State Route 37 over Sonoma Creek
FairSolano County, California · 04-SOL-037-R0.01 · Structure no. 23 0063
- Built
- 1969
- 56 years old, rebuilt 2002
- Condition
- Fair
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 1,804 ft
- 22 main spans
- Daily traffic
- 32,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 37 over Sonoma Creek is a prestressed concrete stringer/multi-beam or girder carrying State Route 37 over Sonoma Creek in Solano County, California. It was built in 1969 and reconstructed in 2002, so it is 56 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 5 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 32,000 vehicles a day, roughly 17% of them trucks, projected to reach 50,435 by 2040. The structure is 1,804 ft (549.9 m) long and 53 ft wide. If it were closed, the detour would be 36 mi (58 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 37 over Sonoma Creek built?
It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2002.
What condition is State Route 37 over Sonoma 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 December 2023.
How much traffic does State Route 37 over Sonoma Creek carry?
About 32,000 vehicles per day (2009 count), of which roughly 17% are trucks.
How long is State Route 37 over Sonoma Creek?
The structure is 1,804 ft (549.9 m) long with a longest span of 82 ft (25 m) and a deck 53 ft wide.
Who owns State Route 37 over Sonoma Creek?
It is owned by the State Highway Agency.