US Bridges

Walker Basin RD over Rancheria Creek

Fair

Kern County, California · 1.17 MI W Piute Mountn RD · Structure no. 50C0095

Built
1971
54 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
180
2007 count
Owner
County
County Highway Agency

About this bridge

Walker Basin RD over Rancheria Creek is a concrete continuous slab carrying Walker Basin RD over Rancheria Creek in Kern County, California. It was built in 1971, so it is 54 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 180 vehicles a day, roughly 5% of them trucks, projected to reach 135 by 2046. The structure is 81 ft (24.7 m) long and 41 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesWalker Basin RD
CrossesRancheria Creek
Location1.17 MI W Piute Mountn RD
RouteCounty Highway 0
Coordinates35.39, -118.42897
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span26 ft (7.9 m)
Deck width41 ft (12.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2007)
Projected traffic135 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 Walker Basin RD over Rancheria Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Walker Basin RD over Rancheria 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 November 2024.

How much traffic does Walker Basin RD over Rancheria Creek carry?

About 180 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is Walker Basin RD over Rancheria Creek?

The structure is 81 ft (24.7 m) long with a longest span of 26 ft (7.9 m) and a deck 41 ft wide.

Who owns Walker Basin RD over Rancheria Creek?

It is owned by the County Highway Agency.