US Bridges

Iris Street over Beardsley Canal

Fair

Kern County, California · 0.06 MI S Ferguson Ave · Structure no. 50C0281

Built
1981
44 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
310
2014 count
Owner
County
County Highway Agency

About this bridge

Iris Street over Beardsley Canal is a prestressed concrete tee beam carrying Iris Street over Beardsley Canal in Kern County, California. It was built in 1981, so it is 44 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 310 vehicles a day, roughly 1% of them trucks, projected to reach 536 by 2045. The structure is 59 ft (18 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIris Street
CrossesBeardsley Canal
Location0.06 MI S Ferguson Ave
RouteCounty Highway 0
Coordinates35.41458, -119.01652
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length59 ft (18 m)
Longest span57 ft (17.4 m)
Deck width54 ft (16.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2014)
Projected traffic536 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Iris Street over Beardsley Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is Iris Street over Beardsley Canal 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 January 2025.

How much traffic does Iris Street over Beardsley Canal carry?

About 310 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Iris Street over Beardsley Canal?

The structure is 59 ft (18 m) long with a longest span of 57 ft (17.4 m) and a deck 54 ft wide.

Who owns Iris Street over Beardsley Canal?

It is owned by the County Highway Agency.