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Protect
wetlands through land use planning, acquisition and wetland protection laws.
Restore
wetlands to improve wetland health and function and by re-establishing destroyed wetlands.
Explore
wetlands by getting your feet wet and learning about their wonders.

Wetland boundary delineation

Determining wetland boundaries

Anyone planning a development project must know precisely the boundaries of wetlands on the property as determined through procedures specified in state and federal rules. A wetland professional is generally required to make the boundary determination and their findings are subject to review by regulatory agencies.

All determinations must follow the requirements specified in these documents:

Wisconsin Wetlands 1987 COE Manual
  1. Chapter NR 103, Wis. Adm. Code
  2. Chapter NR 352, Wis. Adm. Code
  3. The 1987 U.S. Army Corps of Engineers Wetland Delineation Manual [PDF exit DNR]
  4. The proper U.S. Army Corps of Engineers Regional Supplement for your location.
  5. Guidance for Submittal of Delineation Reports to the St. Paul District Army Corps of Engineers and the Wisconsin DNR [PDF]

Wetland delineation classes

Each year the University of Wisconsin–La Crosse holds wetland delineation workshops. These two–and–a–half day workshops are held in La Crosse and at an alternate location in Wisconsin that changes each year. The courses are taught by experts and will be of interest to anyone who delineates wetlands or wishes to learn how to delineate wetlands in Wisconsin.


2016 Critical Methods Seminar

Title Presenter
Understanding drainage equations [PDF] Greg Larson
Wisconsin Wetland Conservation Trust, In lieu fee program [PDF] Matt Matrise
Wetland compensatory mitigation program update [PDF] Pam Schense
Practicable alternatives review [PDF] Scott Koehnke
Normal circumstances for critical methods [PDF] Steve Eggers
Off-site wetland determination example [PDF] Steve Eggers
Artificial wetland exemption process [PDF] Tom Nedland
Wetland delineation special considerations [PDF] Tom Nedland

Wetland delineation professional assurance

DNR has established a professional assurance program for those highly experienced professional wetland consultants that meet certain qualifications. Professional assurance means that the work of individuals meeting training and performance standards will receive spot checks rather than individual review. This should result in faster decisions and improved wetlands protection. For information and instructions, refer to:
Wetland delineation professional assurance initiative.

Contact information
For information on wetland boundary delineation, contact:
Thomas Nedland
Wetland Identification Coordinator
Last revised: Tuesday March 15 2016