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Background Information

Employment History

Chief of Dam Safety

Nebraska Department of Natural Resources


Board Member
Association of State Dam Safety Officials



University of Nebraska-Lincoln , Omaha

Web References (11 Total References)

An avid fan of NY Yankees ... [cached]

An avid fan of NY Yankees baseball and NY Giants football, John and his wife Ellen have two children - a daughter, Jessica (Joseph) Grogan, and son Patrick.

Pat Diederich Secretary Pat Diederich has been Chief of Dam Safety for the Nebraska Department of Natural Resources for the past six years. His previous work experience includes President and Principal Engineer for Allied Consulting Engineers, Inc.;Water Resources Engineer/Manager for Kirkham Michael & Associates; and Civil Engineer for the Sarpy County Highway and Surveying Department.
Pat earned his BSCE from the University of Nebraska-Lincoln, Omaha in 1987. Besides serving on ASDSO's Executive Committee, Mr Diederich serves on the National Dam Safety Review Board Research Work Group, the State Dam Security Panel, and as ASDSO's liaison to the USDA Natural Resources Conservation Service. His non-engineering interests include golf, tennis, and philosophy.

Association of State Dam Safety Officials [cached]

Pat Diederich, P.E. (Secretary) - Nebraska - 402/471-1222 - Fax: 402/471-2900,

Association of State Dam Safety Officials [cached]

Moderated by Patrick Diederich, Nebraska Department of Natural Resources

Field Research on Blast Effects on Embankment Dams

Action 3 News - KMTV-TV, the CBS affiliate in Omaha, Nebraska. News, Weather. > Action 3 News [cached]

"It's normally designed for a 20 year storm and it needs to survive a hundred year storm," says Pat Diederich with the Nebraska Department of Natural Resources.

People developing downstream," says Diederich.
Just like the new development below the Weibe Dam.
"If one person can lose their life because it's deep enough in a house, that's enough to take it to high hazard," says Diederich.Many homeowners may not know about the danger lurking above."The professional engineer that assists in the development of that work, it's their ethical responsibility to alert them.It doesn't always happen," says Diederich.
A half million dollars to two million dollars per dam," says Diederich.

Association of State Dam Safety Officials [cached]

Moderated by Patrick Diederich, Nebraska Department of Natural Resources

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