US Bridges

Calaroga Ave over State Route 92 & Ramp

Fair

Alameda County, California · 04-ALA-092-R6.03-HAY · Structure no. 33 0750

Built
2011
14 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
208 ft
2 main spans
Daily traffic
8,500
2010 count
Owner
State
State Highway Agency

About this bridge

Calaroga Ave over State Route 92 & Ramp is a prestressed concrete continuous box beam or girders - multiple carrying Calaroga Ave over State Route 92 & Ramp in Alameda County, California. It was built in 2011, so it is 14 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 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 8,500 vehicles a day, roughly 4% of them trucks, projected to reach 10,724 by 2043. The structure is 208 ft (63.4 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCalaroga Ave
CrossesState Route 92 & Ramp
Location04-ALA-092-R6.03-HAY
RouteCity Street 0
CountyAlameda County
StateCalifornia
Coordinates37.63938, -122.09729
Functional classUrban Minor Arterial

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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans2
Design loadHS 20
Structure length208 ft (63.4 m)
Longest span109 ft (33.1 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2010)
Projected traffic10,724 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Calaroga Ave over State Route 92 & Ramp built?

It was built in 2011, making it 14 years old in 2025.

What condition is Calaroga Ave over State Route 92 & 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 September 2023.

How much traffic does Calaroga Ave over State Route 92 & Ramp carry?

About 8,500 vehicles per day (2010 count), of which roughly 4% are trucks.

How long is Calaroga Ave over State Route 92 & Ramp?

The structure is 208 ft (63.4 m) long with a longest span of 109 ft (33.1 m) and a deck 52 ft wide.

Who owns Calaroga Ave over State Route 92 & Ramp?

It is owned by the State Highway Agency.