US Bridges

Interstate 15 NB over State Route 60

Fair

Riverside County, California · 08-RIV-015-51.45 · Structure no. 56 0691R

Built
1987
38 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
274 ft
2 main spans
Daily traffic
67,450
2017 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 NB over State Route 60 is a prestressed concrete continuous box beam or girders - multiple carrying Interstate 15 NB over State Route 60 in Riverside County, California. It was built in 1987, 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 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 67,450 vehicles a day, roughly 16% of them trucks, projected to reach 192,046 by 2043. The structure is 274 ft (83.5 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInterstate 15 NB
CrossesState Route 60
Location08-RIV-015-51.45
RouteInterstate 15
CountyRiverside County
StateCalifornia
Coordinates34.02132, -117.54996
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length274 ft (83.5 m)
Longest span139 ft (42.4 m)
Deck width69 ft (21 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deck19 ft (5.7 m)

Traffic and service

Average daily traffic67,450 (2017)
Projected traffic192,046 by 2043
Trucks16%
Lanes on structure3
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 State Route 60 built?

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

What condition is Interstate 15 NB over State Route 60 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 June 2024.

How much traffic does Interstate 15 NB over State Route 60 carry?

About 67,450 vehicles per day (2017 count), of which roughly 16% are trucks.

How long is Interstate 15 NB over State Route 60?

The structure is 274 ft (83.5 m) long with a longest span of 139 ft (42.4 m) and a deck 69 ft wide.

Who owns Interstate 15 NB over State Route 60?

It is owned by the State Highway Agency.