300 South over Hyrum Dam Spillway
Fair Condition91 years old1,000 vehicles/day
Location
| State | Utah |
| County | Cache |
| Location | 490 W 390 S Hyrum |
| Carries | 300 South |
| Crosses | Hyrum Dam Spillway |
| Coordinates | 41.62694, -111.87167 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Frame |
| Total Length | 58.1 ft (17.7 m) |
| Max Span | 17.1 ft (5.2 m) |
| Deck Width | 33.5 ft (10.2 m) |
| Deck Area | 180.5 sq m |
| Main Spans | 3 |
| Year Built | 1935 |
Traffic
| Avg Daily Traffic | 1,000 (2014) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Reclamation |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 005052D |