US Bridges

Olivera Road over State Route 242

Fair

Contra Costa County, California · 04-CC-242-R2.79-CND · Structure no. 28 0248

Built
1978
47 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
319 ft
3 main spans
Daily traffic
17,400
2009 count
Owner
State
State Highway Agency

About this bridge

Olivera Road over State Route 242 is a prestressed concrete continuous box beam or girders - multiple carrying Olivera Road over State Route 242 in Contra Costa County, California. It was built in 1978, so it is 47 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 17,400 vehicles a day, roughly 2% of them trucks, projected to reach 25,996 by 2042. The structure is 319 ft (97.2 m) long and 76 ft wide.

Location

Open in Google Maps
CarriesOlivera Road
CrossesState Route 242
Location04-CC-242-R2.79-CND
RouteCity Street 0
CountyContra Costa County
StateCalifornia
Coordinates37.99756, -122.03923
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.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum 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 spans3
Design loadHS 20
Structure length319 ft (97.2 m)
Longest span126 ft (38.4 m)
Deck width76 ft (23.1 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,400 (2009)
Projected traffic25,996 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
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 Olivera Road over State Route 242 built?

It was built in 1978, making it 47 years old in 2025.

What condition is Olivera Road over State Route 242 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 2024.

How much traffic does Olivera Road over State Route 242 carry?

About 17,400 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is Olivera Road over State Route 242?

The structure is 319 ft (97.2 m) long with a longest span of 126 ft (38.4 m) and a deck 76 ft wide.

Who owns Olivera Road over State Route 242?

It is owned by the State Highway Agency.