Department of Public Works
Watershed Management Site Index
LA County Flood Control District
Assistant Deputy Director/
Division Engineer:

Angela R. George

Assistant Division Engineers:
Terri Grant
Paul Alva

For information call
(626) 458-4300

 Los Angeles River Watershed

To create a balance between urban and natural resources within the Los Angeles River Watershed.
- Enhance water quality
- Increase flood protection
- Promote groundwater recharge
- Provide recreational and habitat growth opportunities
- Create open space
The Los Angeles River Watershed covers a land area of 834 square miles. The eastern portion spans from the Santa Monica Mountains to the Simi Hills and in the west from the Santa Susana Mountains to the San Gabriel Mountains. The watershed encompasses and is shaped by the path of the Los Angeles River, which flows from its headwaters in the mountains eastward to the northern corner of Griffith Park. Here the channel turns southward through the Glendale Narrows before it flows across the coastal plain and into San Pedro Bay near Long Beach. The Los Angeles River has evolved from an uncontrolled, meandering river providing a valuable source of water for early inhabitants to a major flood protection waterway.

The Los Angeles River Watershed Section is tasked with finding ways to restore or revitalize the channels within the watershed and thereby provide significant opportunities for recreation and aesthetic improvement for the Los Angeles metropolitan area while protecting the Los Angeles Basin from major flooding.

Section Manager: Cung Nguyen Sr Civil Engineer
Area Map: Los Angeles River
Watershed Size: 834 square miles
Supervisorial District: 1, 2, 3, 4, 5
Senate District: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
Assembly District: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16, 18, 19, 21, 22, 23, 24, 25, 27
Cities within watershed: 44 + other unincorporated communities
Land Use 37% residential 8% commercial 11% industrial 44% open space
Total Population: Approximately 9 million
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