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. � Christine Mattson From: Christine Mattson Sent: Friday, September 14, 2012 11:22 AM �To: 'dave@willettebuilding.com' Subject: 1370 Cherry Place/ Building Permit#2012-00853 Dave, Our engineer has reviewed the survey submitted for the new home proposed at 1370 Cherry Place. His comments are below. Please address his comments and submit an updated survey for our review to continue. If you have any questions, please don't hesitate to contact us. Christine Mattson Planning Assistant City of Orono 2750 Kelly Parkway ';, Orono MN ' S5356 (physical addressJ PO Box 66 ;, Crystal Bay MN ' S5323-0066 (mailing address) '� 952.249.4620 8 952.249.4616 � cmattson@ci.orono.mn.us � www.ci.orono.mn.us Office Hours: Monday- Friday 8 am to 4:30 pm OUR OFFICE WILL BE CLOSED: Monday, November 12, 2012 I have reviewed the proposed survey for the new house at 1370 Cherry Place and have the following comments: • The proposed retaining wall needs to show the top and bottom elevation along the wall and at the tallest location. Any wall over 4' in height or a tiered wall not separated by 2x the difference of the tallest wall (as measured from the face of the upper wall to the back of the lower wall) needs to be engineered by a registered professional engineer. • The grading needs to be maintained on the property. The proposed plan shows water being directed toward the home/garage to the south. • The plan needs to include silt fence location. • While the grading plan includes a lot of areas with 3:1 slopes surrounding the house. It has been my experience the homeowners do not like the steep slopes (tough to maintain/mow) and will instead add additional walls not shown on the approved plan. If additional walls are installed during the restoration, you will need to come back to amend the plan prior to installation of the walls. This will adjust the hardcover calculations and may result in the home being out of compliance with hardcover regulations. • The grading is shown to end abruptly at the 75' setback line. It again has been my experience that this tends to not take place. If additional grading occurs within the 0-75' zone, you will be required to apply for additional permits and potentially may have to go through a variance procedure. • Is any work being done to replace the existing stairs to the boat house? Many times this is not shown to be included in the project, but is then added later. If additional work is to take place on the stairs,you will need to come back for a plan amendment prior to the work taking place. Please contact me with any questions or concerns. i