US Bridges

Interstate 40 over Mesquite Wash

Fair

San Bernardino County, California · 08-SBD-040-147.25 · Structure no. 54 0505R

Built
1957
68 years old
Condition
Fair
inspected April 2023
Type
Slab
Prestressed Concrete
Length
80 ft
2 main spans
Daily traffic
17,400
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 40 over Mesquite Wash is a prestressed concrete slab carrying Interstate 40 over Mesquite Wash in San Bernardino County, California. It was built in 1957, so it is 68 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 17,400 vehicles a day, roughly 46% of them trucks, projected to reach 31,534 by 2041. The structure is 80 ft (24.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInterstate 40
CrossesMesquite Wash
Location08-SBD-040-147.25
RouteInterstate 40
CountySan Bernardino County
StateCalifornia
Coordinates34.77508, -114.58159
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span39 ft (11.9 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,400 (2021)
Projected traffic31,534 by 2041
Trucks46%
Lanes on structure2
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 40 over Mesquite Wash built?

It was built in 1957, making it 68 years old in 2025.

What condition is Interstate 40 over Mesquite 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 2023.

How much traffic does Interstate 40 over Mesquite Wash carry?

About 17,400 vehicles per day (2021 count), of which roughly 46% are trucks.

How long is Interstate 40 over Mesquite Wash?

The structure is 80 ft (24.4 m) long with a longest span of 39 ft (11.9 m) and a deck 42 ft wide.

Who owns Interstate 40 over Mesquite Wash?

It is owned by the State Highway Agency.