US Bridges

Interstate 580 over ST RTE 24-I 980

Fair

Alameda County, California · 04-ALA-580-45.15-OAK · Structure no. 33 0298

Built
1961
64 years old, rebuilt 1969
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
279 ft
3 main spans
Daily traffic
201,000
2017 count
Owner
State
State Highway Agency

About this bridge

Interstate 580 over ST RTE 24-I 980 is a concrete continuous box beam or girders - multiple carrying Interstate 580 over ST RTE 24-I 980 in Alameda County, California. It was built in 1961 and reconstructed in 1969, so it is 64 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 201,000 vehicles a day, roughly 2% of them trucks, projected to reach 440,748 by 2042. The structure is 279 ft (84.9 m) long and 127 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInterstate 580
CrossesST RTE 24-I 980
Location04-ALA-580-45.15-OAK
RouteInterstate 580
CountyAlameda County
StateCalifornia
Coordinates37.82436, -122.26769
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating47.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length279 ft (84.9 m)
Longest span99 ft (30.2 m)
Deck width127 ft (38.6 m)
Roadway width122 ft (37.2 m)
Vertical clearance over deck17 ft (5 m)

Traffic and service

Average daily traffic201,000 (2017)
Projected traffic440,748 by 2042
Trucks2%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 580 over ST RTE 24-I 980 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1969.

What condition is Interstate 580 over ST RTE 24-I 980 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 August 2024.

How much traffic does Interstate 580 over ST RTE 24-I 980 carry?

About 201,000 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Interstate 580 over ST RTE 24-I 980?

The structure is 279 ft (84.9 m) long with a longest span of 99 ft (30.2 m) and a deck 127 ft wide.

Who owns Interstate 580 over ST RTE 24-I 980?

It is owned by the State Highway Agency.