US Bridges

Interstate 10 EB over Happy Gulch

Good

Riverside County, California · 08-RIV-010-R75.67 · Structure no. 56 0209R

Built
1965
60 years old
Condition
Good
inspected October 2022
Type
Slab
Concrete Continuous
Length
57 ft
3 main spans
Daily traffic
9,150
2016 count
Owner
State
State Highway Agency

About this bridge

Interstate 10 EB over Happy Gulch is a concrete continuous slab carrying Interstate 10 EB over Happy Gulch 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 9,150 vehicles a day, roughly 39% of them trucks, projected to reach 21,094 by 2040. The structure is 57 ft (17.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 10 EB
CrossesHappy Gulch
Location08-RIV-010-R75.67
RouteInterstate 10
Coordinates33.66775, -115.90356
Functional classRural 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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span22 ft (6.7 m)
Deck width42 ft (12.7 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,150 (2016)
Projected traffic21,094 by 2040
Trucks39%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 10 EB over Happy Gulch built?

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

What condition is Interstate 10 EB over Happy Gulch 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 2022.

How much traffic does Interstate 10 EB over Happy Gulch carry?

About 9,150 vehicles per day (2016 count), of which roughly 39% are trucks.

How long is Interstate 10 EB over Happy Gulch?

The structure is 57 ft (17.4 m) long with a longest span of 22 ft (6.7 m) and a deck 42 ft wide.

Who owns Interstate 10 EB over Happy Gulch?

It is owned by the State Highway Agency.