US Bridges

ST Rt 43 (enos Ln) over Kern River

Fair

Kern County, California · 06-KER-043-2.58 · Structure no. 50 0074

Built
1977
48 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
198 ft
8 main spans
Daily traffic
5,450
2009 count
Owner
State
State Highway Agency

About this bridge

ST Rt 43 (enos Ln) over Kern River is a concrete continuous slab carrying ST Rt 43 (enos Ln) over Kern River in Kern County, California. It was built in 1977, so it is 48 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 5,450 vehicles a day, roughly 20% of them trucks, projected to reach 16,716 by 2042. The structure is 198 ft (60.2 m) long and 44 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesST Rt 43 (enos Ln)
CrossesKern River
Location06-KER-043-2.58
RouteState Highway 43
CountyKern County
StateCalifornia
Coordinates35.30325, -119.25238
Functional classRural Minor Arterial

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating90.7 US tons
Inventory rating54.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length198 ft (60.2 m)
Longest span26 ft (7.9 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,450 (2009)
Projected traffic16,716 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

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 ST Rt 43 (enos Ln) over Kern River built?

It was built in 1977, making it 48 years old in 2025.

What condition is ST Rt 43 (enos Ln) over Kern River 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 2024.

How much traffic does ST Rt 43 (enos Ln) over Kern River carry?

About 5,450 vehicles per day (2009 count), of which roughly 20% are trucks.

How long is ST Rt 43 (enos Ln) over Kern River?

The structure is 198 ft (60.2 m) long with a longest span of 26 ft (7.9 m) and a deck 44 ft wide.

Who owns ST Rt 43 (enos Ln) over Kern River?

It is owned by the State Highway Agency.