US Bridges

State Route 178 over Kissack Creek

Good

Kern County, California · 06-KER-178-49.90 · Structure no. 50 0481

Built
1952
73 years old
Condition
Good
inspected December 2022
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
4,900
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 178 over Kissack Creek is a concrete continuous culvert carrying State Route 178 over Kissack Creek in Kern County, California. It was built in 1952, so it is 73 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 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 4,900 vehicles a day, projected to reach 16,349 by 2044. The structure is 26 ft (7.9 m) long and 39 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesState Route 178
CrossesKissack Creek
Location06-KER-178-49.90
RouteState Highway 178
Coordinates35.64323, -118.41269
Functional classRural Minor 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.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span13 ft (4 m)
Deck width39 ft (11.9 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2009)
Projected traffic16,349 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

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 Kissack Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is State Route 178 over Kissack Creek 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 December 2022.

How much traffic does State Route 178 over Kissack Creek carry?

About 4,900 vehicles per day (2009 count).

How long is State Route 178 over Kissack Creek?

The structure is 26 ft (7.9 m) long with a longest span of 13 ft (4 m) and a deck 39 ft wide.

Who owns State Route 178 over Kissack Creek?

It is owned by the State Highway Agency.