03-26-2003 Council Agenda - Laserfiche WebLink

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PERMITS Permits are required from the DNR Section of Fisheries for plant restoration activities that include: • planting and collecting plant materials (including seeds, rootstock, tubers, seedlings and transplanting) from below the ordinary high water mark (OHW)* in protected waters • applying herbicides below the OHW in public waters • . removing emergent vegetation • relocating / removing floating bogs Permits may be required from the DNR Division of Waters and /or local units of government for modifications made to the shoreline (e.g., grading, filling in erosion prone areas) and /or installing structures (e.g., wavebreakers). If you are not sure whether or not you need permits call your local DNR office. The project leader and landowner are responsible for obtaining the required permits. Permits must be obtained before any work can begin. "The ordinary high water mark (OHW) for lakes and wetlands is an elevation delineating the highest water level that has been maintained for a sufficient period of time to leave evidence on the landscape, commonly that point where the vegetation changes from predominantly aquatic to predominantly terrestrial. For watercourses, the OHW is the elevation of the top of the bank of the channel. The OHW elevation is the boundary of DNR jurisdiction and is the reference point for building and sewer setbacks. SITE PREPARATION AND PLANTING STRATEGIES Site preparation is a very important part of a successful native planting. Eliminating invasive weeds and preparing the planting area before planting will make the planting day easier and greatly reduce the maintenance requirements in the future. Aquatic Zone Preparation: Install wavebreaks. Wavebreaks are temporary structures that protect aquatic plants from wind and boat generated waves while they become established. A variety of materials can be used as wavebreaks, including floatation silt curtains, coconut rolls, brush bundles, or several layers of snow fence and logs that are staked to the lake bottom. (Check with the DNR Area Hydrologist about permitting needs). RSWCD recommends using plastic snow fence and t- posts. Install the t -posts first, than double the snow fence lengthwise and attach to t -posts using zip ties. Be sure to pull the snow fence tight. Two rows about 3 feet apart may be necessary in areas with a lot of wave action. Install wavebreaks prior to planting and locate them approximately 10 feet from shore or in water <3 feet deep. They should be placed so that they create an area of calm water for the plants to become established in. The top of the wavebreak should be at least one foot above the water surface, while the bottom should be firmly anchored on the lake substrate.