US Bridges

State Route 14 SB over UP RR & BNSF RY

Fair

Kern County, California · 09-KER-014-R15.33 · Structure no. 50 0402L

Built
1990
35 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
628 ft
4 main spans
Daily traffic
8,975
2014 count
Owner
State
State Highway Agency

About this bridge

State Route 14 SB over UP RR & BNSF RY is a prestressed concrete continuous box beam or girders - multiple carrying State Route 14 SB over UP RR & BNSF RY in Kern County, California. It was built in 1990, so it is 35 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 8,975 vehicles a day, roughly 9% of them trucks, projected to reach 31,344 by 2041. The structure is 628 ft (191.4 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesState Route 14 SB
CrossesUP RR & BNSF RY
Location09-KER-014-R15.33
RouteState Highway 14
CountyKern County
StateCalifornia
Coordinates35.03785, -118.16976
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.2 US tons
Inventory rating67.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length628 ft (191.4 m)
Longest span185 ft (56.4 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,975 (2014)
Projected traffic31,344 by 2041
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 14 SB over UP RR & BNSF RY built?

It was built in 1990, making it 35 years old in 2025.

What condition is State Route 14 SB over UP RR & BNSF RY 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 SB over UP RR & BNSF RY carry?

About 8,975 vehicles per day (2014 count), of which roughly 9% are trucks.

How long is State Route 14 SB over UP RR & BNSF RY?

The structure is 628 ft (191.4 m) long with a longest span of 185 ft (56.4 m) and a deck 40 ft wide.

Who owns State Route 14 SB over UP RR & BNSF RY?

It is owned by the State Highway Agency.