US Bridges

Coffee Road SB over Kern River

Fair

Kern County, California · 0.2 MI N of Truxtun Ave · Structure no. 50C0302L

Built
1992
33 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
391 ft
5 main spans
Daily traffic
40,900
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Coffee Road SB over Kern River is a concrete continuous box beam or girders - multiple carrying Coffee Road SB over Kern River in Kern County, California. It was built in 1992, so it is 33 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 6 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 40,900 vehicles a day, roughly 7% of them trucks, projected to reach 56,330 by 2045. The structure is 391 ft (119.2 m) long and 49 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCoffee Road SB
CrossesKern River
Location0.2 MI N of Truxtun Ave
RouteCity Street 0
CountyKern County
StateCalifornia
Coordinates35.36303, -119.09175
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length391 ft (119.2 m)
Longest span87 ft (26.6 m)
Deck width49 ft (14.8 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,900 (2013)
Projected traffic56,330 by 2045
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Coffee Road SB over Kern River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Coffee Road SB over Kern River 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 October 2023.

How much traffic does Coffee Road SB over Kern River carry?

About 40,900 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is Coffee Road SB over Kern River?

The structure is 391 ft (119.2 m) long with a longest span of 87 ft (26.6 m) and a deck 49 ft wide.

Who owns Coffee Road SB over Kern River?

It is owned by the City or Municipal Highway Agency.