State Route 12 over Mokelumne River
Fair Condition84 years old15,000 vehicles/day
Location
| State | California |
| County | San Joaquin |
| Location | 10-sj-012-0.01 |
| Carries | State Route 12 |
| Crosses | Mokelumne River |
| Coordinates | 38.12689, -121.58239 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Movable - Swing |
| Total Length | 1436.0 ft (437.7 m) |
| Max Span | 143.7 ft (43.8 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 4814.7 sq m |
| Main Spans | 2 |
| Year Built | 1942 (reconstructed 1978) |
Traffic
| Avg Daily Traffic | 15,000 (2009) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 29 0043 |