Erosion Control General Permit Availability
This layer is used to determine general permit availability for streambank erosion control structures. It is intended to be used in conjunction with other map layers, such as local and county roads, major highways, rivers, town, range and section. Once the user locates their area of interest by using familiar landmarks, then the user can determine which General Permit types are available, based on their particular location. The Erosion Control General Permit Availability data layer is a composite of three spatial layers representing the three criteria that together determine the permit availability according to NR328 subchapter III.
The three determining layers are:
Omernik Ecoregions (compiled at 1:2,000,000 scale) --
This layer is comprised of homogeneous areas (polygons) with the attribute of Omernik Ecoregions (Level III classifications), the original six ecoregions aggregated into four regions:
“Driftless Area” joined with “Prairie Pothole Region”;
“Southeastern WI Till Plains” joined with “Chiwaukee Prairie Region”;
“North Central Hardwood Forests” and “Northern Lakes and Forests” remain unchanged.
DNR 24K Watersheds (compiled at 1:24,000 scale) --
This watersheds layer has a total of 334 watershed polygons, with 27 of those polygons designated as an “Urban” watershed by predominant land use within the watershed. The remaining watershed polygons are“Non-urban”.
U.S. Census Minor Civil Divisions (compiled at various scales) --
Tiger 2000 Census data (revised in 2004) containing City, Village and Town delineations. A new field was added, and the values of “City” and “Village” were aggregated to become a new value,”City or village”. The value of “Town” becomes a new value, “Not a city or village”.
Making the layer visible -- The user must make the “Erosion Control General Permit Availability” layer visible. This is done by finding the blue toolbar under the green banner that says “Surface Water Data Viewer”. Clicking on the first word on the left, “Layers”opens up a column listing of folders directly underneath the Layers button. The seventh folder down from the top is called “Permits & Related Data” folder, within that folder is the “Erosion Control General Permit Availability” layer. The box in front of the layer name will initially be grayed out. This means that the layer won’t display until the user zooms in to a scale that is larger than 1:800,000. Keep zooming in until the box turns white, then check the box to display the layer.
Using the identify tool -- When the identify tool button is selected, the user can move the cursor to an area of interest, and click the mouse button. The mouse click will return a report of all the visible layers in a column on the left side of the map, labeled “Identify Results” at the top. A printer icon in the upper right corner will allow printing of this report. The format of the “Erosion Control General Permit Availability” report is shown below:
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Erosion Control General Permit Availability |
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Ecoregion: |
Driftless Area and Prairie Pothole Region \ North Central Hardwood Forests \ Northern Lakes and Forests \ Southeastern WI Till Plains and Chiwaukee Prairie Region |
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Watershed Land Use: |
Non-urban \ Urban |
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City or Village?: |
City or village \ Not a city or village |
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Potential GP Availability: |
Bio Stabilization, Integrated Bank Treatment, Replacement of Seawall or RipRap Bank Erosion Control Structure with Integrated Bank Treatment or Bio Stabilization, Repair of RipRap Bank Erosion Control Structure or combination of all of the above. |
Map Legend
Erosion
Control GP Availability
Improvement of Existing Structures Only
Improvement of Existing Structures or New Non-Riprap
All General Permits Available
The three shades of green represent the three possible classes of permits available to the property owner as determined by the “Erosion Control General Permit Availability” layer.
The lightest shade of green represents areas where existing shoreline seawall or RipRap structures will be granted a general permit to replace them with biostabilization or integrated bank treatments.
The medium shade of green represents areas where existing shoreline seawall or RipRap structures will be granted a general permit to replace them with biostabilization or integrated bank treatments or allow the installation of new biostabilization or integrated bank treatments.
The darkest shade of green represents areas where existing shoreline seawall or RipRap structures will be granted a general permit to repair them or replace them with biostabilization or integrated bank treatments or allow the installation of new biostabilization or integrated bank treatments.
For more information, please contact your local Water Management Specialist or see the Waterway Permits pages.