US Bridges

Shafter Ave over Calloway Canal

Fair

Kern County, California · 0.7 MI S Kimberlina RD · Structure no. 50C0092

Built
1970
55 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
101 ft
4 main spans
Daily traffic
1,930
2005 count
Owner
County
County Highway Agency

About this bridge

Shafter Ave over Calloway Canal is a concrete continuous slab carrying Shafter Ave over Calloway Canal in Kern County, California. It was built in 1970, so it is 55 years old, older 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 5 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 1,930 vehicles a day, roughly 5% of them trucks, projected to reach 3,260 by 2046. The structure is 101 ft (30.8 m) long and 41 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesShafter Ave
CrossesCalloway Canal
Location0.7 MI S Kimberlina RD
RouteCounty Highway 0
CountyKern County
StateCalifornia
Coordinates35.54973, -119.27697
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length101 ft (30.8 m)
Longest span28 ft (8.5 m)
Deck width41 ft (12.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,930 (2005)
Projected traffic3,260 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Shafter Ave over Calloway Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is Shafter Ave over Calloway 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 March 2024.

How much traffic does Shafter Ave over Calloway Canal carry?

About 1,930 vehicles per day (2005 count), of which roughly 5% are trucks.

How long is Shafter Ave over Calloway Canal?

The structure is 101 ft (30.8 m) long with a longest span of 28 ft (8.5 m) and a deck 41 ft wide.

Who owns Shafter Ave over Calloway Canal?

It is owned by the County Highway Agency.