Arroyo Seco Watershed Assessment
3. Brookside Park Golf Course
Arroyo Seco Channel Naturalization
Purpose: | Integrated recreation, water resource, and habitat enhancement
project centered around the replacement of the concrete Arroyo Seco channel with a natural channel/floodplain system |
Location: | Within Brookside
Park from Devil’s Gate Dam downstream to San Pascual Stables |
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The Brookside Park Golf Course Arroyo Seco Channel Naturalization project is an integrated
recreation, water resource, and habitat enhancement project within Brookside Park extending
from the Devil's Gate Dam downstream to Colorado Boulevard that will improve public safety,
recreation, flood control, sedimentation, water quality, and ecosystem health not only in the
park, but also in downstream reaches extending to the Los Angeles River and beyond. This
project culminates years of grassroots planning efforts and analysis focusing on southern
California ecosystems that are becoming increasingly endangered and dynamic geomorphic
processes that cannot be ignored.
Key Project Objectives
- Improve flood water, sediment and debris storage through reestablishment of a natural channel/floodplain system
- Improve water quality using groundwater/surface interaction of restored floodplains to remove sediment and filter flows
- Restore endangered riverine and upland ecosystem communities
- Reestablish wildlife migration corridors
- Provide active and passive recreational areas that are integrated into native ecosystem habitats
- Upgrade Works Progress Administration infrastructure
Key Project Components:
- Improve flood water, sediment and debris storage through reestablishment of a natural channel/floodplain system
- Hydrologic and hydraulic as well as sediment modeling is needed to determine engineering feasibility of naturalization options.
- Rose Bowl Commission concerns:
- – Maintain the revenues from the golf course
- – Continue to use the golf course for parking during large events.
- New bridges at West Washington Boulevard and Seco Street
- Establish native ecosystem communities on floodplain terraces
along West Drive and Rosemount Avenue