US Bridges

State Route 24 WB over 45th Street

Good

Alameda County, California · 04-ALA-024-R2.47-OAK · Structure no. 33 0364L

Built
1970
55 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
180 ft
3 main spans
Daily traffic
75,500
2012 count
Owner
State
State Highway Agency

About this bridge

State Route 24 WB over 45th Street is a concrete continuous box beam or girders - multiple carrying State Route 24 WB over 45th Street 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 75,500 vehicles a day, roughly 3% of them trucks, projected to reach 97,226 by 2044. The structure is 180 ft (54.9 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 24 WB
Crosses45th Street
Location04-ALA-024-R2.47-OAK
RouteState Highway 24
Coordinates37.83317, -122.26639
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length180 ft (54.9 m)
Longest span65 ft (19.8 m)
Deck width69 ft (21 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,500 (2012)
Projected traffic97,226 by 2044
Trucks3%
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 WB over 45th Street built?

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

What condition is State Route 24 WB over 45th Street 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 January 2024.

How much traffic does State Route 24 WB over 45th Street carry?

About 75,500 vehicles per day (2012 count), of which roughly 3% are trucks.

How long is State Route 24 WB over 45th Street?

The structure is 180 ft (54.9 m) long with a longest span of 65 ft (19.8 m) and a deck 69 ft wide.

Who owns State Route 24 WB over 45th Street?

It is owned by the State Highway Agency.