Bollinger Canyon over Main Branch Alamo Creek
Fair Condition20 years old5,000 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 1 Mi E Crow Canyon RD |
| Carries | Bollinger Canyon |
| Crosses | Main Branch Alamo Creek |
| Coordinates | 37.76912, -121.90799 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 137.8 ft (42 m) |
| Max Span | 133.9 ft (40.8 m) |
| Deck Width | 55.8 ft (17 m) |
| Deck Area | 714 sq m |
| Main Spans | 1 |
| Year Built | 2006 |
Traffic
| Avg Daily Traffic | 5,000 (2020) |
| Truck Traffic | 1% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28C0240L |