US Bridges

Interstate 15 SB over Warm Springs Creek

Fair

Riverside County, California · 08-RIV-015-7.78-TMCA · Structure no. 56 0272L

Built
1951
74 years old, rebuilt 1977
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
170 ft
6 main spans
Daily traffic
64,750
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 SB over Warm Springs Creek is a concrete continuous slab carrying Interstate 15 SB over Warm Springs Creek in Riverside County, California. It was built in 1951 and reconstructed in 1977, so it is 74 years old, older 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 6 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 64,750 vehicles a day, roughly 7% of them trucks, projected to reach 107,423 by 2043. The structure is 170 ft (51.8 m) long and 81 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesInterstate 15 SB
CrossesWarm Springs Creek
Location08-RIV-015-7.78-TMCA
RouteInterstate 15
CountyRiverside County
StateCalifornia
Coordinates33.53721, -117.17289
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating45 US tons
Inventory rating31.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span28 ft (8.5 m)
Deck width81 ft (24.6 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,750 (2021)
Projected traffic107,423 by 2043
Trucks7%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 15 SB over Warm Springs Creek built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1977.

What condition is Interstate 15 SB over Warm Springs Creek 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 SB over Warm Springs Creek carry?

About 64,750 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Interstate 15 SB over Warm Springs Creek?

The structure is 170 ft (51.8 m) long with a longest span of 28 ft (8.5 m) and a deck 81 ft wide.

Who owns Interstate 15 SB over Warm Springs Creek?

It is owned by the State Highway Agency.