US Bridges

State Route 4 EB over San Jose Avenue

Good

Contra Costa County, California · 04-CC-004-M34.90 · Structure no. 28 0371R

Built
2013
12 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
113 ft
1 main span
Daily traffic
10,000
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 4 EB over San Jose Avenue is a prestressed concrete box beam or girders - multiple carrying State Route 4 EB over San Jose Avenue in Contra Costa County, California. It was built in 2013, so it is 12 years old, younger 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 10,000 vehicles a day, roughly 5% of them trucks, projected to reach 23,311 by 2045. The structure is 113 ft (34.5 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesState Route 4 EB
CrossesSan Jose Avenue
Location04-CC-004-M34.90
RouteState Highway 4
Coordinates37.94, -121.74026
Functional classUrban Other Principal Arterial

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length113 ft (34.5 m)
Longest span108 ft (32.8 m)
Deck width56 ft (17 m)
Roadway width53 ft (16.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2017)
Projected traffic23,311 by 2045
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 4 EB over San Jose Avenue built?

It was built in 2013, making it 12 years old in 2025.

What condition is State Route 4 EB over San Jose Avenue 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 June 2023.

How much traffic does State Route 4 EB over San Jose Avenue carry?

About 10,000 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is State Route 4 EB over San Jose Avenue?

The structure is 113 ft (34.5 m) long with a longest span of 108 ft (32.8 m) and a deck 56 ft wide.

Who owns State Route 4 EB over San Jose Avenue?

It is owned by the State Highway Agency.