US Bridges

Clinton Keith Road over Interstate 15

Good

Riverside County, California · 08-RIV-015-13.64 · Structure no. 56 0721

Built
1979
46 years old, rebuilt 2013
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
290 ft
2 main spans
Daily traffic
4,000
2021 count
Owner
State
State Highway Agency

About this bridge

Clinton Keith Road over Interstate 15 is a prestressed concrete continuous box beam or girders - multiple carrying Clinton Keith Road over Interstate 15 in Riverside County, California. It was built in 1979 and reconstructed in 2013, so it is 46 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 4,000 vehicles a day, roughly 1% of them trucks, projected to reach 4,595 by 2043. The structure is 290 ft (88.4 m) long and 122 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesClinton Keith Road
CrossesInterstate 15
Location08-RIV-015-13.64
RouteCounty Highway 0
Coordinates33.59541, -117.24519
Functional classRural Minor Collector

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment9: Superior 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
Structure length290 ft (88.4 m)
Longest span144 ft (43.9 m)
Deck width122 ft (37.2 m)
Roadway width110 ft (33.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2021)
Projected traffic4,595 by 2043
Trucks1%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.2 mi (10 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 Clinton Keith Road over Interstate 15 built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2013.

What condition is Clinton Keith Road over Interstate 15 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 December 2023.

How much traffic does Clinton Keith Road over Interstate 15 carry?

About 4,000 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Clinton Keith Road over Interstate 15?

The structure is 290 ft (88.4 m) long with a longest span of 144 ft (43.9 m) and a deck 122 ft wide.

Who owns Clinton Keith Road over Interstate 15?

It is owned by the State Highway Agency.