US Bridges

State Route 58 EB over SR 184 (weedpatch Hwy)

Fair

Kern County, California · 06-KER-058-R59.43 · Structure no. 50 0359R

Built
1970
55 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
135 ft
1 main span
Daily traffic
16,250
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 58 EB over SR 184 (weedpatch Hwy) is a prestressed concrete box beam or girders - multiple carrying State Route 58 EB over SR 184 (weedpatch Hwy) in Kern County, California. It was built in 1970, so it is 55 years old, older 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 16,250 vehicles a day, roughly 23% of them trucks, projected to reach 49,092 by 2045. The structure is 135 ft (41.1 m) long and 67 ft wide.

Location

Open in Google Maps
CarriesState Route 58 EB
CrossesSR 184 (weedpatch Hwy)
Location06-KER-058-R59.43
RouteState Highway 58
CountyKern County
StateCalifornia
Coordinates35.35203, -118.91443
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length135 ft (41.1 m)
Longest span133 ft (40.5 m)
Deck width67 ft (20.4 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,250 (2019)
Projected traffic49,092 by 2045
Trucks23%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 58 EB over SR 184 (weedpatch Hwy) built?

It was built in 1970, making it 55 years old in 2025.

What condition is State Route 58 EB over SR 184 (weedpatch Hwy) 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 September 2023.

How much traffic does State Route 58 EB over SR 184 (weedpatch Hwy) carry?

About 16,250 vehicles per day (2019 count), of which roughly 23% are trucks.

How long is State Route 58 EB over SR 184 (weedpatch Hwy)?

The structure is 135 ft (41.1 m) long with a longest span of 133 ft (40.5 m) and a deck 67 ft wide.

Who owns State Route 58 EB over SR 184 (weedpatch Hwy)?

It is owned by the State Highway Agency.