US Bridges

Oakvale Road over Interstate 680

Fair

Contra Costa County, California · 04-CC-680-14.56-WLC · Structure no. 28 0116

Built
1997
28 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
519 ft
4 main spans
Daily traffic
7,100
2010 count
Owner
State
State Highway Agency

About this bridge

Oakvale Road over Interstate 680 is a prestressed concrete continuous box beam or girders - multiple carrying Oakvale Road over Interstate 680 in Contra Costa County, California. It was built in 1997, so it is 28 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 7,100 vehicles a day, roughly 2% of them trucks, projected to reach 4,450 by 2047. The structure is 519 ft (158.3 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesOakvale Road
CrossesInterstate 680
Location04-CC-680-14.56-WLC
RouteCity Street 0
CountyContra Costa County
StateCalifornia
Coordinates37.90153, -122.07129
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be 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 spans4
Design loadHS 20 + Mod
Structure length519 ft (158.3 m)
Longest span184 ft (56 m)
Deck width40 ft (12.2 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic7,100 (2010)
Projected traffic4,450 by 2047
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 Oakvale Road over Interstate 680 built?

It was built in 1997, making it 28 years old in 2025.

What condition is Oakvale Road over Interstate 680 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 January 2025.

How much traffic does Oakvale Road over Interstate 680 carry?

About 7,100 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Oakvale Road over Interstate 680?

The structure is 519 ft (158.3 m) long with a longest span of 184 ft (56 m) and a deck 40 ft wide.

Who owns Oakvale Road over Interstate 680?

It is owned by the State Highway Agency.