US Bridges

Interstate 15 SB over Lake Street

Good

Riverside County, California · 08-RIV-015-26.69 · Structure no. 56 0682L

Built
1980
45 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
117 ft
1 main span
Daily traffic
66,000
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 SB over Lake Street is a prestressed concrete box beam or girders - multiple carrying Interstate 15 SB over Lake Street in Riverside County, California. It was built in 1980, so it is 45 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 66,000 vehicles a day, roughly 11% of them trucks, projected to reach 101,491 by 2044. The structure is 117 ft (35.7 m) long and 69 ft wide.

CarriesInterstate 15 SB
CrossesLake Street
Location08-RIV-015-26.69
RouteInterstate 15
Coordinates33.72996, -117.39335
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 alignment9: Superior to present desirable criteria
Operating rating69.3 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length117 ft (35.7 m)
Longest span117 ft (35.7 m)
Deck width69 ft (21 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66,000 (2022)
Projected traffic101,491 by 2044
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 SB over Lake Street built?

It was built in 1980, making it 45 years old in 2025.

What condition is Interstate 15 SB over Lake Street 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 SB over Lake Street carry?

About 66,000 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Interstate 15 SB over Lake Street?

The structure is 117 ft (35.7 m) long with a longest span of 117 ft (35.7 m) and a deck 69 ft wide.

Who owns Interstate 15 SB over Lake Street?

It is owned by the State Highway Agency.