US Bridges

Interstate 15 SB over Indian Wash

Good

Riverside County, California · 08-RIV-015-30.09 · Structure no. 56 0677L

Built
1980
45 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
131 ft
1 main span
Daily traffic
64,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 SB over Indian Wash is a prestressed concrete box beam or girders - multiple carrying Interstate 15 SB over Indian Wash in Riverside County, California. It was built in 1980, so it is 45 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 64,000 vehicles a day, roughly 13% of them trucks, projected to reach 104,959 by 2042. The structure is 131 ft (39.9 m) long and 74 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 15 SB
CrossesIndian Wash
Location08-RIV-015-30.09
RouteInterstate 15
Coordinates33.7461, -117.44768
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating82.5 US tons
Inventory rating51.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length131 ft (39.9 m)
Longest span131 ft (39.9 m)
Deck width74 ft (22.5 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,000 (2021)
Projected traffic104,959 by 2042
Trucks13%
Lanes on structure3
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 Indian Wash built?

It was built in 1980, making it 45 years old in 2025.

What condition is Interstate 15 SB over Indian Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Interstate 15 SB over Indian Wash carry?

About 64,000 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Interstate 15 SB over Indian Wash?

The structure is 131 ft (39.9 m) long with a longest span of 131 ft (39.9 m) and a deck 74 ft wide.

Who owns Interstate 15 SB over Indian Wash?

It is owned by the State Highway Agency.