Bollinger Canyon over West Branch Alamo Creek
Good Condition21 years old2,760 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 0.1 Mi W. Of Dougherty RD |
| Carries | Bollinger Canyon |
| Crosses | West Branch Alamo Creek |
| Coordinates | 37.77325, -121.92596 |
Condition Ratings
| Overall Condition | Good |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Arch - Deck |
| Total Length | 73.8 ft (22.5 m) |
| Max Span | 40.4 ft (12.3 m) |
| Deck Area | 816.8 sq m |
| Main Spans | 1 |
| Year Built | 2005 |
Traffic
| Avg Daily Traffic | 2,760 (2020) |
| Truck Traffic | 2% |
| Lanes On Bridge | 7 |
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 | 28C0244 |