US Bridges

Interstate 80 EB over Carquinez Strait UP RR

Fair

Contra Costa County, California · 04-CC-080-13.50 · Structure no. 23 0015R

Built
1958
67 years old
Condition
Fair
inspected July 2023
Type
Truss - Thru
Steel Continuous
Length
5,209 ft
5 main spans
Daily traffic
128,000
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 80 EB over Carquinez Strait UP RR is a steel continuous truss - thru carrying Interstate 80 EB over Carquinez Strait UP RR in Contra Costa County, California. It was built in 1958, so it is 67 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 6 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 128,000 vehicles a day, roughly 6% of them trucks, projected to reach 192,000 by 2040. The structure is 5,209 ft (1,587.7 m) long and 58 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesInterstate 80 EB
CrossesCarquinez Strait UP RR
Location04-CC-080-13.50
RouteInterstate 80
CountyContra Costa County
StateCalifornia
Coordinates38.05222, -122.22778
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5 (+18 approach)
Design loadHS 20
Structure length5,209 ft (1,587.7 m)
Longest span1,100 ft (335.3 m)
Deck width58 ft (17.6 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deck21 ft (6.3 m)

Traffic and service

Average daily traffic128,000 (2019)
Projected traffic192,000 by 2040
Trucks6%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed29.8 mi (48 km)
TollToll bridge
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Interstate 80 EB over Carquinez Strait UP RR built?

It was built in 1958, making it 67 years old in 2025.

What condition is Interstate 80 EB over Carquinez Strait UP RR 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 Interstate 80 EB over Carquinez Strait UP RR carry?

About 128,000 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is Interstate 80 EB over Carquinez Strait UP RR?

The structure is 5,209 ft (1,587.7 m) long with a longest span of 1,100 ft (335.3 m) and a deck 58 ft wide.

Who owns Interstate 80 EB over Carquinez Strait UP RR?

It is owned by the State Highway Agency.