US Bridges

Interstate 15 SB over Wasson Canyon Wash

Good

Riverside County, California · 08-RIV-015-21.57 · Structure no. 56 0739L

Built
1982
43 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
112 ft
4 main spans
Daily traffic
61,000
2015 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 SB over Wasson Canyon Wash is a concrete continuous slab carrying Interstate 15 SB over Wasson Canyon Wash in Riverside County, California. It was built in 1982, so it is 43 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 61,000 vehicles a day, roughly 11% of them trucks, projected to reach 97,518 by 2046. The structure is 112 ft (34.1 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 15 SB
CrossesWasson Canyon Wash
Location08-RIV-015-21.57
RouteInterstate 15
Coordinates33.68406, -117.33037
Functional classUrban 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 protection8 Very GoodNo problems noted.
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 rating46.4 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length112 ft (34.1 m)
Longest span28 ft (8.5 m)
Deck width69 ft (21 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,000 (2015)
Projected traffic97,518 by 2046
Trucks11%
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 Wasson Canyon Wash built?

It was built in 1982, making it 43 years old in 2025.

What condition is Interstate 15 SB over Wasson Canyon 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 Wasson Canyon Wash carry?

About 61,000 vehicles per day (2015 count), of which roughly 11% are trucks.

How long is Interstate 15 SB over Wasson Canyon Wash?

The structure is 112 ft (34.1 m) long with a longest span of 28 ft (8.5 m) and a deck 69 ft wide.

Who owns Interstate 15 SB over Wasson Canyon Wash?

It is owned by the State Highway Agency.