2012-00489 - new structure - Laserfiche WebLink

Home Browse Search

Chr�stine�Mattson From: Jesse Struve O�O Sent: Monday, June 25, 2012 12:27 PM �0� To: Melanie Curtis; Christine Mattson � Subject: 20120625 3980 Dahl Rd -#2012-00489 Melanie, I have reviewed the grading plan for the proposed permit (plan dated 5/30/12) and have the following comments: • The plans show retaining walls being installed up to the 75' setback line, but does not show any proposed contours next to these walls. Grading will be required to take place next to these walls which will extend into the 0-75' zone. The proposal should indicate how much earth will be moved and if more than 10CY of material is planned to be moved, a Conditional Use Permit would be required. • The retaining walls by the lake do not have the correct spacing between the walls and require plans and specification signed by a professional engineer. The spacing between the walls need to be 2x the height of the taller wall. Currently the plan shows a height of the middle wall at 3.5' so the spacing between the walls needs to be a minimum of 7' or provide a plan signed by a registered engineer. The walls are currently shown to be approximately 4-5' apart (scaled off). • A portion of the retaining wall by the driveway is called out to be 4' in height. If changes are made in the field and the final height of the wall exceeds 4',the applicant will be required to submit engineering plans for the wall. • Just north of the City's sanitary sewer lift station, there is an area of significant erosion. In order to minimize the impact of the work to the homeowner,the City would want to work with the builder to correct this issue during construction of the home. Currently,the City does was not planning on doing this work immediately, but if the contractor would be willing to assist our Public Works Department, we would be willing to correct this issue this year. The help needed would be to create an access path to the area of the erosion path and would require a few trees to be removed. In turn the City would be willing to provide the labor, materials, and equipment to correct the erosion currently taking place. If you have any additional questions, please contact me. Jesse Struve, PE Director of Public Works/City Engineer City of Orono (952) 249-4661 - Direct (952) 249-4616- Fax www.ci.orono.mn.us �, - C /�>� - C C`�%�''/ 1 =�l} �% /�Cr G��l /�c�