US Bridges

Interstate 15 NB over Old Temescal Road

Fair

Riverside County, California · 08-RIV-015-39.40 · Structure no. 56 0644R

Built
1975
50 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
96,000
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 NB over Old Temescal Road is a prestressed concrete box beam or girders - multiple carrying Interstate 15 NB over Old Temescal Road in Riverside County, California. It was built in 1975, so it is 50 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 96,000 vehicles a day, roughly 17% of them trucks, projected to reach 115,585 by 2042. The structure is 104 ft (31.7 m) long and 94 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInterstate 15 NB
CrossesOld Temescal Road
Location08-RIV-015-39.40
RouteInterstate 15
CountyRiverside County
StateCalifornia
Coordinates33.8538, -117.53504
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.8 US tons
Inventory rating55.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span104 ft (31.7 m)
Deck width94 ft (28.7 m)
Roadway width91 ft (27.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96,000 (2022)
Projected traffic115,585 by 2042
Trucks17%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 Old Temescal Road built?

It was built in 1975, making it 50 years old in 2025.

What condition is Interstate 15 NB over Old Temescal Road 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 February 2024.

How much traffic does Interstate 15 NB over Old Temescal Road carry?

About 96,000 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Interstate 15 NB over Old Temescal Road?

The structure is 104 ft (31.7 m) long with a longest span of 104 ft (31.7 m) and a deck 94 ft wide.

Who owns Interstate 15 NB over Old Temescal Road?

It is owned by the State Highway Agency.