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Jesse Struve To: Christine Mattson Subject: 20120510 3165 Casco Circle Christine, I have reviewed the grading survey for 3165 Casco Circle and have the foliowing comments: � The survey needs to include a written legal description. � The survey has a note on it saying, "survey is subject to change per title or easement information". The survey should show all easements currently recorded against the property. /: The grading on the east side of the property needs to be adjusted to manage the storm water within the property limits. The proposed grading plan will direct additional storm water towards the neighboring property. � The drawing is tough to read and determine where the existing house is situated. It might be beneficial to remove the dimensions for the existing home. � Is there going to be a retaining wall on along the edge of the driveway ciose to the garage? The finished floor elevation is 960, but the proposed contours show a 1-2' height difference. If the homeowner is planning on grading this area, it should be reflective in the proposed contours. � The grading plan shows a tiered retaining wall south of the structure which will be 6.7' in height. The tiers need to be separated by more than 2x the greater height of the walls without engineering plans and specifications. It appears both walls will be 3.2' in height which means the walls will need to be separated by 3.2'*2 = 6.4'. When I scale it off it appears the walls are only separated by about 4'. This needs to be adjusted or engineering plans and specifications. • This project will require Minnehaha Creek Watershed District (MCWD) permit. The applicant needs to submit an approved permit from MCWD. �i The driveway should be shown all the way to the road, it currently stops at the property line. Please contact me with any questions or concerns. 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 1