US Bridges

N99-AIRPORT DR Off over Buck Owen Calloway Cnl

Good

Kern County, California · 06-KER-099-26.70 · Structure no. 50 0265S

Built
1963
62 years old, rebuilt 1998
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
309 ft
6 main spans
Daily traffic
14,300
2011 count
Owner
State
State Highway Agency

About this bridge

N99-AIRPORT DR Off over Buck Owen Calloway Cnl is a concrete continuous box beam or girders - multiple carrying N99-AIRPORT DR Off over Buck Owen Calloway Cnl in Kern County, California. It was built in 1963 and reconstructed in 1998, 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 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 14,300 vehicles a day, roughly 2% of them trucks, projected to reach 20,403 by 2045. The structure is 309 ft (94.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN99-AIRPORT DR Off
CrossesBuck Owen Calloway Cnl
Location06-KER-099-26.70
RouteState Highway 99
Coordinates35.39797, -119.04416
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38.6 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length309 ft (94.1 m)
Longest span62 ft (18.9 m)
Deck width40 ft (12.1 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,300 (2011)
Projected traffic20,403 by 2045
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was N99-AIRPORT DR Off over Buck Owen Calloway Cnl built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1998.

What condition is N99-AIRPORT DR Off over Buck Owen Calloway Cnl 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 2023.

How much traffic does N99-AIRPORT DR Off over Buck Owen Calloway Cnl carry?

About 14,300 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is N99-AIRPORT DR Off over Buck Owen Calloway Cnl?

The structure is 309 ft (94.1 m) long with a longest span of 62 ft (18.9 m) and a deck 40 ft wide.

Who owns N99-AIRPORT DR Off over Buck Owen Calloway Cnl?

It is owned by the State Highway Agency.