US Bridges

State Route 33 over Wasp Wash

Fair

Kern County, California · 06-KER-033-37.89 · Structure no. 50 0195

Built
1940
85 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,400
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 33 over Wasp Wash is a concrete continuous culvert carrying State Route 33 over Wasp Wash in Kern County, California. It was built in 1940, so it is 85 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 1,400 vehicles a day, roughly 31% of them trucks, projected to reach 1,153 by 2046. The structure is 23 ft (7 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesState Route 33
CrossesWasp Wash
Location06-KER-033-37.89
RouteState Highway 33
CountyKern County
StateCalifornia
Coordinates35.35671, -119.63999
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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2009)
Projected traffic1,153 by 2046
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 33 over Wasp Wash built?

It was built in 1940, making it 85 years old in 2025.

What condition is State Route 33 over Wasp Wash 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 April 2024.

How much traffic does State Route 33 over Wasp Wash carry?

About 1,400 vehicles per day (2009 count), of which roughly 31% are trucks.

How long is State Route 33 over Wasp Wash?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.

Who owns State Route 33 over Wasp Wash?

It is owned by the State Highway Agency.