US Bridges

State Route 58 EB over Cache Creek

Fair

Kern County, California · 09-KER-058-R107.60 · Structure no. 50 0201R

Built
1983
42 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
270 ft
4 main spans
Daily traffic
20,000
2016 count
Owner
State
State Highway Agency

About this bridge

State Route 58 EB over Cache Creek is a concrete continuous box beam or girders - multiple carrying State Route 58 EB over Cache Creek in Kern County, California. It was built in 1983, so it is 42 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 20,000 vehicles a day, roughly 33% of them trucks, projected to reach 30,340 by 2040. The structure is 270 ft (82.3 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 58 EB
CrossesCache Creek
Location09-KER-058-R107.60
RouteState Highway 58
Coordinates35.11669, -118.20196
Functional classRural Principal Arterial - Other

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating53.6 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length270 ft (82.3 m)
Longest span73 ft (22.3 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2016)
Projected traffic30,340 by 2040
Trucks33%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 58 EB over Cache Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is State Route 58 EB over Cache Creek 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 Cache Creek carry?

About 20,000 vehicles per day (2016 count), of which roughly 33% are trucks.

How long is State Route 58 EB over Cache Creek?

The structure is 270 ft (82.3 m) long with a longest span of 73 ft (22.3 m) and a deck 40 ft wide.

Who owns State Route 58 EB over Cache Creek?

It is owned by the State Highway Agency.