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LETTER OF PERMISSION: The University of Wisconsin – Oshkosh in collaboration with the Wisconsin Department of Natural Resources (WDNR) proposes to conduct a research project on the impacts to headwater streams and lakes from groundwater extraction for irrigation and
municipal uses in central Wisconsin.
PROJECT DESCRIPTION AND PURPOSE: The University of Wisconsin – Oshkosh in collaboration with the Wisconsin Department of Natural Resources (WDNR) proposes to conduct a research project on the impacts to headwater streams and lakes from groundwater extraction for irrigation and municipal uses in central Wisconsin. The research project would assess the impacts of surface water discharge reduction on Emmons Creek by manipulating discharge at the reach-scale to simulate groundwater extraction in this tributary. The research project would be conducted from May 2018 through September 2023.
Information for File # MVP-2018-00741-EMN
Applicant: State of Wisconsin, c/o Steven DeVitt
Corps Contact: Eric Norton
Address: 2926 Post Road, Suite B, Stevens Point, Wisconsin 54481
E-Mail: eric.m.norton@usace.army.mil
Phone: (651) 290-5879
Project Location: NW ¼ SW ¼ of Section 13, Township 21 North, Range 10 East, Portage
County, Wisconsin
Information Complete On: April 17, 2018
Posting Expires On: May 17, 2018
Authorization Type: LOP-06-WI
This application is being reviewed in accordance with the practices for documenting Corps
jurisdiction under Sections 9 & 10 of the Rivers and Harbors Act of 1899 and Section 404 of the
Clean Water Act identified in Regulatory Guidance Letter 08-02.
Project Description: The University of Wisconsin Oshkosh in collaboration with the
Wisconsin Department of Natural Resources (WDNR) proposes to conduct a research project
on the impacts to headwater streams and lakes from groundwater extraction for irrigation and
municipal uses in central Wisconsin. The research project would assess the impacts of surface
water discharge reduction on Emmons Creek by manipulating discharge at the reach-scale to
simulate groundwater extraction in this tributary. The research project would be conducted from
May 2018 through September 2023.
The proposed work would involve the construction of a temporary 75-foot long by 9-foot wide
straight-line diversion channel between two tightly meandering bends in Emmons Creek, the
installation of a wing deflector, and the installation of a diversion structure upstream of the
project area to direct flow into the diversion channel. In addition, a temporary road would be
constructed in wetlands using timber mats to facilitate construction access to the project area.
All excavated material from the diversion channel would be stockpiled and contained in uplands
near the project area as shown on the attached figures.
Upon completion of the research project, the temporary diversion channel would be backfilled
and the diversion structures would be removed to restore the affected wetlands and natural flow
of Emmons Creek. In addition, the stream banks would be stabilized using overhead bank
covers and all disturbed soils would be revegetated with a native wetland seed mix.
Name, area, and types of waters (including wetlands) subject to loss: The proposed project
would temporarily impact 675 square feet of hardwood swamp for the construction of the
diversion channel and temporarily impact 0.17-acre of hardwood swamp for the construction of
the temporary access road using timber mats.
Threatened and Endangered species: The project area may contain critical habitat for the
Karner blue butterfly and Northern long-eared bat. Consultation with the U.S. Fish & Wildlife
Service would be required to determine if the proposed project would affect these species.
Compensatory mitigation: The applicant has proposed to restore the affected wetlands and
stream upon completion of the research project. The applicant has proposed to backfill the
diversion channel with the original soil in the order it was removed to restore the wetland and
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stream bank. All disturbed areas would be seeded with a native wetland seed mix to avoid the
introduction of non-native and invasive species into the project area. In addition, two overhead
bank covers would be installed to stabilize the affected stream banks on the upstream and
downstream ends of the project area.
Drawings
See attached.
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MVP-2018-00741-EMN, Page 1 of 6
Project Area
Project Overview Map
MVP-2018-00741-EMN, Page 2 of 6
Project Area
Wisconsin Wetland Inventory Map and Hydric Soils
MVP-2018-00741-EMN, Page 3 of 6
Upland Disposal Site
500 feet long by
15 feet wide
75 feet long by 9
feet wide - 3 feet
deep with 1:1 slope
MVP-2018-00741-EMN, Page 4 of 6
MVP-2018-00741-EMN, Page 5 of 6
Project Location:
Emmons Creek, State of Wisconsin owned land (Emmons Creek Fishery Area)
Township of Belmont, Portage County
NW1/4, SW1/4, Sec. 13, T21N, R10E
GPS - Lat: 44.29614 Long: -89.24019
Time Frame:
Starting May 15th, 2021 and will be completed by September 15th, 2021
Seeding Plan:
All disturbed soils throughout the project site will be seeded with a stabilizing grass (annual oats) and a mixture
of native grasses and forbs either collected/provided by WDNR Wildlife Staff or purchased from Prairie
Nursery Inc. All disturbed soils throughout the project will also be mulched with rye and/or oat straw.
Bank Stabilization:
Mitigation of the excavated channel will include removal of the flow manipulation structure, the installation of
2 overhead bankcovers, and replacement of excavated spoils back into to abandoned diversion channel.
-Flow manipulation structure will be completely removed from the bed of the diversion channel.
-A total of two overhead bankcovers will be installed on the outside bends of the main channel effected by
implementation of diversion channel. Covers will be installed at the head and tail of the abandoned diversion
channel. Estimated length of each overhead bankcovers is roughly 60 feet. See attached diagram of Overhead
Bankcover. Overhead covers will be seeded with a stabilizing grass and a mix of native grasses and mulched
with grain straw. Erosion control blankets (coir and/or Curlex) will be installed along all disturbed water/land
interfaces.
-The estimated 85 cubic yards of excavated spoils from the implementation of the channel will be replaced to its
original site, firmly packed into place, seeded with a stabilizing grass, seeded with a mix of native grasses and
forbs, and mulched.
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