US Bridges

State Route 14 over Jawbone Canyon Wash

Fair

Kern County, California · 09-KER-014-35.40 · Structure no. 50 0478

Built
1994
31 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
138 ft
2 main spans
Daily traffic
6,050
2014 count
Owner
State
State Highway Agency

About this bridge

State Route 14 over Jawbone Canyon Wash is a concrete continuous box beam or girders - multiple carrying State Route 14 over Jawbone Canyon Wash in Kern County, California. It was built in 1994, so it is 31 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 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 6,050 vehicles a day, projected to reach 15,318 by 2041. The structure is 138 ft (42.1 m) long and 86 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

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CarriesState Route 14
CrossesJawbone Canyon Wash
Location09-KER-014-35.40
RouteState Highway 14
CountyKern County
StateCalifornia
Coordinates35.29701, -118.00413
Functional classRural Principal Arterial - Other

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length138 ft (42.1 m)
Longest span69 ft (21 m)
Deck width86 ft (26.1 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,050 (2014)
Projected traffic15,318 by 2041
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemYes

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 State Route 14 over Jawbone Canyon Wash built?

It was built in 1994, making it 31 years old in 2025.

What condition is State Route 14 over Jawbone Canyon Wash 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 April 2023.

How much traffic does State Route 14 over Jawbone Canyon Wash carry?

About 6,050 vehicles per day (2014 count).

How long is State Route 14 over Jawbone Canyon Wash?

The structure is 138 ft (42.1 m) long with a longest span of 69 ft (21 m) and a deck 86 ft wide.

Who owns State Route 14 over Jawbone Canyon Wash?

It is owned by the State Highway Agency.