SR-21 over Union Pacific Railroad
Beaver County, Utah · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR-21 over Union Pacific Railroad in Beaver County, Utah, 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 2007, making it 18 years old at the 2025 inventory.
- It carries about 2,759 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 8 of the 53 inventoried bridges in Beaver County rated good (15.1%); 2 (3.8%) 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 → (38.38769, -113.01418)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 123 ft |
| Location | South end of Milford |
| NBI structure number | 0F 728 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Utah department of transportation.
Busiest bridges in Beaver County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-15 (SR-15) Nbl over Deer Crossing | 1975 | 25,503 | Fair |
| I-15 (SR-15) Nbl over County Access Road | 1975 | 25,503 | Fair |
| I-15 (SR-15) Sbl over Deer Crossing | 1984 | 25,503 | Fair |
| I-15 (SR-15) Sbl over County Access Road | 1975 | 25,503 | Fair |
| I-15 (SR-15)NBRamp over North Wash | 1964 | 24,161 | Fair |
| I-15 (SR-15) Nbl over SR-160 | 1970 | 24,161 | Fair |
All bridges nearby: Beaver County, UT bridge conditions · every bridge in Beaver County · Utah bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.