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r 1. The City Survey standards require retaining walls top of wall and bottom of wall elevations to be called out (Survey 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 feet. 2. The applicant will be required to obtain a General Construction Permit (NPDES)to discharge stormwater associated with construction activity since more than 1 acre. 3. The city Survey Standards require that contours extend 50' beyond lot lines (Survey Requirement#10) 4. The city Survey standards require that any structures on adjacent properties within 50' of the property line be depicted (Survey Requirement#6) 5. The plan appears to have an extensive amount of grading work. The applicant should provide cut and fill calculations. 50-500 CUY will require a minor land alteration permit. >500 CUY will require a major and alteration permit/CUP. In addition a haul route must be supplied and approved prior to construction if fill is being brought into the project site. 6. The maximum driveway width allowed for residential properties is 20 ft. 5 ft radius flares are allowed at the connection with the roadway. As depicted the driveway flares to 35ft. The minimum driveway width is 8 ft. The driveway is likely to require a culvert at the road connection. This is not depicted on the plan. Adam From:Christine Mattson Sent:Wednesday, December 28,2016 9:59 AM To:Adam Edwards<aedwards@ci.orono.mn.us>; Roger Peitso<rpeitso@ci.orono.mn.us> Subject:500 Willow Drive S/#2016-01480 We received a building permit application for a new house(which will eventually be a guest house). Please see letter dated 12-15-2016 asking for additional information and my 12-28-2016 notes based on the updated information provided. Please review and provide comments. Thank you. Christine Mattson Planning Assistant City of Orono 2750 Kelley Parkway I Orono I MN 155356(physical address) PO Box 66 ( Crystal Bay I MN 9 55323-0066(mailing address) 9 952.249.4620 18 952.249.4616 ® cmattson@ci.orono.mn.us -t� www.ci.orono.mn.us Office Hours: Monday- Friday 8 am to 4:30 pm OUR OFFICE WILL BE CLOSED: Monday,January 2,2017 Monday,January 16,2017 2