US Bridges

Laurel Canyon Blvd over Los Angeles River

Good

Los Angeles County, California · 0.2 MI N/O Ventura Blvd · Structure no. 53C1234

Built
1951
74 years old, rebuilt 1969
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
110 ft
1 main span
Daily traffic
44,972
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Laurel Canyon Blvd over Los Angeles River is a concrete box beam or girders - multiple carrying Laurel Canyon Blvd over Los Angeles River in Los Angeles County, California. It was built in 1951 and reconstructed in 1969, so it is 74 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 44,972 vehicles a day, roughly 4% of them trucks, projected to reach 57,259 by 2044. The structure is 110 ft (33.5 m) long and 96 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLaurel Canyon Blvd
CrossesLos Angeles River
Location0.2 MI N/O Ventura Blvd
RouteCity Street 0
Coordinates34.1459, -118.39598
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating55.3 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span105 ft (32 m)
Deck width96 ft (29.3 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,972 (2018)
Projected traffic57,259 by 2044
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Laurel Canyon Blvd over Los Angeles River built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1969.

What condition is Laurel Canyon Blvd over Los Angeles River 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 March 2024.

How much traffic does Laurel Canyon Blvd over Los Angeles River carry?

About 44,972 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Laurel Canyon Blvd over Los Angeles River?

The structure is 110 ft (33.5 m) long with a longest span of 105 ft (32 m) and a deck 96 ft wide.

Who owns Laurel Canyon Blvd over Los Angeles River?

It is owned by the City or Municipal Highway Agency.