US Bridges

Rancho California over Interstate 15

Good

Riverside County, California · 08-RIV-015-4.98-TMCA · Structure no. 56 0655

Built
1976
49 years old, rebuilt 1999
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
264 ft
2 main spans
Daily traffic
8,000
2021 count
Owner
State
State Highway Agency

About this bridge

Rancho California over Interstate 15 is a prestressed concrete continuous box beam or girders - multiple carrying Rancho California over Interstate 15 in Riverside County, California. It was built in 1976 and reconstructed in 1999, so it is 49 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 8,000 vehicles a day, roughly 1% of them trucks, projected to reach 9,398 by 2041. The structure is 264 ft (80.6 m) long and 127 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRancho California
CrossesInterstate 15
Location08-RIV-015-4.98-TMCA
RouteCounty Highway 0W561
Coordinates33.50044, -117.15162
Functional classRural Major 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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating45.7 US tons
Inventory rating31.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length264 ft (80.6 m)
Longest span135 ft (41.1 m)
Deck width127 ft (38.7 m)
Roadway width108 ft (32.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2021)
Projected traffic9,398 by 2041
Trucks1%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 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 Rancho California over Interstate 15 built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 1999.

What condition is Rancho California 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 October 2023.

How much traffic does Rancho California over Interstate 15 carry?

About 8,000 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Rancho California over Interstate 15?

The structure is 264 ft (80.6 m) long with a longest span of 135 ft (41.1 m) and a deck 127 ft wide.

Who owns Rancho California over Interstate 15?

It is owned by the State Highway Agency.