US Bridges

Interstate 15 over Airport Drive

Good

San Bernardino County, California · 08-SBD-015-2.05-ONT · Structure no. 54 0906

Built
1978
47 years old, rebuilt 2011
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
144 ft
1 main span
Daily traffic
198,000
2020 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 over Airport Drive is a prestressed concrete box beam or girders - multiple carrying Interstate 15 over Airport Drive in San Bernardino County, California. It was built in 1978 and reconstructed in 2011, so it is 47 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 198,000 vehicles a day, roughly 10% of them trucks, projected to reach 251,446 by 2042. The structure is 144 ft (43.9 m) long and 216 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 15
CrossesAirport Drive
Location08-SBD-015-2.05-ONT
RouteInterstate 15
Coordinates34.06251, -117.54522
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.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length144 ft (43.9 m)
Longest span144 ft (43.9 m)
Deck width216 ft (65.9 m)
Roadway width212 ft (64.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic198,000 (2020)
Projected traffic251,446 by 2042
Trucks10%
Lanes on structure10
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 15 over Airport Drive built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2011.

What condition is Interstate 15 over Airport Drive 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 February 2024.

How much traffic does Interstate 15 over Airport Drive carry?

About 198,000 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Interstate 15 over Airport Drive?

The structure is 144 ft (43.9 m) long with a longest span of 144 ft (43.9 m) and a deck 216 ft wide.

Who owns Interstate 15 over Airport Drive?

It is owned by the State Highway Agency.