US Bridges

State Route 24 EB over College Ave & Forest ST

Good

Alameda County, California · 04-ALA-024-R3.54-OAK · Structure no. 33 0417R

Built
1970
55 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
1,350 ft
18 main spans
Daily traffic
143,000
2010 count
Owner
State
State Highway Agency

About this bridge

State Route 24 EB over College Ave & Forest ST is a concrete continuous box beam or girders - multiple carrying State Route 24 EB over College Ave & Forest ST in Alameda County, California. It was built in 1970, so it is 55 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 143,000 vehicles a day, roughly 2% of them trucks, projected to reach 267,887 by 2046. The structure is 1,350 ft (411.5 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 24 EB
CrossesCollege Ave & Forest ST
Location04-ALA-024-R3.54-OAK
RouteState Highway 24
Coordinates37.84331, -122.25428
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans18
Design loadHS 20
Structure length1,350 ft (411.5 m)
Longest span105 ft (32 m)
Deck width69 ft (21 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic143,000 (2010)
Projected traffic267,887 by 2046
Trucks2%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 State Route 24 EB over College Ave & Forest ST built?

It was built in 1970, making it 55 years old in 2025.

What condition is State Route 24 EB over College Ave & Forest ST in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does State Route 24 EB over College Ave & Forest ST carry?

About 143,000 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is State Route 24 EB over College Ave & Forest ST?

The structure is 1,350 ft (411.5 m) long with a longest span of 105 ft (32 m) and a deck 69 ft wide.

Who owns State Route 24 EB over College Ave & Forest ST?

It is owned by the State Highway Agency.