US Bridges

State Route 178 over Erskine Creek

Fair

Kern County, California · 06-KER-178-R41.61 · Structure no. 50 0463

Built
1974
51 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
4,200
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 178 over Erskine Creek is a concrete continuous culvert carrying State Route 178 over Erskine Creek in Kern County, California. It was built in 1974, so it is 51 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 5 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 4,200 vehicles a day, roughly 8% of them trucks, projected to reach 8,610 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesState Route 178
CrossesErskine Creek
Location06-KER-178-R41.61
RouteState Highway 178
CountyKern County
StateCalifornia
Coordinates35.61115, -118.48979
Functional classRural 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable 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 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 traffic4,200 (2009)
Projected traffic8,610 by 2044
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Erskine Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is State Route 178 over Erskine Creek 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 State Route 178 over Erskine Creek carry?

About 4,200 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is State Route 178 over Erskine Creek?

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

Who owns State Route 178 over Erskine Creek?

It is owned by the State Highway Agency.