State Route 37 WB over Novato Creek
FairMarin County, California · 04-MRN-037-11.96-NVTO · Structure no. 27 0011L
- Built
- 1959
- 66 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 720 ft
- 30 main spans
- Daily traffic
- 17,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 37 WB over Novato Creek is a concrete continuous slab carrying State Route 37 WB over Novato Creek in Marin County, California. It was built in 1959, so it is 66 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 17,000 vehicles a day, roughly 4% of them trucks, projected to reach 27,068 by 2042. The structure is 720 ft (219.5 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 37 WB over Novato Creek built?
It was built in 1959, making it 66 years old in 2025.
What condition is State Route 37 WB over Novato Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does State Route 37 WB over Novato Creek carry?
About 17,000 vehicles per day (2009 count), of which roughly 4% are trucks.
How long is State Route 37 WB over Novato Creek?
The structure is 720 ft (219.5 m) long with a longest span of 24 ft (7.3 m) and a deck 33 ft wide.
Who owns State Route 37 WB over Novato Creek?
It is owned by the State Highway Agency.