02/08/2019 DNR Correspondence - Laserfiche WebLink

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State of Wisconsin Tony Evers,Governor DEPARTMENT OF NATURAL RESOURCES Preston D. Cole,Secretary Northern Region Telephone 608-266-2621 WISCONSI 810 W. Maple Street Toll Free 1-888-936-7463 Spooner,WI 54801 TTY Access via relay-711 L DEPT OF NATURAL RESOURCES February 8, 2019 Field File#7.13 Mr. Dave Ferris Burnett County—Land Services Department 7410 County Road K#109 Siren, W 154872 Subject: Minerva Dam, Field File#: 7.13, Key Sequence#: 239, Burnett County, Wisconsin. Floodplain Mapping, Ordinance Adoption Notice. Dear Mr. Ferris, On July 13, 1993, the Department of Natural Resources(Department)approved the dam failure analysis for the Minerva Dam located on the Loon Creek in the SW 1/4 of the SE 1/4 of Section 26, Township 41N, Range 16, in Burnett County. Based on the results of the approved study the dam was assigned a final hazard rating of Low Hazard. The areas of potential dam failure inundation (hydraulic shadow) are adequately reflected on a map with additional information such as stationing, water surface elevations, maximum velocities, and floodway widths provided in a floodway data table. This information is provided in the following enclosures: 1. Hydraulic Shadow Map dated July 13, 1993 and titled "Figure 4, Minerva Dam, Dam Failure Flood Inundation Map" 2. Floodway data table dated July 13, 1993 and is adjacent to the map titled "Floodway Data Table" 3. Flood profile dated July 13, 1993 and titled "Minerva Lake Dam:Loon Creek 100-Year Flood Profiles" Under the requirements of Chapter 87.30, Wisconsin Statutes and Chapter NR 116.05, Wisconsin Administrative Code, the materials submitted with this letter need to be reviewed and any comments on technical aspects of the study shall be provided to the Department within thirty(30) days from the date this letter was delivered. After the 30-day review and comment period, the County shall formally adopt the above referenced materials into the floodplain zoning ordinance within six(6) months. To assist you in the adoption process, refer to Wisconsin Administrative Code, Chapter NR 116 and the procedures outlined in "Floodplain and Shoreland Zoning: A Guidebook for Local Officials". Please pay particular attention to the Class 2 notice requirements for public hearings. The second publication must be at least one week before the hearing. After the County has approved the amendment, a certified copy of the