US Bridges

Interstate 15 over Wild Wash

Fair

San Bernardino County, California · 08-SBD-015-55.69 · Structure no. 54 0500

Built
1958
67 years old, rebuilt 2005
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete Continuous
Length
195 ft
5 main spans
Daily traffic
64,000
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 over Wild Wash is a concrete continuous tee beam carrying Interstate 15 over Wild Wash in San Bernardino County, California. It was built in 1958 and reconstructed in 2005, so it is 67 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 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 64,000 vehicles a day, roughly 24% of them trucks, projected to reach 77,000 by 2042. The structure is 195 ft (59.4 m) long and 160 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

CarriesInterstate 15
CrossesWild Wash
Location08-SBD-015-55.69
RouteInterstate 15
Coordinates34.69782, -117.20706
Functional classRural 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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span44 ft (13.4 m)
Deck width160 ft (48.8 m)
Roadway width158 ft (48.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,000 (2022)
Projected traffic77,000 by 2042
Trucks24%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 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 over Wild Wash built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2005.

What condition is Interstate 15 over Wild Wash 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 April 2024.

How much traffic does Interstate 15 over Wild Wash carry?

About 64,000 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is Interstate 15 over Wild Wash?

The structure is 195 ft (59.4 m) long with a longest span of 44 ft (13.4 m) and a deck 160 ft wide.

Who owns Interstate 15 over Wild Wash?

It is owned by the State Highway Agency.