US Bridges

Perkins Ave over UP RR

Poor

Kern County, California · 0.25 MI W Browning RD · Structure no. 50C0035

Built
1963
62 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
151 ft
1 main span
Daily traffic
3,970
2002 count
Owner
City
City or Municipal Highway Agency

About this bridge

Perkins Ave over UP RR is a prestressed concrete stringer/multi-beam or girder carrying Perkins Ave over UP RR in Kern County, California. It was built in 1963, so it is 62 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,970 vehicles a day, roughly 5% of them trucks, projected to reach 7,234 by 2046. The structure is 151 ft (45.9 m) long and 48 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesPerkins Ave
CrossesUP RR
Location0.25 MI W Browning RD
RouteCity Street 0
CountyKern County
StateCalifornia
Coordinates35.68271, -119.22803
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
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 alignment6: Equal to present minimum criteria
Operating rating37.5 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length151 ft (45.9 m)
Longest span59 ft (18.1 m)
Deck width48 ft (14.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,970 (2002)
Projected traffic7,234 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Perkins Ave over UP RR built?

It was built in 1963, making it 62 years old in 2025.

What condition is Perkins Ave over UP RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Perkins Ave over UP RR carry?

About 3,970 vehicles per day (2002 count), of which roughly 5% are trucks.

How long is Perkins Ave over UP RR?

The structure is 151 ft (45.9 m) long with a longest span of 59 ft (18.1 m) and a deck 48 ft wide.

Who owns Perkins Ave over UP RR?

It is owned by the City or Municipal Highway Agency.