Arroyo Calabasas (also known as Calabasas Creek) is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data
The National Map
, accessed March 16, 2011

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of the

Los Angeles River The Los Angeles River (), historically known as by the Tongva and the by the Spanish, is a major river in Los Angeles County, California. Its headwaters are in the Simi Hills and Santa Susana Mountains, and it flows nearly from Canoga Park ...

, in the southwestern

San Fernando Valley The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, Los Angeles County, California. Situated to the north of the Los Angeles Basin, it comprises a large portion of Los Angeles, the Municipal corpo ...

area of

Los Angeles County Los Angeles County, officially the County of Los Angeles and sometimes abbreviated as LA County, is the most populous county in the United States, with 9,663,345 residents estimated in 2023. Its population is greater than that of 40 individua ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

Route

Origin of the Los Angeles River in Canoga Park

The stream begins with the merging of: Dry Canyon Creek from a Santa Monica Mountains watershed and McCoy Canyon Creek from a

Simi Hills The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County, California, Ventura County and western Los Angeles County, California, Los Angeles County, of Southern California, United States. The range runs ma ...

( Hidden Hills and Upper Las Virgenes Canyon Open Space Preserve) watershed, near the Leonis Adobe in the town of Calabasas. Arroyo Calabasas flows northeast through Woodland Hills and Canoga Park. In Canoga Park it joins Bell Creek, directly east of

Canoga Park High School Canoga Park High School is a high school located in Canoga Park in the western San Fernando Valley region of the City of Los Angeles, California, United States. It is in the Los Angeles Unified School District. It is located at the start of the ...

beside Vanowen Avenue. The

confluence In geography, a confluence (also ''conflux'') occurs where two or more watercourses join to form a single channel (geography), channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main ...

marks the ''"headwaters"'' of the

, . The flow of Arroyo Calabasas is entirely encased in a

concrete Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactur ...

flood control channel.

Crossings

From mouth to source (year built in parentheses): *Vanowen Street (1964) * Westfield Topanga Parking Lot (1964) * California State Route 27 - North Topanga Canyon Boulevard (1962) *Kittridge Street edestrian Bridge* Victory Boulevard (1966) *Sylvan Street rivate Pedestrian Bridge*Shoup Avenue (1964) *Oxnard Street (1963) *Fallbrook Avenue (1961) *Burbank Boulevard (1968) *Woodlake Avenue (1968) *Mariano Street (1968) *Canzonet Street (1968) *Dry Canyon Creek enters from south *Valley Circle Boulevard (1962) *McCoy Canyon Creek enters from west

References

{{Southern California major watersheds Rivers of Los Angeles County, California Tributaries of the Los Angeles River Geography of the San Fernando Valley Santa Monica Mountains Calabasas, California Canoga Park, Los Angeles Woodland Hills, Los Angeles Rivers of Southern California

Route

Crossings

See also

References