Dams
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Emergency Action Plan (EAP)
An EAP is a major step an owner can take to protect downstream lives and property, protect his/her investment and reduce potential liability. It is a formal document that identifies potential emergency conditions at a dam and prescribes…
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Inspection, Operation and Maintenance plan (IOM)
An IOM is a major step an owner can take to protect downstream lives and property, protect his/her investment and reduce potential liability. It is a document that identifies who is responsible for operating, inspecting and maintaining a dam. It…
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Dam Failure Analysis (DFA)
A dam failure analysis (DFA) is required for all large dams under Chapter NR 333, Wis. Adm. Code. It is used for these purposes:
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Wisconsin Dams Data Downloads
The Wisconsin Dam Data Viewer provides spatial and tabular data for the statewide repository of dams.
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Dam Transfer of Ownership
If you are considering selling or buying a property which includes a dam, notify your real estate agent early in the transfer process. Realtors, attorneys and lenders are required by law to advise clients of these requirements. If dam…
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Dam search
Three search tools have been developed to obtain information about dams in Wisconsin. Two search tools determine the inspection schedules for state regulated, large dams and provide selected database information. The third search tool helps…
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Contact information
Regional staff: DNR water management engineers, by county Government contacts Central office staff Tanya Lourigan Dam Safety and Floodplain Mapping Section Chief
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Dam safety consultants
Prairie du Sac Dam, Sauk County Chapter 31, Wis. Stats. requires owners of large dams to ensure safety of their dams by hiring professional engineers licensed in Wisconsin to perform regular and frequent inspections.
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Projects of special interest
There may be dams of special interest for a variety of reasons. Some ongoing projects are detailed here. Indianford (Lake Koshkonong) Dam The DNR has decision-making authority under Chapter 31, Wis. Stats., to set lake levels. In response to…