US Bridges

Lenwood Road over Interstate 15

Fair

San Bernardino County, California · 08-SBD-015-68.77-BSW · Structure no. 54 1202

Built
1999
26 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
282 ft
2 main spans
Daily traffic
70,000
2017 count
Owner
State
State Highway Agency

About this bridge

Lenwood Road over Interstate 15 is a prestressed concrete continuous box beam or girders - multiple carrying Lenwood Road over Interstate 15 in San Bernardino County, California. It was built in 1999, so it is 26 years old, younger 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 70,000 vehicles a day, roughly 25% of them trucks, projected to reach 80,000 by 2042. The structure is 282 ft (86.1 m) long and 86 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLenwood Road
CrossesInterstate 15
Location08-SBD-015-68.77-BSW
RouteCounty Highway 0
Coordinates34.85346, -117.08562
Functional classUrban Minor Arterial

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.
Last inspectionApril 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 Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length282 ft (86.1 m)
Longest span146 ft (44.5 m)
Deck width86 ft (26.1 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70,000 (2017)
Projected traffic80,000 by 2042
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 Lenwood Road over Interstate 15 built?

It was built in 1999, making it 26 years old in 2025.

What condition is Lenwood Road over Interstate 15 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 Lenwood Road over Interstate 15 carry?

About 70,000 vehicles per day (2017 count), of which roughly 25% are trucks.

How long is Lenwood Road over Interstate 15?

The structure is 282 ft (86.1 m) long with a longest span of 146 ft (44.5 m) and a deck 86 ft wide.

Who owns Lenwood Road over Interstate 15?

It is owned by the State Highway Agency.