US Bridges

State Route 178 over East Side Canal

Fair

Kern County, California · 06-KER-178-R2.42-BKD · Structure no. 50 0376

Built
1986
39 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
75,000
2018 count
Owner
State
State Highway Agency

About this bridge

State Route 178 over East Side Canal is a concrete continuous culvert carrying State Route 178 over East Side Canal in Kern County, California. It was built in 1986, so it is 39 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 75,000 vehicles a day, roughly 6% of them trucks, projected to reach 148,379 by 2045. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesState Route 178
CrossesEast Side Canal
Location06-KER-178-R2.42-BKD
RouteState Highway 178
CountyKern County
StateCalifornia
Coordinates35.38248, -119.00258
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,000 (2018)
Projected traffic148,379 by 2045
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Route 178 over East Side Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is State Route 178 over East Side 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 October 2023.

How much traffic does State Route 178 over East Side Canal carry?

About 75,000 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is State Route 178 over East Side Canal?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m).

Who owns State Route 178 over East Side Canal?

It is owned by the State Highway Agency.