US Bridges

State Road over Canal Lateral 29

Good

Kern County, California · South of Olive Drive · Structure no. 50C0293

Built
1965
60 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
3,500
2016 count
Owner
County
County Highway Agency

About this bridge

State Road over Canal Lateral 29 is a concrete continuous culvert carrying State Road over Canal Lateral 29 in Kern County, California. It was built in 1965, so it is 60 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,500 vehicles a day, roughly 5% of them trucks, projected to reach 4,606 by 2045. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesState Road
CrossesCanal Lateral 29
LocationSouth of Olive Drive
RouteCounty Highway 0
Coordinates35.41189, -119.05275
Functional classUrban Other Principal Arterial

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.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum 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 length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2016)
Projected traffic4,606 by 2045
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Road over Canal Lateral 29 built?

It was built in 1965, making it 60 years old in 2025.

What condition is State Road over Canal Lateral 29 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 January 2025.

How much traffic does State Road over Canal Lateral 29 carry?

About 3,500 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is State Road over Canal Lateral 29?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns State Road over Canal Lateral 29?

It is owned by the County Highway Agency.