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Christine Mattson From: Christine Mattson Sent: Thursday, December 29, 2016 10:26 AM To: 'steve.clinton@nor-son.com'; Peter Eskuche - Eskuche Associates (peter.eskuche@nor- son.com) Cc: merry.graham@gmail.com'; Mark Gronberg; Melanie Curtis Subject: 500 Willow Drive S/#2016-01480 Attachments: Survey Requirements -August 2015.pdf Steve, Our engineer has reviewed the proposed survey dated 12-15-16 and has the following comments: 1. The City Survey standards require: a. Top and bottom of wall elevations to be called out(requirement#23). Walls greater than 4' in height must be designed by a licensed professional,and plans must be submitted to the City for review prior to the approval of the permit. Tiered walls are considered one wall unless they are separated by at least twice the height of the higher wall. Per the house profile views it appears the walls could be as high as 11'. Please clarify and provide necessary information. b. Contours extend 50' beyond lot lines (requirement#10) c. Any structures on adjacent properties within 50'of the property line be depicted (requirement#6). 2. Grading is proposed up to the property line on the south side of the property. No grading is allowed within 5' of the property line. Please update. 3. Unless being constructed at this time,all future elements on the survey will be red lined and marked "NOT PERMITTED". (Possible Future Home; Possible Future Driveway; Future Gravel Parking) Please provide clarification. 4. The landscape plan does not match the survey. Please have the plans updated to coordinate. 5. The grading associated with the possible future house and driveway may require a CUP. Clarification is needed regarding the earthwork proposed at this time. The applicant should provide cut and fill calculations-50-500 CUY will require a minor land alteration permit; >500 CUY will require a major land alteration permit and a CUP. In addition,a haul route must be supplied and approved prior to construction if fill is being brought into the project site. a. The applicant will be required to obtain a General Construction Permit(NPDES)to discharge stormwater associated with construction activity of more than 1 acre. 6. The maximum driveway width allowed for residential properties at the property line is 20'. 5-foot radius flares are allowed at the connection with the roadway. As depicted the driveway flares to 35'. The driveway is likely to require a culvert at the road connection. This is not depicted on the plan. Provide clarification. Please don't hesitate to contact us if you have any questions. Christine Mattson Planning Assistant City of Orono 2750 Kelley Parkway I Orono I MN 155356(physical address) PO Box 66 I Crystal Bay I MN 155323-0066(mailing address) 2 952.249.4620 18 952.249.4616 ® cmattson@ci.orono.mn.us I -t�www.ci.orono.mn.us i