US Bridges

Brown-Inyokern RD over Little Dixie Wash

Fair

Kern County, California · 2 MI S of RTE 178 · Structure no. 50C0076

Built
1945
80 years old, rebuilt 1989
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
43 ft
2 main spans
Daily traffic
1,200
2007 count
Owner
County
County Highway Agency

About this bridge

Brown-Inyokern RD over Little Dixie Wash is a concrete continuous slab carrying Brown-Inyokern RD over Little Dixie Wash in Kern County, California. It was built in 1945 and reconstructed in 1989, so it is 80 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 1,200 vehicles a day, roughly 5% of them trucks, projected to reach 1,330 by 2046. The structure is 43 ft (13.1 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesBrown-Inyokern RD
CrossesLittle Dixie Wash
Location2 MI S of RTE 178
RouteCounty Highway 0
Coordinates35.61957, -117.80416
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.2 US tons
Inventory rating26.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length43 ft (13.1 m)
Longest span20 ft (6.1 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2007)
Projected traffic1,330 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Brown-Inyokern RD over Little Dixie Wash built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 1989.

What condition is Brown-Inyokern RD over Little Dixie 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 November 2024.

How much traffic does Brown-Inyokern RD over Little Dixie Wash carry?

About 1,200 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is Brown-Inyokern RD over Little Dixie Wash?

The structure is 43 ft (13.1 m) long with a longest span of 20 ft (6.1 m) and a deck 35 ft wide.

Who owns Brown-Inyokern RD over Little Dixie Wash?

It is owned by the County Highway Agency.