laco seal
Department of Public Works
Go to DPW home

Sediment Management

Devils Gate Dam
The Los Angeles County Flood Control District is pleased to announce the release of the Final Environmental Impact Report (Final EIR) for the Devil's Gate Reservoir Sediment Removal and Management Project.
The Final EIR contains responses to comments received on the Draft EIR during the public review period, October 23, 2013 to January 21, 2014. The Final EIR also reflects changes to lessen impacts to air quality, traffic, and biological resources.
The Final EIR can be viewed in its entirety here.
Hardcopies of the Final EIR will be available for review until December 11, 2014 at the following locations:
  • Pasadena Central Library, 285 East Walnut Street, Pasadena, CA
  • Altadena Library District, 600 East Mariposa Street, Altadena, CA
  • La Cañada Flintridge Library, 4545 North Oakwood Avenue, La Cañada Flintridge, CA
  • County of Los Angeles Department of Public Works, 900 South Fremont Avenue, Alhambra, CA available at the 2nd floor public counter
A description of the Recommended Project is available on the website here.

Three community Informational Meetings will be held to present the findings and results of the FEIR. Additionally, the project alternative that Public Works recommends to implement will be presented at the meeting.
Please join us at one of our three Informational Meetings on this important flood risk reduction project.
Sat. November 1, 2014
1:30 p.m. - 3:00 p.m.
John Muir High School
1905 Lincoln Avenue
Pasadena, CA 91104
Mon. November 3, 2014
6:30 p.m. - 8:00 p.m.
Jackson Elementary School
593 West Woodbury Road
Altadena, CA 91001
Thu. November 6, 2014
6:30 p.m. - 8:00 p.m.
Descanso Gardens
Maple Room
1418 Descanso Drive
La Cañada Flintridge, CA 91101
Click here for the Informational Meeting Flyer.

Since 2011, the Los Angeles Flood Control District (LACFCD) has implemented interim measures at Devil's Gate Dam and Reservoir which consisted removing sediment from the area immediately in front of the dam and placing it in Johnson Field.
This fall, LACFCD is once again planning to remove accumulated sediment near the face of Devil's Gate Dam. Due to the extremely dry storm season this past year, the anticipated amount of sediment to be removed is less than 5,000 cubic yards. As with previous years, sediment will be stockpiled at Johnson Field to be removed when the larger Devil's Gate Sediment Removal and Management Project takes place. Additionally, any green waste such as tree branches and other vegetative matter that is removed will be trucked to the Scholl Canyon Landfill in Glendale at a rate of no more than 10 trucks per day to avoid traffic impacts to the surrounding neighborhood. Attached is an informational flyer that will also be posted at the Dam near the surrounding trails. Work on this year's interim measures is expected to start September 15, 2014 and be completed in approximately two months.
Click here for the 2014 Interim Measures Flyer.
For more information on the EIR or to be added to the project mailing list, please contact
Updated on: 10/20/2014