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Participants of the Dam Safety II Workshop pose for a class photo in Ho Chi Minh City, Vietnam. This workshop followed the Dam Safety I Workshop in 2013 in Thailand.
Dam Safety II Workshop
7/31/2014 10:47:00 AM
Jacob Owen (far left), chief of Geotechnical Branch, U.S. Army Corps of Engineers Kansas City District, participates at the Dam Safety II Workshop on May 5 in Ho Chi Minh City, Vietnam. The workshop was a multinational effort with the Mekong River Commission, consisting of members from Cambodia, Laos, Thailand and Vietnam.
Dam Safety II Workshop
7/31/2014 10:41:00 AM
Mary Sue Bowers, natural resources specialist, Coralville Lake, talks to adjacent landowners about oriental bittersweet, an invasive species threatening Iowa’s woodlands.

7/30/2014 9:11:00 AM
Dense hydrilla beds formed along the banks of the Erie Canal, pictured in September 2013. Biologists are concerned about hydrilla spreading to multiple water bodies throughout New York and into the Great Lakes.

7/30/2014 8:53:00 AM
Invasive Air Potatoes
Air potatoes
7/30/2014 8:35:00 AM
The Invasion Curve illustrates that prevention is the most efficient and least costly method of combating invasive species. As a non-native species becomes more established over time, the effort and associated costs of addressing it escalate exponentially. (From the USDA Forest Service 2005 Invasive Plant Environmental Impact Statement)
Invasive Curve
7/30/2014 8:15:00 AM
USACE Park Ranger Joel Miller points out a landmark to his son Hudson while hiking along the North Slope Trail at Lake Sonoma June 26, 2014. The North Slope Trail at Lake Sonoma was designated a national recreation trail by the U.S. Department of the Interior.
Lake Sonoma, California
7/2/2014 2:07:00 PM
Crew members from St. Paul and Rock Islands districts install a temporary gate at Lock and Dam 5A, near Minnesota City, Minn., May 23, 2013. Since 2009, delays and interruptions have more than doubled on the nation's inland waterway locks and dams.
Temporary gate at Lock and Dam 5A,
7/1/2014 1:48:00 PM
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