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Arroyo Seco Foundation

News of the Arroyo


Corps Initiates Arroyo Study





January 22, 2003 - The US Army Corps of Engineers has initiated a Watershed Study of the Arroyo Seco along with the County Department of Public Works and other local agencies. The study will prepare a comprehensive watershed for the entire Arroyo.




Arroyo Seco News


The US Army Corps of Engineers (USACE) initiated a Watershed Study of the Arroyo Seco at a meeting yesterday at the Los Angeles County Department of Public Works (LACDPW) headquarters in Alhambra. LACDPW is the lead local sponsor for the study. The purpose of yesterday’s meeting was to begin the process of defining the scope of work and to discuss how local agencies can participate in the study.

The USACE watershed study of the Arroyo Seco will develop a comprehensive watershed management plan from the entire watershed from the San Gabriel Mountains to downtown Los Angeles. The plan will include water resources, ecosystem restoration, flood management and recreational elements.

USACE studies have three phases:

1) Reconnaissance, which is now underway to determine whether there is an appropriate federal interest in the project;

2) Feasibility Study, which is now being developed; and

3) Design and Construction of projects.

Feasibility studies frequently take 3-4 years, but additional studies and projects can be spun off during the Feasibility Phase. Restoration projects in the range of $6-7 million can be approved by the USACE without congressional approval, though larger projects require congressional appropriation.

Present at the meeting were representatives of USACE, LA County Department of Public Works, Arroyo Seco Foundation, City of La Cañada Flintridge, National Park Service, Rose Bowl Operating Company, North East Trees, Pasadena Public Works Department, Raymond Basin Management Board, Metropolitan Water District, LA Regional Water Quality Control Board, Santa Monica Mountains Conservancy, Los Angeles and San Gabriel Rivers Watershed Council, Los Angeles Public Works, and Los Angeles Recreation and Parks Department.

The USACE Arroyo Seco work is made possible by an appropriation obtained by Congressman Adam Schiff, who obtained initial funding of $100,000 for the project-planning phase and to begin the Feasibility Study. Additional funding will require congressional action.




Arroyo Seco Foundation, PO Box 91622, Pasadena, CA 91109-1622 (323) 405-7326