US Bridges

State Route 37 over Mini Drive

Fair

Solano County, California · 04-SOL-037-R9.98-VAL · Structure no. 23 0220

Built
2005
20 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
161 ft
1 main span
Daily traffic
29,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 37 over Mini Drive is a prestressed concrete box beam or girders - multiple carrying State Route 37 over Mini Drive in Solano County, California. It was built in 2005, so it is 20 years old, younger 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 29,000 vehicles a day, roughly 25% of them trucks, projected to reach 61,609 by 2040. The structure is 161 ft (49 m) long and 120 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesState Route 37
CrossesMini Drive
Location04-SOL-037-R9.98-VAL
RouteState Highway 37
CountySolano County
StateCalifornia
Coordinates38.14241, -122.2499
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length161 ft (49 m)
Longest span161 ft (49 m)
Deck width120 ft (36.6 m)
Roadway width115 ft (35 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,000 (2009)
Projected traffic61,609 by 2040
Trucks25%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 37 over Mini Drive built?

It was built in 2005, making it 20 years old in 2025.

What condition is State Route 37 over Mini Drive 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 Mini Drive carry?

About 29,000 vehicles per day (2009 count), of which roughly 25% are trucks.

How long is State Route 37 over Mini Drive?

The structure is 161 ft (49 m) long with a longest span of 161 ft (49 m) and a deck 120 ft wide.

Who owns State Route 37 over Mini Drive?

It is owned by the State Highway Agency.