US Army Corps of Engineers
Los Angeles District

Corps signs design agreement with city for LA River Ecosystem Restoration project

U.S. Army Corps of Engineers Los Angeles District
Published Jan. 25, 2018
From left to right, Lt. Gen. Todd Semonite, commanding general of U.S. Army Corps of Engineers; Col. Kirk Gibbs, commander of the U.S. Army Corps of Engineers Los Angeles District; Gary Lee Moore, Los Angeles city engineer; and Carol Armstrong, executive officer to the Los Angeles Deputy Mayor of City Services, pose for a picture Jan. 19 after Corps of Engineers leaders presented a signed design agreement with the city to move forward with the Los Angeles River Ecosystem Restoration project.

From left to right, Lt. Gen. Todd Semonite, commanding general of U.S. Army Corps of Engineers; Col. Kirk Gibbs, commander of the U.S. Army Corps of Engineers Los Angeles District; Gary Lee Moore, Los Angeles city engineer; and Carol Armstrong, executive officer to the Los Angeles Deputy Mayor of City Services, pose for a picture Jan. 19 after Corps of Engineers leaders presented a signed design agreement with the city to move forward with the Los Angeles River Ecosystem Restoration project. The design agreement allows the Corps’ Los Angeles District to begin the preconstruction, engineering and design phase of the project.

Carol Armstrong, executive officer to the Los Angeles Deputy Mayor of City Services, left, and Lt. Gen. Todd Semonite, commanding general of the U.S. Army Corps of Engineers, right, discuss the Los Angeles River Ecosystem Restoration project during a Jan. 19 site visit.

Carol Armstrong, executive officer to the Los Angeles Deputy Mayor of City Services, left, and Lt. Gen. Todd Semonite, commanding general of the U.S. Army Corps of Engineers, right, discuss the Los Angeles River Ecosystem Restoration project during a Jan. 19 site visit.

Lt. Gen. Todd Semonite, commanding general of U.S. Army Corps of Engineers, left, and Carol Armstrong, executive officer to the Los Angeles Deputy Mayor of City Services, right discuss the LA River Ecosystem Restoration project during a Jan. 19 site visit.

Lt. Gen. Todd Semonite, commanding general of U.S. Army Corps of Engineers, left, and Carol Armstrong, executive officer to the Los Angeles Deputy Mayor of City Services, right discuss the LA River Ecosystem Restoration project during a Jan. 19 site visit.

Lt. Gen. Todd Semonite, commanding general of the U.S. Army Corps of Engineers, asks a question about the LA River Ecosystem Restoration project during a Jan. 19 site visit.

Lt. Gen. Todd Semonite, commanding general of the U.S. Army Corps of Engineers, asks a question about the LA River Ecosystem Restoration project during a Jan. 19 site visit.

LOS ANGELES – The U.S. Army Corps of Engineers Los Angeles District signed a design agreement to move forward with the LA River Ecosystem Restoration project at a recent meeting with city officials.

The agreement was formally presented to Gary Lee Moore, Los Angeles city engineer, and Carol Armstrong, executive officer to the Los Angeles Deputy Mayor of City Services, during a Jan. 19 LA River site visit with Corps senior leaders, including Lt. Gen. Todd Semonite, commanding general of the Corps; Brig. Gen. Pete Helmlinger, commanding general, South Pacific Division; and Col. Kirk Gibbs, commander of the Los Angeles District.

“Today marks an important civil works milestone for the Los Angeles District as we continue to strengthen our partnership with the City of Los Angeles,” Gibbs said. “We look forward to working with the city and moving this important project forward into the design phase.”

The project proposes restoration measures in and along an 11-mile stretch of the river to reestablish scarce riparian strand, freshwater marsh and aquatic habitat, while maintaining existing levels of flood risk management.

Habitat connections will be reestablished at major tributaries within the river's historic floodplain and to regional habitat zones of the Santa Monica, San Gabriel and Verdugo mountains.

The plan will restore about 719 acres by widening the river in key areas using terracing and restructuring channel banks to support vegetation, create side channels and off-channel marsh, daylight small streams and remove invasive vegetation. Associated recreation features include trails, vista points, educational amenities and pedestrian bridges.

Total estimated cost of the project is $1.4 billion. The design agreement will allow the District to begin the preconstruction, engineering and design phase of the project. The first project feature is scheduled to be awarded for construction in fiscal year 2022.