US Bridges

Vasquez Cyn RD over Unnamed Wash

Good

Los Angeles County, California · 0.5MI W/O Sierra HWY · Structure no. 53C1729

Built
1930
95 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
6,353
2017 count
Owner
County
County Highway Agency

About this bridge

Vasquez Cyn RD over Unnamed Wash is a concrete culvert carrying Vasquez Cyn RD over Unnamed Wash in Los Angeles County, California. It was built in 1930, so it is 95 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,353 vehicles a day, projected to reach 7,306 by 2043. The structure is 31 ft (9.4 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesVasquez Cyn RD
CrossesUnnamed Wash
Location0.5MI W/O Sierra HWY
RouteCounty Highway 7L57
Coordinates34.46069, -118.42097
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to 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 spans3
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span6 ft (1.8 m)
Deck width32 ft (9.9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,353 (2017)
Projected traffic7,306 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Vasquez Cyn RD over Unnamed Wash built?

It was built in 1930, making it 95 years old in 2025.

What condition is Vasquez Cyn RD over Unnamed Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Vasquez Cyn RD over Unnamed Wash carry?

About 6,353 vehicles per day (2017 count).

How long is Vasquez Cyn RD over Unnamed Wash?

The structure is 31 ft (9.4 m) long with a longest span of 6 ft (1.8 m) and a deck 32 ft wide.

Who owns Vasquez Cyn RD over Unnamed Wash?

It is owned by the County Highway Agency.