State Route 37 over Simonds Slough
Good Condition67 years old34,000 vehicles/day
Location
| State | California |
| County | Marin |
| Location | 04-mrn-037-13.04-nvto |
| Carries | State Route 37 |
| Crosses | Simonds Slough |
| Coordinates | 38.09760, -122.52115 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 20.3 ft (6.2 m) |
| Max Span | 10.2 ft (3.1 m) |
| Deck Width | 100.7 ft (30.7 m) |
| Deck Area | 190.3 sq m |
| Main Spans | 2 |
| Year Built | 1959 |
Traffic
| Avg Daily Traffic | 34,000 (2009) |
| Truck Traffic | 4% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 27 0012 |