US Bridges

Olive Drive over Canal Lateral 29

Fair

Kern County, California · East of State RD · Structure no. 50C0131

Built
1969
56 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
20,000
2007 count
Owner
County
County Highway Agency

About this bridge

Olive Drive over Canal Lateral 29 is a concrete continuous culvert carrying Olive Drive over Canal Lateral 29 in Kern County, California. It was built in 1969, so it is 56 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 20,000 vehicles a day, roughly 5% of them trucks, projected to reach 33,371 by 2042. The structure is 25 ft (7.6 m) long and 103 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOlive Drive
CrossesCanal Lateral 29
LocationEast of State RD
RouteCity Street 0
Coordinates35.41219, -119.05238
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
Channel and channel protection7 GoodSome minor problems.
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
Deck geometry9: Superior to present desirable 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
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width103 ft (31.4 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2007)
Projected traffic33,371 by 2042
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 Olive Drive over Canal Lateral 29 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Olive Drive over Canal Lateral 29 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 Olive Drive over Canal Lateral 29 carry?

About 20,000 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is Olive Drive over Canal Lateral 29?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 103 ft wide.

Who owns Olive Drive over Canal Lateral 29?

It is owned by the County Highway Agency.