US Bridges

Interstate 580 over Foothill Blvd

Fair

Alameda County, California · 04-ALA-580-R35.10-OAK · Structure no. 33 0335

Built
1964
61 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
88 ft
1 main span
Daily traffic
140,000
2014 count
Owner
State
State Highway Agency

About this bridge

Interstate 580 over Foothill Blvd is a concrete box beam or girders - multiple carrying Interstate 580 over Foothill Blvd in Alameda County, California. It was built in 1964, so it is 61 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 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 140,000 vehicles a day, projected to reach 204,033 by 2041. The structure is 88 ft (26.8 m) long and 140 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesInterstate 580
CrossesFoothill Blvd
Location04-ALA-580-R35.10-OAK
RouteInterstate 580
Coordinates37.73733, -122.14039
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span49 ft (14.9 m)
Deck width140 ft (42.7 m)
Roadway width136 ft (41.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140,000 (2014)
Projected traffic204,033 by 2041
Trucks0%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
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 580 over Foothill Blvd built?

It was built in 1964, making it 61 years old in 2025.

What condition is Interstate 580 over Foothill Blvd 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 September 2023.

How much traffic does Interstate 580 over Foothill Blvd carry?

About 140,000 vehicles per day (2014 count).

How long is Interstate 580 over Foothill Blvd?

The structure is 88 ft (26.8 m) long with a longest span of 49 ft (14.9 m) and a deck 140 ft wide.

Who owns Interstate 580 over Foothill Blvd?

It is owned by the State Highway Agency.