US Bridges

Lafrance DR over Kern Island Canal

Good

Kern County, California · East of South H ST · Structure no. 50C0210

Built
1988
37 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete Continuous
Length
26 ft
3 main spans
Daily traffic
1,186
2009 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lafrance DR over Kern Island Canal is a concrete continuous culvert carrying Lafrance DR over Kern Island Canal in Kern County, California. It was built in 1988, so it is 37 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,186 vehicles a day, roughly 2% of them trucks, projected to reach 1,105 by 2045. The structure is 26 ft (7.9 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLafrance DR
CrossesKern Island Canal
LocationEast of South H ST
RouteCity Street 0
Coordinates35.34298, -119.021
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width49 ft (15 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,186 (2009)
Projected traffic1,105 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lafrance DR over Kern Island Canal built?

It was built in 1988, making it 37 years old in 2025.

What condition is Lafrance DR over Kern Island Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Lafrance DR over Kern Island Canal carry?

About 1,186 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is Lafrance DR over Kern Island Canal?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 49 ft wide.

Who owns Lafrance DR over Kern Island Canal?

It is owned by the City or Municipal Highway Agency.