US 40 Ml over Big Gulch
Moffat County, Colorado · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 40 Ml over Big Gulch in Moffat County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1958, making it 67 years old at the 2025 inventory.
- It carries about 940 vehicles a day (traffic count year 2020).
- Its listed owner is the state 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.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated April 2024, on a 24-month routine inspection cycle.
- 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 → (40.54292, -107.86542)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 81 ft |
| Location | 13.9 Mi East of Maybell |
| NBI structure number | B-05-A |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
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.