US Bridges

Interstate 5 NB over State Route 58 & Tvrr

Poor

Kern County, California · 06-KER-005-52.09 · Structure no. 50 0307R

Built
1969
56 years old
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
309 ft
5 main spans
Daily traffic
17,000
2018 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 NB over State Route 58 & Tvrr is a concrete continuous box beam or girders - multiple carrying Interstate 5 NB over State Route 58 & Tvrr in Kern County, California. It was built in 1969, so it is 56 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 17,000 vehicles a day, projected to reach 26,551 by 2042. The structure is 309 ft (94.2 m) long and 42 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

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CarriesInterstate 5 NB
CrossesState Route 58 & Tvrr
Location06-KER-005-52.09
RouteInterstate 5
CountyKern County
StateCalifornia
Coordinates35.39846, -119.39642
Functional classRural Principal Arterial - Interstate

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.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating40.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length309 ft (94.2 m)
Longest span70 ft (21.3 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (2018)
Projected traffic26,551 by 2042
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed21.7 mi (35 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 5 NB over State Route 58 & Tvrr built?

It was built in 1969, making it 56 years old in 2025.

What condition is Interstate 5 NB over State Route 58 & Tvrr 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 October 2024.

How much traffic does Interstate 5 NB over State Route 58 & Tvrr carry?

About 17,000 vehicles per day (2018 count).

How long is Interstate 5 NB over State Route 58 & Tvrr?

The structure is 309 ft (94.2 m) long with a longest span of 70 ft (21.3 m) and a deck 42 ft wide.

Who owns Interstate 5 NB over State Route 58 & Tvrr?

It is owned by the State Highway Agency.