State Route 4 WB over Contra Costa Canal
Good Condition29 years old63,500 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-004-r20.32 |
| Carries | State Route 4 WB |
| Crosses | Contra Costa Canal |
| Coordinates | 38.01901, -121.93829 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 48.9 ft (14.9 m) |
| Max Span | 46.6 ft (14.2 m) |
| Deck Width | 94.2 ft (28.7 m) |
| Deck Area | 427.6 sq m |
| Main Spans | 1 |
| Year Built | 1997 |
Traffic
| Avg Daily Traffic | 63,500 (2017) |
| Truck Traffic | 6% |
| Lanes On Bridge | 6 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28 0093L |