US Bridges

Columbus Ave over Kern Island Canal

Fair

Kern County, California · 0.2 MI W Union Ave · Structure no. 50C0164

Built
1970
55 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
10,425
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Columbus Ave over Kern Island Canal is a concrete continuous culvert carrying Columbus Ave over Kern Island Canal in Kern County, California. It was built in 1970, so it is 55 years old, older 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 10,425 vehicles a day, roughly 1% of them trucks, projected to reach 14,222 by 2044. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesColumbus Ave
CrossesKern Island Canal
Location0.2 MI W Union Ave
RouteCity Street 0
Coordinates35.39713, -119.00675
Functional classUrban Other Principal 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,425 (2016)
Projected traffic14,222 by 2044
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Columbus Ave over Kern Island Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is Columbus Ave over Kern Island Canal 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 December 2024.

How much traffic does Columbus Ave over Kern Island Canal carry?

About 10,425 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Columbus Ave over Kern Island Canal?

The structure is 27 ft (8.2 m) long with a longest span of 13 ft (4 m).

Who owns Columbus Ave over Kern Island Canal?

It is owned by the City or Municipal Highway Agency.