Duncan Road over Mormon Slough
Good Condition53 years old1,839 vehicles/day
Location
| State | California |
| County | San Joaquin |
| Location | 0.6 Mi N Copperopolis RD |
| Carries | Duncan Road |
| Crosses | Mormon Slough |
| Coordinates | 37.98114, -121.09476 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 173.2 ft (52.8 m) |
| Max Span | 68.2 ft (20.8 m) |
| Deck Width | 32.5 ft (9.9 m) |
| Deck Area | 522.7 sq m |
| Main Spans | 3 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 1,839 (2007) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 29C0111 |