US Bridges

State HWY 58 WB over BNSF RY

Good

Kern County, California · 09-KER-058-R141.49 · Structure no. 50 0353L

Built
1971
54 years old
Condition
Good
inspected June 2023
Type
Tee Beam
Concrete Continuous
Length
124 ft
3 main spans
Daily traffic
15,700
2018 count
Owner
State
State Highway Agency

About this bridge

State HWY 58 WB over BNSF RY is a concrete continuous tee beam carrying State HWY 58 WB over BNSF RY in Kern County, California. It was built in 1971, so it is 54 years old, younger 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 15,700 vehicles a day, roughly 37% of them trucks, projected to reach 22,686 by 2040. The structure is 124 ft (37.8 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState HWY 58 WB
CrossesBNSF RY
Location09-KER-058-R141.49
RouteState Highway 58
Coordinates35.00682, -117.67358
Functional classRural Principal Arterial - Other

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.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating46.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length124 ft (37.8 m)
Longest span50 ft (15.2 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,700 (2018)
Projected traffic22,686 by 2040
Trucks37%
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 HWY 58 WB over BNSF RY built?

It was built in 1971, making it 54 years old in 2025.

What condition is State HWY 58 WB over BNSF RY 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 June 2023.

How much traffic does State HWY 58 WB over BNSF RY carry?

About 15,700 vehicles per day (2018 count), of which roughly 37% are trucks.

How long is State HWY 58 WB over BNSF RY?

The structure is 124 ft (37.8 m) long with a longest span of 50 ft (15.2 m) and a deck 41 ft wide.

Who owns State HWY 58 WB over BNSF RY?

It is owned by the State Highway Agency.