US Bridges

Interstate 80 over El Portal Drive

Poor

Contra Costa County, California · 04-CC-080-5.25 · Structure no. 28 0122

Built
1956
69 years old, rebuilt 1997
Condition
Poor
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
158 ft
3 main spans
Daily traffic
179,000
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 80 over El Portal Drive is a concrete continuous tee beam carrying Interstate 80 over El Portal Drive in Contra Costa County, California. It was built in 1956 and reconstructed in 1997, so it is 69 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 179,000 vehicles a day, roughly 3% of them trucks, projected to reach 234,643 by 2045. The structure is 158 ft (48.2 m) long and 125 ft wide.

CarriesInterstate 80
CrossesEl Portal Drive
Location04-CC-080-5.25
RouteInterstate 80
Coordinates37.96608, -122.32241
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.6 US tons
Inventory rating50.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length158 ft (48.2 m)
Longest span61 ft (18.6 m)
Deck width125 ft (38.2 m)
Roadway width119 ft (36.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic179,000 (2019)
Projected traffic234,643 by 2045
Trucks3%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 Interstate 80 over El Portal Drive built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1997.

What condition is Interstate 80 over El Portal Drive in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does Interstate 80 over El Portal Drive carry?

About 179,000 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Interstate 80 over El Portal Drive?

The structure is 158 ft (48.2 m) long with a longest span of 61 ft (18.6 m) and a deck 125 ft wide.

Who owns Interstate 80 over El Portal Drive?

It is owned by the State Highway Agency.