Grande County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 160 Ml over Empire Canal | 1972 | 7,700 | Fair |
| US 160 Ml over Willow Creek | 1977 | 4,800 | Good |
| US 160 Ml over S Fk Rio Grande River | 1981 | 4,800 | Fair |
| US 160 Ml over Monte Vista Canal | 1970 | 4,600 | Fair |
| US 285 Ml over Rio Grande | 1971 | 4,500 | Good |
| SH 112 Ml over Farmers Union Canal | 1938 | 2,300 | Fair |
All bridges nearby: Rio Grande County, CO bridge conditions · every bridge in Rio Grande County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.