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Discover
how Wisconsin protects waterways by holding them in trust for everyone to enjoy.
Find
the permits you need for your waterfront property projects.
Learn
about the permit process that protects public waters.

Waterway protection Intake/outfall structures

Intake/Outfall Structures

Outfall Structure



An intake is the inlet of a pipe, etc., that conveys water from a waterway, and an outfall is the outlet of a pipe, etc., that discharges water (stormwater, wastewater, etc.) into a waterway.

Determine permit required

This is a text link version of our Intake/Outfall interactive question and answer module. If you are seeing this message, you currently have JavaScript disabled or are in compatibility mode while using Internet Explorer. This text version is here to help you understand if you need a permit from the Wisconsin Department of Natural Resources for your Intake/Outfall project, and if so, which one. Please go through and answer each question. This will help you determine which permit you will need.

Question 1 :

Is the project located in a water body that is designated as an Area of Special Natural Resource Interest (ASNRI)?

If your answer is "Yes,” go to Question 3.

If your answer is "No,” go to Question 2.

If your answer is "I don't know,” :

You've answered I don't know:

Please use the designated waters tutorial to determine if your project is located in a water body that is designated as an Area of Special Natural Resource Interest (ASNRI)

Question 2 :

If your project is not located in an ASNRI. You may qualify for an exemption. Will your project be located within a Public Rights Feature?

If your answer is "No,” :

You've answered No:

Your project meets the locational standards to be exempt from needing a permit.

Please review the Intake or Outfall Structure Exemption Checklist at exemptions to determine if your projects meets the other standards necessary to be exempt from permitting requirements. If you are unsure if your project is exempt or not, feel free to submit an Exemption determination request form [PDF].

If your answer is "Yes,” :

You've answered Yes:

Your proposed Intake/Outfall is not eligible for an exemption or general permit from the Department. To apply for an individual permit, please visit the individual permits page.*Please note: WAMS ID and password needed to apply. If you do not have a WAMS ID, you must register for one prior to proceeding.

Please be aware there may be additional permit standards you must meet for placing an intake or outfall structure. Prior to applying for a permit please review the Permit Application Checklist [PDF].

If your answer is "I don't know,” :

You've answered I don't know:

Please use the designated waters tutorial to determine if your project is located in a water body that is designated as a Public Rights Feature.

Question 3 :

Will your project be located within a Public Rights Feature?

If your answer is "No” go to Question 4.

If your answer is "Yes,” :

You've answered Yes:

Your proposed intake/outfall structure is not eligible for a general permit from the department. Therefore, you must apply for an individual permit. To apply for an individual permit, please visit the individual permits page.*Please note: WAMS ID and password needed to apply. If you do not have a WAMS ID, you must register for one prior to proceeding.

Please be aware there may be additional permit standards you must meet for placing an intake or outfall structure. Prior to applying for a permit please review the Permit Application Checklist [PDF].

As always before starting any project please make sure that there are no federal or local regulations that prohibit the placement of a swimming raft or water trampoline in your location.

If your answer is "I don't know,” :

You've answered I don't know:

Please use the designated waters tutorial to determine if your project is located in a water body that is designated as a Public Rights Feature

Question 4 :

Most activities done in specially designated waters require authorization by the Department. Will your intake/outfall project be located in a wetland or placed in a way that affects water flow into or out of a wetland? Will the installation of the intake or outfall result in any fill (permanent or temporary) in a floodway or wetland?

If your answer is "Yes,” :

You've answered Yes:

Your proposed intake/outfall structure is not eligible for a general permit from the department. Therefore, you must apply for an individual permit. To apply for an individual permit, please visit the individual permits page.*Please note: WAMS ID and password needed to apply. If you do not have a WAMS ID, you must register for one prior to proceeding.

Please be aware there may be additional permit standards you must meet for placing an intake or outfall structure. Prior to applying for a permit please review the Permit Application Checklist [PDF].

If your answer is "No,” :

You've answered No:

Based on your answer, you are eligible for a general permitPlease visit the General permits page to apply.*Please note: WAMS ID and password needed to apply. If you do not have a WAMS ID, you must register for one prior to proceeding.

Please be aware there may be additional general permit standards you must meet for placing an intake or outfall structure. Prior to applying for a permit please review the Permit Application Checklist [PDF].

If your answer is "I don't know,” :

You've answered I don't know:

Wetlands are not always obvious. Wisconsin has more than a dozen different types and some may be dry for most or all of the year, but all wetlands are protected by law and permits are required before you build on wetlands or otherwise affect them. Please visit the Locating Wetlands page to learn more.

Exemptions


Installing a Intake/Outfall in a waterway may not need any department permits at all if your project meets certain location and construction standards. Even if the construction of intake/outfall structures does not need a permit, a separate permit may be needed for the withdrawal or release of water.

Please review the Intake or Outfall Structure Exemption Checklist at exemptions to determine if your project meets the standards to be exempt from permitting requirements.

Designated waters

Some waterways have special designation that might affect your permit requirements. Visit our Designated Waters Search, and record any waterway designations that your site may have.

If you have questions about using the designated waters search tool, you may visit our Designated Waters Search Tutorial to learn how.

Protect your waterway

Federal law requires landowers with project sites that are 1 acre in size or more to obtain stormwater management permits. Please visit Water Permits and choose the "Storm water" tab to apply for stormwater permits.

Laws

Applicable statutes and codes include Section 30.12, Wis. Stats. [PDF exit DNR] and Chapter NR 329, Wis. Adm. Code. [PDF exit DNR].

Local permits and U.S. Army Corps of Engineers regulations may also apply. We advise you to contact your local zoning office and your regional U.S. Army Corps of Engineers office [exit DNR].

Last revised: Monday November 02 2015