Lower Sioux Indian Community Riverbank Stabilization

U.S. Army Corps of Engineers, St. Paul District
Published Aug. 30, 2023
Expiration date: 9/30/2023

1. Project Proponent. St. Paul District, Corps of Engineers, 332 Minnesota St.,
Suite E1500, St. Paul, MN 55101.

2. Project Authority. The proposed actions would be authorized under Section 203
of the Water Resources Development Act (WRDA) of 2000, as amended, (33 U.S.C. §
2269). Section 203 authorizes the Secretary of the Army to carry out the Tribal
Partnership Program (TPP), consisting of water–related planning activities, and
activities related to the Study, design, and construction of water resource development
projects that substantially benefit federally recognized Indian tribes. Authorized activities
include projects for flood damage reduction, environmental restoration and protection,
and preservation of cultural and natural resources; watershed assessments and
planning activities; and other projects the secretary, in cooperation with Indian tribes
and the heads of other federal agencies, determines to be appropriate. Section 203 of
the WRDA of 2000 provides the U.S. Army Corps of Engineers (USACE) with the
authority to plan, design, and construct.

3. Project Location. The proposed actions would be in Redwood County,
Minnesota along the right descending bank of the Minnesota River within the Lower
Sioux Indian Community.

4. Summary of the Proposed Project.

a. The project involves stabilizing a portion of the Minnesota River streambank
along the Lower Sioux Indian Community reservation. The streambank would be
riprapped from the toe of the bank to the top of the bank at a 2H:1V slope. The
rock would be placed at the toe of the bank and built up without any grading of
the existing vertical banks. Seven bendway weirs would be included to alter the
flow pattern of the channel, pushing the energy away from the bank and toward
the center of the channel

b. The project would result in the temporary loss of 2.1 acres of wetland. Bedding
and riprap would be discharged below the ordinary high-water mark along 1,500
linear feet of the Minnesota River resulting in a 1.22-acre permanent impact.

c. Temporary wetland impacts would be restored following construction and
therefore no mitigation is proposed for these impacts.

5. Construction Schedule. Construction of the proposed actions is scheduled to
be carried out beginning in 2025.

6. Permits/Coordination.

a. General. The proposed action has been coordinated with the U.S. Fish and
Wildlife Service, U.S. Environmental Protection Agency, Minnesota Department of
Natural Resources and Minnesota Pollution Control Agency.

b. State. The filling for the proposed project is subject to regulation by the U.S.
Environmental Protection Agency in accordance with Section 401 of the Clean Water
Act. A request for Water Quality Certification will be made to the U.S. Environmental
Protection Agency.

c. Federal. A Draft Environmental Assessment and Finding of No Significant
Impact was prepared and is being coordinated in accordance with the National
Environmental Policy Act. Coordination with the U.S. Fish and Wildlife Service occurred
during the planning process. A Section 404(b)(1) evaluation was prepared in
accordance with the Clean Water Act of 1977.

7. Summary of Environmental Impacts. The proposed action would result in
minor short-term effects to noise, air quality, water quality and recreation during
construction. However, stabilization of the streambank would result in long-term
beneficial impacts to fish, wildlife and recreation by halting erosion and the loss of
habitat. The inclusion of bendway weirs would create habitat for numerous fish species.
The Minnesota River would be impacted long-term by the placement of riprap along the
streambank; however, this impact is expected to be minor.

8. Report. A Draft Environmental Assessment that describes the project and the
environmental impacts in detail is available to the public and can be viewed at
https://www.mvp.usace.army.mil/Home/Public-Notices/. The report includes project
drawings, a Draft Finding of No Significant Impact, and letters of coordination from
regulatory agencies.

9. Public Hearing Requests. The Section 404(b)(1) evaluation is being distributed
as part of this environmental assessment. Anyone may request a public hearing on this
project. The request for a public hearing must be submitted in writing to the District
Engineer within 15 working days of the date of this Public Notice. Interested parties are
also invited to submit to this office written facts, arguments, or objections to this project
within 30 days of the date of this Public Notice for consideration within the
Environmental Assessment. These statements should clearly state the interest the
project would affect and how the project would affect that interest. A request for public
hearing may be denied if substantive reasons for holding a hearing are not provided or
there is otherwise no valid interest to be served. All statements will become an official
part of the project file and will be available for public examination.

10. Review and Comment. The draft environmental assessment is being made
available for a 30-day public review and comment period. Persons submitting comments
are advised that all comments received will be available for public review, to include the
possibility of posting on a public website. Individuals are requested not to include
personal privacy information, such as home addresses or home phone numbers, in their
comments, unless they do not object to such information being made available to the

The document can be viewed at https://www.mvp.usace.army.mil/Home/Public-Notices/.
Questions on the project or comments on the Environmental Assessment can be
directed to LeeAnn Glomski at LeeAnn.M.Glomski@usace.army.mil. Please address all
formal written correspondence on this project to District Engineer, St. Paul District,
USACE of Engineers, ATTN: Regional Planning and Environment Division North, 332
Minnesota St., Suite E1500, St. Paul, MN 55101.