US Bridges

Clearlake DR over Unnamed Wash

Fair

Los Angeles County, California · 0.5MI E/O Sand Cyn RD · Structure no. 53C1492

Built
1965
60 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
1,010
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Clearlake DR over Unnamed Wash is a concrete culvert carrying Clearlake DR over Unnamed Wash in Los Angeles County, California. It was built in 1965, so it is 60 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 1,010 vehicles a day, projected to reach 1,111 by 2044. The structure is 28 ft (8.5 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesClearlake DR
CrossesUnnamed Wash
Location0.5MI E/O Sand Cyn RD
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates34.40714, -118.41368
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width47 ft (14.4 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,010 (2014)
Projected traffic1,111 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Clearlake DR over Unnamed Wash built?

It was built in 1965, making it 60 years old in 2025.

What condition is Clearlake DR 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 January 2024.

How much traffic does Clearlake DR over Unnamed Wash carry?

About 1,010 vehicles per day (2014 count).

How long is Clearlake DR over Unnamed Wash?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m) and a deck 47 ft wide.

Who owns Clearlake DR over Unnamed Wash?

It is owned by the City or Municipal Highway Agency.