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Arroyo Seco Foundation

News of the Arroyo


Exciting Alternatives for Arroyo Restoration





November 18, 2016 - Here's a report on the November 15 meeting in which the Corps of Engineers presented alternatives for ecosystem restoration in the Arroyo Seco.




Colorado Boulevard


There was an air of excitement in the Pasadena Public Works conference room as the crowd gathered recently to learn about the U.S. Army Corps of Engineers program to restore the Arroyo Seco ecosystem.

A still from the USACE study cover (Photo –

Charts and maps lined the walls presenting a somewhat overwhelming array of possilities, but the one hundred or more participants who came out for the workshop had the opportunity to ask questions of the Army Corps and of the LA County Department of Public Works’ staff. Arroyo Seco Foundation representatives were also present to answer questions and address concerns.


The alternatives that were presented graphically included varied approaches to restoring eleven reaches of the Arroyo Seco from the San Gabriel Mountains down to the Los Angeles River. The basic proposals include full stream restoration, low-flow natural bottom stream channels, the removal of invasive species, and subsurface concrete box culverts to carry flood flow.

While a lot of questions went unanswered, most participants seemed positive and even enthusiastic about what they saw and told the Corps and the County as much.

A collage from the USACE study cover (Photo –

> Click here for Arroyo Seco Foundation’s answers to some of the most important questions about the ecosystem restoration program.

Source: Arroyo Seco Foundation




Arroyo Seco Foundation, 570 W. Avenue 26 #450, Los Angeles, CA 90065-1011
PO Box 91622, Pasadena, CA 91109-1622 (323) 405-7326