US Bridges

E580-STROBRIDGE Av over N238-E580 Connector Ramp

Fair

Alameda County, California · 04-ALA-580-R30.80 · Structure no. 33 0523K

Built
1988
37 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
240 ft
3 main spans
Daily traffic
3,000
2017 count
Owner
State
State Highway Agency

About this bridge

E580-STROBRIDGE Av over N238-E580 Connector Ramp is a prestressed concrete continuous box beam or girders - multiple carrying E580-STROBRIDGE Av over N238-E580 Connector Ramp in Alameda County, California. It was built in 1988, so it is 37 years old, younger 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 3,000 vehicles a day, roughly 1% of them trucks, projected to reach 8,043 by 2042. The structure is 240 ft (73.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesE580-STROBRIDGE Av
CrossesN238-E580 Connector Ramp
Location04-ALA-580-R30.80
RouteInterstate 580
CountyAlameda County
StateCalifornia
Coordinates37.68987, -122.09251
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length240 ft (73.2 m)
Longest span120 ft (36.6 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2017)
Projected traffic8,043 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 E580-STROBRIDGE Av over N238-E580 Connector Ramp built?

It was built in 1988, making it 37 years old in 2025.

What condition is E580-STROBRIDGE Av over N238-E580 Connector Ramp 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 April 2024.

How much traffic does E580-STROBRIDGE Av over N238-E580 Connector Ramp carry?

About 3,000 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is E580-STROBRIDGE Av over N238-E580 Connector Ramp?

The structure is 240 ft (73.2 m) long with a longest span of 120 ft (36.6 m) and a deck 28 ft wide.

Who owns E580-STROBRIDGE Av over N238-E580 Connector Ramp?

It is owned by the State Highway Agency.