Usona Road over Middle Fk Chowchilla Riv
Poor Condition56 years old190 vehicles/day
Location
| State | California |
| County | Mariposa |
| Location | 2.2 Mi South Of SR 49 |
| Carries | Usona Road |
| Crosses | Middle Fk Chowchilla Riv |
| Coordinates | 37.42947, -119.81869 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 42.3 ft (12.9 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 14.1 ft (4.3 m) |
| Deck Area | 55.5 sq m |
| Main Spans | 2 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 190 (1988) |
| Truck Traffic | 3% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 40C0066 |