US Bridges

Lancaster RD over Unnamed Wash

Fair

Los Angeles County, California · At 190th ST W · Structure no. 53C1862

Built
1976
49 years old
Condition
Fair
inspected May 2024
Type
Culvert
Steel
Length
30 ft
3 main spans
Daily traffic
408
2014 count
Owner
County
County Highway Agency

About this bridge

Lancaster RD over Unnamed Wash is a steel culvert carrying Lancaster RD over Unnamed Wash in Los Angeles County, California. It was built in 1976, so it is 49 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 408 vehicles a day, roughly 2% of them trucks, projected to reach 408 by 2044. The structure is 30 ft (9.1 m) long and 61 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesLancaster RD
CrossesUnnamed Wash
LocationAt 190th ST W
RouteCounty Highway 0Q006
CountyLos Angeles County
StateCalifornia
Coordinates34.7458, -118.46676
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110 US tons
Inventory rating110 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span8 ft (2.4 m)
Deck width61 ft (18.6 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic408 (2014)
Projected traffic408 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Lancaster RD over Unnamed Wash built?

It was built in 1976, making it 49 years old in 2025.

What condition is Lancaster RD over Unnamed 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 May 2024.

How much traffic does Lancaster RD over Unnamed Wash carry?

About 408 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Lancaster RD over Unnamed Wash?

The structure is 30 ft (9.1 m) long with a longest span of 8 ft (2.4 m) and a deck 61 ft wide.

Who owns Lancaster RD over Unnamed Wash?

It is owned by the County Highway Agency.