US Bridges

Interstate 15 NB over California Oaks RD

Fair

Riverside County, California · 08-RIV-015-10.59 · Structure no. 56 0720R

Built
1979
46 years old, rebuilt 2012
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
129 ft
1 main span
Daily traffic
125,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 NB over California Oaks RD is a prestressed concrete box beam or girders - multiple carrying Interstate 15 NB over California Oaks RD in Riverside County, California. It was built in 1979 and reconstructed in 2012, so it is 46 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 125,000 vehicles a day, roughly 7% of them trucks, projected to reach 147,433 by 2043. The structure is 129 ft (39.2 m) long and 71 ft wide.

Location

Open in Google Maps
CarriesInterstate 15 NB
CrossesCalifornia Oaks RD
Location08-RIV-015-10.59
RouteInterstate 15
CountyRiverside County
StateCalifornia
Coordinates33.56569, -117.20667
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
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 alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length129 ft (39.2 m)
Longest span129 ft (39.2 m)
Deck width71 ft (21.7 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125,000 (2021)
Projected traffic147,433 by 2043
Trucks7%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Interstate 15 NB over California Oaks RD built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2012.

What condition is Interstate 15 NB over California Oaks RD 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 December 2023.

How much traffic does Interstate 15 NB over California Oaks RD carry?

About 125,000 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Interstate 15 NB over California Oaks RD?

The structure is 129 ft (39.2 m) long with a longest span of 129 ft (39.2 m) and a deck 71 ft wide.

Who owns Interstate 15 NB over California Oaks RD?

It is owned by the State Highway Agency.