US-191 (SR-191) over Big Mule Shoe Wash Tun.
San Juan County, Utah · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US-191 (SR-191) over Big Mule Shoe Wash Tun. in San Juan County, Utah, 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 1940, making it 85 years old at the 2025 inventory.
- It carries about 6,237 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 12 of the 49 inventoried bridges in San Juan County rated good (24.5%); 0 (0.0%) 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 → (38.36017, -109.43472)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Culvert |
| Length | about 20 ft |
| Location | 4.3 Mi.no. of Lasal Jct. |
| NBI structure number | 0V 173 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Utah department of transportation.
Busiest bridges in San Juan County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-191 (SR-191) over Mormon Tank Wash | 1998 | 6,237 | Fair |
| US-191 (SR-191) over Kane Springs Wash | 1996 | 6,237 | Fair |
| US-191 (SR-191) over Coyote Wash | 2001 | 5,296 | Good |
| US-191 (SR-191) over Hatch Wash | 1956 | 4,080 | Fair |
| US-191 (SR-191) over Peters Wash | 1959 | 3,735 | Fair |
| US-491 over Vega Wash | 1955 | 3,551 | Fair |
All bridges nearby: San Juan County, UT bridge conditions · every bridge in San Juan County · Utah bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.