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The Arroyo Calabasas (left) and Bell Creek (right) join to form the Los Angeles River LA River near downtown LA during drought in 2014. The Los Angeles River's official beginning is at the confluence of two channelized streams – Bell Creek and Arroyo Calabasas – in the Canoga Park section of the city of Los Angeles, just east of California State Route 27 (Topanga Canyon Boulevard), at (the ...
The stream drains a watershed of 42.1 square miles (109 km 2). [2] and is the last major tributary to enter the Los Angeles River before it reaches the Pacific Ocean. The stream begins just east of South Main Street between 107th and 108th Streets in Los Angeles. Compton Creek passes through Willowbrook and runs 8.5 miles (13.7 km) in total. [2]
The Sepulveda Dam is a dry dam constructed by the U.S. Army Corps of Engineers to withhold winter flood waters along the Los Angeles River.Completed in 1941, at a cost of $6,650,561 (equivalent to $137,766,000 in 2023), it is located south of center in the San Fernando Valley, approximately eight miles (13 km) east of the river's source in the western end of the Valley, in Los Angeles, California.
Map showing the main Orange County watersheds and watercourses. This is a list of rivers of Orange County, California, part of the Greater Los Angeles Area in Southern California.The Santa Ana River and San Gabriel River are the largest in Orange County; their extensive watersheds extend into neighboring Los Angeles, Riverside and San Bernardino Counties.
Sometimes, from its formidable mountainous watershed, the river flooded. The L.A. River and the Mississippi River both drop approximately the same distance — 800 and 600 feet, respectively ...
The Arroyo Calabasas (left) and Bell Creek (right) join to form the Los Angeles River. The stream begins with the merging of: Dry Canyon Creek from a Santa Monica Mountains watershed and McCoy Canyon Creek from a Simi Hills (Hidden Hills and Upper Las Virgenes Canyon Open Space Preserve) watershed, near the Leonis Adobe in the town of Calabasas.
The Arroyo Seco, meaning "dry stream" in Spanish, is a 24.9-mile-long (40.1 km) [4] seasonal river, canyon, watershed, and cultural area in Los Angeles County, California. The area was explored by Gaspar de Portolà who named the stream Arroyo Seco as this canyon had the least water of any he had seen.
The San Gabriel River (right of the I-605 here) changes from dirt to concrete channel in Downey, near the Rio San Gabriel Park (right center) The San Gabriel River basin drains a total of 689 square miles (1,780 km 2) [3] and is located between the watersheds of the Los Angeles River to the west, the Santa Ana River to the east, and the Mojave Desert to the north.