2010-00721 - land alteration - Laserfiche WebLink

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Minor Land Alteration: Description of Work Nathan VanCamp 601 Minnetonka Highlands Lane Orono, MN 55356 The line colors noted in the description below are referring to the map that is included with this application which is titled"Description of Work." 1. Existing Land Contour The south western corner of the property is the highest elevation. From that point the property slopes down to the northern, northeastern and eastern corners. The total change in slope from the south west corner to all other corners is roughly 10 feet. The proposed fill area(Black line) is fairly level, however it has a slight slope as indicated(Green lines). The proposed fill area is the lowest grade on the property. The proposed fill area has a steep bank along all sides. This bank follows the outlined fill area line. Along Minnetonka Highlands Lane (southern side)the bank is approximately 4 feet high and tapers down along Tonkawa Road (eastern side) and is about 18 inches at the north eastern corner. Along Elm Street(northern side) the proposed fill area this bank is approximately 18 inches high. There is an 18 inches bank along the north western edge of the proposed fill area, and slopes up to approximately 3.5 feet at the south western corner of the fill area. 2. Proposed Land Contours The proposed fill area is approximately 40 feet wide and 100 feet long. Around 250- 300 cubic yards of fill will be brought in(see included Fill Hauling Route)to raise the elevation approximately 18-24 inches. This will eliminate the bank along the western portion of the fill area and make the back yard level with the fill area. Fill material will be comprised of 14-18 inches of a clay/sand mixture and will be topped with 4 inches of black dirt. The fill area will be graded to maintain the current slope (Green lines). A swale will be made along the western and northern most edges of the fill area to capture and direct water run off from both the streets and the property (()rxn�;e lines). This will flow into the culvert(Brown lines) along the northern edge of the property. This culvert directs the water into the ditch along Elm Street. 3. Erosion Control Plan During the filling and grading activities a silt fence (Red lines)will be installed between the fill area and the culvert along Elm Street. This will capture any soil that erodes during rain storms. Grass will be planted on the entire fill area. Once the seed has completely rooted in the silt fence (Red lines)will be removed.