US Bridges

Interstate 580 over Davenport Ave

Fair

Alameda County, California · 04-ALA-580-R39.37-OAK · Structure no. 33 0343

Built
1965
60 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
134,000
2014 count
Owner
State
State Highway Agency

About this bridge

Interstate 580 over Davenport Ave is a concrete continuous box beam or girders - multiple carrying Interstate 580 over Davenport Ave in Alameda County, California. It was built in 1965, so it is 60 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 134,000 vehicles a day, roughly 1% of them trucks, projected to reach 207,706 by 2041. The structure is 110 ft (33.5 m) long and 142 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 580
CrossesDavenport Ave
Location04-ALA-580-R39.37-OAK
RouteInterstate 580
Coordinates37.78417, -122.18049
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.
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 alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating31.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span43 ft (13.1 m)
Deck width142 ft (43.3 m)
Roadway width136 ft (41.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic134,000 (2014)
Projected traffic207,706 by 2041
Trucks1%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 Davenport Ave built?

It was built in 1965, making it 60 years old in 2025.

What condition is Interstate 580 over Davenport Ave 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 Davenport Ave carry?

About 134,000 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Interstate 580 over Davenport Ave?

The structure is 110 ft (33.5 m) long with a longest span of 43 ft (13.1 m) and a deck 142 ft wide.

Who owns Interstate 580 over Davenport Ave?

It is owned by the State Highway Agency.