US Bridges

Foothill Blvd over Wilson Cyn Crk

Good

Los Angeles County, California · Foothill Bl & Polk ST · Structure no. 53C1749

Built
1962
63 years old
Condition
Good
inspected January 2022
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
15,753
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Foothill Blvd over Wilson Cyn Crk is a concrete culvert carrying Foothill Blvd over Wilson Cyn Crk in Los Angeles County, California. It was built in 1962, so it is 63 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 15,753 vehicles a day, roughly 1% of them trucks, projected to reach 35,360 by 2044. The structure is 24 ft (7.3 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFoothill Blvd
CrossesWilson Cyn Crk
LocationFoothill Bl & Polk ST
RouteCity Street 0
Coordinates34.31535, -118.4408
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length24 ft (7.3 m)
Longest span21 ft (6.5 m)
Deck width100 ft (30.5 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,753 (2017)
Projected traffic35,360 by 2044
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Foothill Blvd over Wilson Cyn Crk built?

It was built in 1962, making it 63 years old in 2025.

What condition is Foothill Blvd over Wilson Cyn Crk 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 January 2022.

How much traffic does Foothill Blvd over Wilson Cyn Crk carry?

About 15,753 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Foothill Blvd over Wilson Cyn Crk?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.5 m) and a deck 100 ft wide.

Who owns Foothill Blvd over Wilson Cyn Crk?

It is owned by the City or Municipal Highway Agency.