Willow Pass RD over Mt Diablo Crk
Good Condition82 years old7,200 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 0.8 Mi S Of SH 4 |
| Carries | Willow Pass RD |
| Crosses | Mt Diablo Crk |
| Coordinates | 38.00176, -122.00017 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 1066.9 ft (325.2 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 3187.0 sq m |
| Main Spans | 32 |
| Year Built | 1944 |
Traffic
| Avg Daily Traffic | 7,200 (1977) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 48 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28C0034 |