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LRH 2015-840-WAL

Published Oct. 5, 2016
Expiration date: 10/20/2016

TO WHOM IT MAY CONCERN:  The intent of this Public Notice is to provide an opportunity for the public to express their views on proposed adverse effects to historic properties associated with the Six Mile Dam.


APPLICANT:            Ohio Department of Natural Resources (ODNR)

                                    2045 Morse Road, Building E-3

                                    Columbus, Ohio 43229


LOCATION:  The proposed project site is located within the Walhonding River (Mile Point 8.75) approximately 2.0 miles east of the town of Warsaw, in Coshocton County, Ohio County, Ohio (40.32757° N, -81.96514° W). Refer to the attached project location map (Enclosure 1).


DESCRIPTION OF PROPOSED WORK:  The applicant has requested a Department of the Army permit (DA) authorization for the proposed discharge of dredged and/or fill material into waters of the United States associated with the Six Mile Dam Removal Project. The purpose of the overall project is the removal of the deteriorating Six Mile Dam and the restoration aquatic habitat in the area.

The applicant proposes to remove a 354-foot long low head dam located within the Walhonding River in association with an effort to restore and enhance the natural ecosystem and the surrounding habitat. The dam appears to be a migratory barrier for fish species and a sediment barrier for downstream areas. The applicant has requested a DA authorization to permanently discharge approximately 560 cubic yards of dredged and/or fill material of dredged and/or fill material into 0.09 acre of the Walhonding River to facilitate the dam removal and restoration activities. A rock vane and earthen flow control structure would be constructed approximately 1,500 feet upstream from the dam to control and divert flow into the main southern channel of the Walhonding River while maintaining the northern cut-off channel.  The proposed project is expected to result in a net gain of aquatic resource functions and services.

The project proposes the removal of the 354-foot dam, but the shoreward abutments on either side of the river would remain in place to reduce the risk of destabilization. During the removal of the dam, the project may require additional discharges to ensure downstream bank stabilization, to manage flows, or to address safety concerns encountered during the dam removal activities. Due to sediment buildup over life of the dam, re-grading may be required to restore a natural channel design, to control grade, and to create stream riffles. Refer to the enclosed Conceptual Restoration Plan and Conceptual Cross Section of Dam Removal (Enclosures 2 and 3) for a depiction of the proposed restoration activities.

The proposed activities are under consideration for a DA authorization under the United States Army Corps of Engineers (Corps) Nationwide Permit (NWP) No. 27: Aquatic Habitat Restoration, Establishment, and Enhancement Activities.  General Condition #20 of the NWPs states no activity which may affect historic properties eligible for listing in the National Register of Historic Places (NRHP) is authorized until the Corps has complied with the provisions of 33 CFR Part 325 Appendix C.  This condition also states the applicant must notify our office if the proposed activity may affect any historic property listed, determined to be eligible, or which the prospective permittee has reason to believe are eligible for listing on the NRHP.  The Corps is mandated by the National Historic Preservation Act (NHPA) to ensure no federal undertaking, including a Corps permit action, which may affect historic resources, is commenced before the impacts of such action are considered and the Advisory Council on Historic Preservation and the State Historic Preservation Office are provided an opportunity to comment as required by the NHPA, 36 CFR 800, and 33 CFR 325, Appendix C. 


Upon review of the project, the Corps has determined that the Six Mile Dam and an associated structure (106 Six Mile Drive) would be eligible for inclusion on the NRHP under Criteria (a) and (c).  In evaluating the applicant’s DA permit request, the Corps has determined the proposed undertaking would have an adverse effect on the Six Mile Dam.   

The ODNR has proposed to mitigate for the proposed adverse effect, through the development of an approved Memorandum of Agreement (MOA) that would include agreed upon mitigation measures. The terms and conditions of the final MOA would be made a part of any DA authorization for the proposed project.  This Public Notice serves to solicit public input on potential mitigation activities to resolve the adverse effects to the Six Mile Dam.


PUBLIC INTEREST:  The Corps is soliciting comments from the public, Federal, state and local agencies and officials, Indian Tribes and other interested parties in order to consider and evaluate the proposed adverse effect on historic properties. Should you wish to express your views on the undertaking’s effects on historic properties, or provide comments, objections or mitigation proposals associated with the proposed undertaking, please forward this information to our office prior to the close of the comment period for this Public Notice. 


CLOSE OF COMMENT PERIOD:   All comments pertaining to this Public Notice must reach this office on or before the close of the comment period listed on page one of this Public Notice.  Persons wishing to submit comments or objections concerning this proposal should write:


                        United States Army Corps of Engineers

                        ATTN: CELRH-RD-N

                        Public Notice No.: LRH-2015-840-WAL

                        502 8th Street

                        Huntington, West Virginia 25701-2070


Please note, those who submit comments in response to this Public Notice become part of our administrative record and, as such, are available to the public under provisions of the Freedom of Information Act.   If you have any questions concerning this public notice, please contact Mr. Wes Barnett by phone at 304-399-6905 or via e-mail at