State Route 4 over North Fork Mokelumne Riv
Good Condition89 years old490 vehicles/day
Location
| State | California |
| County | Alpine |
| Location | 10-alp-004-12.94 |
| Carries | State Route 4 |
| Crosses | North Fork Mokelumne Riv |
| Coordinates | 38.53726, -119.90064 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 1 (Imminent Failure) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 28.9 ft (8.8 m) |
| Max Span | 25.9 ft (7.9 m) |
| Deck Width | 32.5 ft (9.9 m) |
| Deck Area | 87.1 sq m |
| Main Spans | 1 |
| Year Built | 1937 (reconstructed 1986) |
Traffic
| Avg Daily Traffic | 490 (2019) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 31 0009 |