Upcoming Webinars

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Introduction to Dam Decommissioning
December 13, 2016 at 12:00 PM EST, 11:00 AM CST, 10:00 AM MST, 9:00 AM PST
(120 minutes)
 
As dams deteriorate, or as their purpose and benefits diminish, there may come a time when the appropriate action is to decommission the dam. For some dams, this can be a very simple, rapid and inexpensive undertaking. For other dams, it can be a very complex and costly process, requiring years to accomplish. The purpose of this webinar is to provide an overview of recent trends in dam decommissioning in the United States with an emphasis on the engineering and design aspects of dam decommissioning.
Risk Assessment for Levee Projects
January 10, 2017 at 12:00 PM EST, 11:00 AM CST, 10:00 AM MST, 9:00 AM PST
(120 minutes)
 
The USACE has been conducting economic risk analyses for evaluating benefit cost ratios for levee projects since the 1960s. With a new focus on life safety, these same analytical techniques are now being used to evaluate priorities for infrastructure investments and required design reliability to achieve various goals, including National Economic Development and life safety risk reduction.
Imminent Failure Condition: The Fontenelle Dam Incident
February 14, 2017 at 12:00 PM EST, 11:00 AM CST, 10:00 AM MST, 9:00 AM PST
(120 minutes)
 
Fontenelle Dam incident was, arguably, the largest dam incident in US history that did not result in failure. A large leak developed in Bureau of Reclamation’s new dam and quickly eroded a very large cavity on the downstream slope. It was only through large-scale and prompt intervention that the dam was saved. In the decades following the incident, few people – even at Reclamation – knew that it had occurred.
Introduction to Nature-like Fishways for Dams
April 11, 2017 at 12:00 PM EDT, 11:00 AM CDT, 10:00 AM MDT, 9:00 AM PDT
(120 minutes)
 
Dam-related problems include blockage of fish migrations, drowning hazards, failure hazards, reservoir sedimentation, habitat loss, and tailwater erosion. Some environmental problems can only be addressed through dam removal while other issues, where removal is not a viable option, can be remediated by dam modification and nature-like fish passage. Traditional fish passage projects have typically focused solely on passage of single or few large game species.
HEC-RAS 2D Modeling
May 9, 2017 at 12:00 PM EDT, 11:00 AM CDT, 10:00 AM MDT, 9:00 AM PDT
(120 minutes)
 
With the release of HEC-RAS 5.0 (and newer versions), the Hydrologic Engineering Center (HEC) has added the ability to perform two-dimensional (2D) hydrodynamic routing to the HEC-RAS computer model. This webinar will provide an overview of the new HEC-RAS 2D tools and solution processes and the basic capabilities of the HEC-RAS 2D model. The 2D flow modeling can be accomplished by adding 2D flow area element.