US Bridges

San Timoteo Cyn RD over Interstate 10

Good

Riverside County, California · 08-RIV-010-R5.53 · Structure no. 56 0496

Built
1965
60 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
225 ft
2 main spans
Daily traffic
840
2016 count
Owner
State
State Highway Agency

About this bridge

San Timoteo Cyn RD over Interstate 10 is a prestressed concrete stringer/multi-beam or girder carrying San Timoteo Cyn RD over Interstate 10 in Riverside County, California. It was built in 1965, so it is 60 years old, older 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 840 vehicles a day, roughly 2% of them trucks, projected to reach 877 by 2040. The structure is 225 ft (68.6 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSan Timoteo Cyn RD
CrossesInterstate 10
Location08-RIV-010-R5.53
RouteCounty Highway 0Y427
Coordinates33.94512, -117.00272
Functional classUrban 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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.1 US tons
Inventory rating32.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length225 ft (68.6 m)
Longest span79 ft (24.2 m)
Deck width47 ft (14.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2016)
Projected traffic877 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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 San Timoteo Cyn RD over Interstate 10 built?

It was built in 1965, making it 60 years old in 2025.

What condition is San Timoteo Cyn RD over Interstate 10 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 March 2023.

How much traffic does San Timoteo Cyn RD over Interstate 10 carry?

About 840 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is San Timoteo Cyn RD over Interstate 10?

The structure is 225 ft (68.6 m) long with a longest span of 79 ft (24.2 m) and a deck 47 ft wide.

Who owns San Timoteo Cyn RD over Interstate 10?

It is owned by the State Highway Agency.