Dewatering New York City

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Spc. Megan Koszarek, an infantryman with the Alaska Army National Guard’s Avalanche Company, 1st Battalion, 297th Infantry Regiment, conducts a security sweep during a training exercise near Joint Base Elmendorf-Richardson, Alaska, Dec. 3, 2022. The exercise's aim was to enhance the unit’s combat readiness and evaluate proficiency in an arctic environment.

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Members of the 202nd Rapid Engineer Deployable Heavy Operational Repair Squadron Engineers (RED HORSE) Squadron, Florida Air National Guard, clear roads of Hurricane Ian debris in Fort Myers Beach, Florida, Oct. 1, 2022. The 202nd RED HORSE Squadron, stationed at Camp Blanding, Florida, is a specialized, highly mobile civil engineering team of Florida Air National Guard members.

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Virginia National Guard Soldiers prepare for possible severe weather from Hurricane Ian Sept. 30, 2022, in Powhatan, Virginia. Soldiers assigned to the 180th Engineer Company, 276th Engineer Battalion, 329th Regional Support Group, were prepared to provide high mobility transport and clear debris if needed.

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U.S. Army Soldiers with the Florida National Guard's Chemical, Biological, Radiological/Nuclear, and Explosive - Enhanced Response Force Package load supplies as part of their response to Hurricane Ian, Sarasota, Fla., Sept. 29, 2022. Soldiers and Airmen were joined by emergency responders from other states as they mobilized to support the local community.

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Florida National Guard Army Pfc. Kenneth Bonn, a combat engineer with the 753rd Engineering Brigade, inspects a search and rescue vessel during Hurricane Ian state activation, Camp Blanding Joint Training Center, Fla., Sept. 27, 2022. Bonn is part of the Florida National Guard's Chemical, Biological, Radiological/Nuclear, and Explosive (CBRNE) - Enhanced Response Force Package (FL-CERFP).

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Video by Mary Cochran

Dewatering New York City

U.S. Army Corps of Engineers Headquarters

Nov. 14, 2012 | 0:45

Assigned by the Federal Emergency Management Agency (FEMA), the U.S. Army Corps of Engineers provided technical assistance and dewatering to 14 locations in the New York City metro area. Available in high definition. Through a partnership of private industry professionals and city and federal agencies, flood waters from nine FEMA mission-assigned transit locations in New York City were removed less than two weeks after Hurricane Sandy's record-level storm surge inundated the area. Dewatering operations at five other FEMA mission-assigned locations in the New York City metro area have also been completed. Storm surge from Hurricane Sandy flooded New York City's network of underground tunnels with nearly 300 million gallons of seawater. Five subway tubes, two AMTRAK tunnels and three of the city's primary roadways, including the longest coastal tunnel in North America was flooded by storm. Joint Task Force Unwatering, assisted by the United States Navy's Supervisor of Salvage and Diving (SUPSALV), and the U.S. Coast Guard Strike Force teamed with the New York District, AMTRAK, the Metropolitan Transit Authority, and other city, local, state, and federal organizations to unwater the major tunnels under New York City in less than two weeks. The dewatering task force, led by USACE, concluded its transit dewatering mission in New York City on Nov. 10 with approximately 275 million gallons of saltwater removed from tunnels, underpasses, and other areas in the New York City metro area.