US Bridges

Kidwell Road over Interstate 80

Good

Solano County, California · 04-SOL-080-41.30 · Structure no. 23 0195

Built
1992
33 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
244 ft
2 main spans
Daily traffic
740
1998 count
Owner
State
State Highway Agency

About this bridge

Kidwell Road over Interstate 80 is a prestressed concrete continuous box beam or girders - multiple carrying Kidwell Road over Interstate 80 in Solano County, California. It was built in 1992, so it is 33 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 740 vehicles a day, roughly 5% of them trucks, projected to reach 1,041 by 2042. The structure is 244 ft (74.4 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesKidwell Road
CrossesInterstate 80
Location04-SOL-080-41.30
RouteCounty Highway 0
Coordinates38.50551, -121.78612
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length244 ft (74.4 m)
Longest span122 ft (37.2 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic740 (1998)
Projected traffic1,041 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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 Kidwell Road over Interstate 80 built?

It was built in 1992, making it 33 years old in 2025.

What condition is Kidwell Road over Interstate 80 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does Kidwell Road over Interstate 80 carry?

About 740 vehicles per day (1998 count), of which roughly 5% are trucks.

How long is Kidwell Road over Interstate 80?

The structure is 244 ft (74.4 m) long with a longest span of 122 ft (37.2 m) and a deck 44 ft wide.

Who owns Kidwell Road over Interstate 80?

It is owned by the State Highway Agency.