US Bridges

Interstate 40 over Airport Road

Fair

San Bernardino County, California · 08-SBD-040-R12.19 · Structure no. 54 0732L

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
143 ft
3 main spans
Daily traffic
19,500
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 40 over Airport Road is a concrete continuous box beam or girders - multiple carrying Interstate 40 over Airport Road in San Bernardino County, California. It was built in 1968, so it is 57 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 19,500 vehicles a day, roughly 40% of them trucks, projected to reach 23,644 by 2044. The structure is 143 ft (43.6 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInterstate 40
CrossesAirport Road
Location08-SBD-040-R12.19
RouteInterstate 40
CountySan Bernardino County
StateCalifornia
Coordinates34.84136, -116.80365
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.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating30.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span79 ft (24.1 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,500 (2022)
Projected traffic23,644 by 2044
Trucks40%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 40 over Airport Road built?

It was built in 1968, making it 57 years old in 2025.

What condition is Interstate 40 over Airport Road 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 October 2024.

How much traffic does Interstate 40 over Airport Road carry?

About 19,500 vehicles per day (2022 count), of which roughly 40% are trucks.

How long is Interstate 40 over Airport Road?

The structure is 143 ft (43.6 m) long with a longest span of 79 ft (24.1 m) and a deck 41 ft wide.

Who owns Interstate 40 over Airport Road?

It is owned by the State Highway Agency.