Walnut ST over State Route 37
FairSolano County, California · 04-SOL-037-R7.21-VAL · Structure no. 23 0109
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 831 ft
- 11 main spans
- Daily traffic
- 2,000
- 1998 count
- Owner
- State
- State Highway Agency
About this bridge
Walnut ST over State Route 37 is a concrete continuous box beam or girders - multiple carrying Walnut ST over State Route 37 in Solano County, California. It was built in 1967, so it is 58 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 2,000 vehicles a day, roughly 5% of them trucks, projected to reach 2,800 by 2044. The structure is 831 ft (253.3 m) long and 52 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 | 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Walnut ST over State Route 37 built?
It was built in 1967, making it 58 years old in 2025.
What condition is Walnut ST over State Route 37 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 Walnut ST over State Route 37 carry?
About 2,000 vehicles per day (1998 count), of which roughly 5% are trucks.
How long is Walnut ST over State Route 37?
The structure is 831 ft (253.3 m) long with a longest span of 69 ft (21 m) and a deck 52 ft wide.
Who owns Walnut ST over State Route 37?
It is owned by the State Highway Agency.