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Title: WinDAM B earthern embankment overtopping analysis software

Author
item VISSER, KARL - Natural Resources Conservation Service (NRCS, USDA)
item Hanson, Gregory
item TEMPLE, DARREL - Retired ARS Employee
item LOBRECHT, MORRIS - Retired Non ARS Employee
item NEILSEN, MITCHELL - Kansas State University
item FUNDERBURK, TONY - Natural Resources Conservation Service (NRCS, USDA)
item MOODY, HELEN - Natural Resources Conservation Service (NRCS, USDA)

Submitted to: Joint Federal Interagency Sedimentation and Hydrologic Modeling
Publication Type: Proceedings
Publication Acceptance Date: 3/15/2010
Publication Date: 6/29/2010
Citation: Visser, K., Hanson, G.J., Temple, D.M., Lobrecht, M., Neilsen, M., Funderburk, T., Moody, H. 2010. WinDAM B earthern embankment overtopping analysis software. Proceedings of the Joint Federal Interagency Sedimentation and Hydrologic Modeling Conference, June 27 - July 1, 2010, Las Vegas, Nevada. CD-ROM.

Interpretive Summary: A computer program, Windows Dam Analysis Modules (WinDAM), is being developed for the engineering profession to perform analysis of overtopped earth embankments and embankment erosion during flood events. The development is being carried out in stages. The initial stage of model development evaluated the potential for grass or stone on the embankment slope to delay or prevent erosion of the embankment surface. That model has now been developed to include analysis of the auxiliary spillways. The next stage of development presently underway as described in this paper includes erosion and potentially failure of the earthen embankment by overtopping due to floodwaters. A future generation of this model is planned that will model other forms of erosion and failure of the embankment, more complicated materials, and additional embankment protection methods.

Technical Abstract: Windows Dam Analysis Modules (WinDAM) is a modular software application being developed for the analysis of overtopped earth embankments and internal erosion. The development is being carried out in stages. The initial computational model development addressed routing of the flood through the reservoir with dam overtopping and evaluation of the potential for vegetation or riprap to delay or prevent failure of the embankment. That model, WinDAM A+, has now been developed which includes auxiliary spillway erosion technology. The next computational model development is WinDAM B, which is presently underway and is described in this paper, includes erosional failure of a homogeneous embankment through overtopping and drainage of stored water. Later planned expansion of the model is anticipated to include analysis of internal erosion, non-homogeneous embankments, and embankment protection analysis.