US Bridges

California Street over Interstate 80

Fair

Contra Costa County, California · 04-CC-080-11.34 · Structure no. 28 0387

Built
2006
19 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
190 ft
2 main spans
Daily traffic
900
2019 count
Owner
State
State Highway Agency

About this bridge

California Street over Interstate 80 is a prestressed concrete continuous box beam or girders - multiple carrying California Street over Interstate 80 in Contra Costa County, California. It was built in 2006, so it is 19 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 900 vehicles a day, roughly 3% of them trucks, projected to reach 1,388 by 2042. The structure is 190 ft (58 m) long and 41 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCalifornia Street
CrossesInterstate 80
Location04-CC-080-11.34
RouteCity Street 0
Coordinates38.03019, -122.25567
Functional classUrban Collector

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum 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 length190 ft (58 m)
Longest span95 ft (29 m)
Deck width41 ft (12.4 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2019)
Projected traffic1,388 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed8.1 mi (13 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 California Street over Interstate 80 built?

It was built in 2006, making it 19 years old in 2025.

What condition is California Street over Interstate 80 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 July 2023.

How much traffic does California Street over Interstate 80 carry?

About 900 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is California Street over Interstate 80?

The structure is 190 ft (58 m) long with a longest span of 95 ft (29 m) and a deck 41 ft wide.

Who owns California Street over Interstate 80?

It is owned by the State Highway Agency.