US Bridges

Airport DR-S99 on over SR 99 Buck Owens Callowy

Fair

Kern County, California · 06-KER-099-26.78 · Structure no. 50 0266

Built
1963
62 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
622 ft
6 main spans
Daily traffic
15,800
2011 count
Owner
State
State Highway Agency

About this bridge

Airport DR-S99 on over SR 99 Buck Owens Callowy is a concrete continuous box beam or girders - multiple carrying Airport DR-S99 on over SR 99 Buck Owens Callowy in Kern County, California. It was built in 1963, so it is 62 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 15,800 vehicles a day, roughly 4% of them trucks, projected to reach 20,403 by 2045. The structure is 622 ft (189.6 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAirport DR-S99 on
CrossesSR 99 Buck Owens Callowy
Location06-KER-099-26.78
RouteState Highway 99
CountyKern County
StateCalifornia
Coordinates35.39836, -119.04537
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length622 ft (189.6 m)
Longest span118 ft (36 m)
Deck width40 ft (12.1 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,800 (2011)
Projected traffic20,403 by 2045
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 Airport DR-S99 on over SR 99 Buck Owens Callowy built?

It was built in 1963, making it 62 years old in 2025.

What condition is Airport DR-S99 on over SR 99 Buck Owens Callowy 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 October 2023.

How much traffic does Airport DR-S99 on over SR 99 Buck Owens Callowy carry?

About 15,800 vehicles per day (2011 count), of which roughly 4% are trucks.

How long is Airport DR-S99 on over SR 99 Buck Owens Callowy?

The structure is 622 ft (189.6 m) long with a longest span of 118 ft (36 m) and a deck 40 ft wide.

Who owns Airport DR-S99 on over SR 99 Buck Owens Callowy?

It is owned by the State Highway Agency.