Patterson Pass RD over Arroyo Seco
Good Condition39 years old5,000 vehicles/day
Location
| State | California |
| County | Alameda |
| Location | 500 E Mulqueeney ST |
| Carries | Patterson Pass RD |
| Crosses | Arroyo Seco |
| Coordinates | 37.69297, -121.73521 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 9 (Excellent) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 37.4 ft (11.4 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Width | 91.9 ft (28 m) |
| Deck Area | 319.2 sq m |
| Main Spans | 3 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 5,000 (2009) |
| Truck Traffic | 2% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 48 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 33C0381 |