US Bridges

Interstate 15 NB over Kenwood Avenue

Good

San Bernardino County, California · 08-SBD-015-R14.96 · Structure no. 54 0772R

Built
1969
56 years old, rebuilt 2007
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
158 ft
3 main spans
Daily traffic
86,500
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 NB over Kenwood Avenue is a concrete continuous box beam or girders - multiple carrying Interstate 15 NB over Kenwood Avenue in San Bernardino County, California. It was built in 1969 and reconstructed in 2007, so it is 56 years old, older 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 86,500 vehicles a day, roughly 11% of them trucks, projected to reach 98,000 by 2042. The structure is 158 ft (48.2 m) long and 86 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 15 NB
CrossesKenwood Avenue
Location08-SBD-015-R14.96
RouteInterstate 15
Coordinates34.23682, -117.42487
Functional classRural 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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length158 ft (48.2 m)
Longest span80 ft (24.4 m)
Deck width86 ft (26.1 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86,500 (2022)
Projected traffic98,000 by 2042
Trucks11%
Lanes on structure5
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 NB over Kenwood Avenue built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2007.

What condition is Interstate 15 NB over Kenwood Avenue 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 2025.

How much traffic does Interstate 15 NB over Kenwood Avenue carry?

About 86,500 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Interstate 15 NB over Kenwood Avenue?

The structure is 158 ft (48.2 m) long with a longest span of 80 ft (24.4 m) and a deck 86 ft wide.

Who owns Interstate 15 NB over Kenwood Avenue?

It is owned by the State Highway Agency.