US Bridges

Interstate 15 NB over Riverside Drive

Good

Riverside County, California · 08-RIV-015-51.26 · Structure no. 56 0693R

Built
1987
38 years old, rebuilt 2019
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
72,500
2015 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 NB over Riverside Drive is a prestressed concrete box beam or girders - multiple carrying Interstate 15 NB over Riverside Drive in Riverside County, California. It was built in 1987 and reconstructed in 2019, so it is 38 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. Its operating status is: new structure not yet open to traffic.

It carries about 72,500 vehicles a day, roughly 16% of them trucks, projected to reach 105,800 by 2042. The structure is 103 ft (31.5 m) long and 83 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 15 NB
CrossesRiverside Drive
Location08-RIV-015-51.26
RouteInterstate 15
Coordinates34.01865, -117.54997
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusNew structure not yet open to traffic
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length103 ft (31.5 m)
Longest span103 ft (31.5 m)
Deck width83 ft (25.3 m)
Roadway width73 ft (22.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72,500 (2015)
Projected traffic105,800 by 2042
Trucks16%
Lanes on structure4
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 Riverside Drive built?

It was built in 1987, making it 38 years old in 2025. It was reconstructed in 2019.

What condition is Interstate 15 NB over Riverside 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 June 2024.

How much traffic does Interstate 15 NB over Riverside Drive carry?

About 72,500 vehicles per day (2015 count), of which roughly 16% are trucks.

How long is Interstate 15 NB over Riverside Drive?

The structure is 103 ft (31.5 m) long with a longest span of 103 ft (31.5 m) and a deck 83 ft wide.

Who owns Interstate 15 NB over Riverside Drive?

It is owned by the State Highway Agency.