SR-121 over Steinaker Service Canal
Uintah County, Utah · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR-121 over Steinaker Service Canal in Uintah County, Utah, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1932 and reconstructed in 1970, making it 93 years old at the 2025 inventory.
- It carries about 8,200 vehicles a day (traffic count year 2017).
- Its listed owner is the state highway agency.
- It is one of 60 of the 90 inventoried bridges in Uintah County rated fair (66.7%); 3 (3.3%) 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 July 2023, 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 → (40.46263, -109.55851)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 46 ft |
| Location | In Maeser |
| NBI structure number | 0D 246 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2023 |
| 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 Utah department of transportation.
Busiest bridges in Uintah County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-40 (SR-40) over Uintah River | 1960 | 7,600 | Fair |
| US-40 (SR-40) over Sand Wash | 1959 | 7,600 | Fair |
| US-40 (SR-40) over Halfway Hollow Wash | 1965 | 6,411 | Fair |
| US-40 (SR-40) over Twelve Mile Wash | 1965 | 6,411 | Fair |
| US-191 (SR-191) over Ashley Creek | 2005 | 4,288 | Fair |
| US-40 (SR-40) over Green River | 1993 | 4,215 | Fair |
All bridges nearby: Uintah County, UT bridge conditions · every bridge in Uintah County · Utah bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.