US Bridges

State Route 58 EB over South P Street

Fair

Kern County, California · 06-KER-058-R53.91-BKD · Structure no. 50 0405R

Built
1976
49 years old, rebuilt 2015
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
125 ft
1 main span
Daily traffic
15,000
2016 count
Owner
State
State Highway Agency

About this bridge

State Route 58 EB over South P Street is a prestressed concrete box beam or girders - multiple carrying State Route 58 EB over South P Street in Kern County, California. It was built in 1976 and reconstructed in 2015, so it is 49 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 15,000 vehicles a day, roughly 29% of them trucks, projected to reach 23,000 by 2040. The structure is 125 ft (38.1 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesState Route 58 EB
CrossesSouth P Street
Location06-KER-058-R53.91-BKD
RouteState Highway 58
Coordinates35.3523, -119.01214
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 rating105.1 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length125 ft (38.1 m)
Longest span125 ft (38.1 m)
Deck width58 ft (17.8 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2016)
Projected traffic23,000 by 2040
Trucks29%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 58 EB over South P Street built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2015.

What condition is State Route 58 EB over South P Street 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 May 2023.

How much traffic does State Route 58 EB over South P Street carry?

About 15,000 vehicles per day (2016 count), of which roughly 29% are trucks.

How long is State Route 58 EB over South P Street?

The structure is 125 ft (38.1 m) long with a longest span of 125 ft (38.1 m) and a deck 58 ft wide.

Who owns State Route 58 EB over South P Street?

It is owned by the State Highway Agency.