US Bridges

Iris Avenue over Iris Avenue Channel

Fair

Riverside County, California · 0.2 Mi. E/O Lasselle St. · Structure no. 56C0418

Built
1988
37 years old
Condition
Fair
inspected July 2021
Type
Culvert
Concrete
Length
152 ft
12 main spans
Daily traffic
27,600
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Iris Avenue over Iris Avenue Channel is a concrete culvert carrying Iris Avenue over Iris Avenue Channel in Riverside County, California. It was built in 1988, so it is 37 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 6 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 27,600 vehicles a day, roughly 1% of them trucks, projected to reach 56,541 by 2041. The structure is 152 ft (46.3 m) long and 165 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesIris Avenue
CrossesIris Avenue Channel
Location0.2 Mi. E/O Lasselle St.
RouteCity Street 0
CountyRiverside County
StateCalifornia
Coordinates33.89175, -117.20457
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans12
Design loadUnknown
Structure length152 ft (46.3 m)
Longest span12 ft (3.7 m)
Deck width165 ft (50.3 m)
Roadway width115 ft (35 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,600 (2017)
Projected traffic56,541 by 2041
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Iris Avenue over Iris Avenue Channel built?

It was built in 1988, making it 37 years old in 2025.

What condition is Iris Avenue over Iris Avenue Channel 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 July 2021.

How much traffic does Iris Avenue over Iris Avenue Channel carry?

About 27,600 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Iris Avenue over Iris Avenue Channel?

The structure is 152 ft (46.3 m) long with a longest span of 12 ft (3.7 m) and a deck 165 ft wide.

Who owns Iris Avenue over Iris Avenue Channel?

It is owned by the City or Municipal Highway Agency.