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Y_ .�.E � <br /> PC Exhibit L 2335 Highway 36 W <br /> St.Paul,MN 55113 <br /> Tel 651-636-4600 <br /> Fax 651-636-1311 <br /> www.bonestroo.com <br /> �Bonestroo <br /> July 3, 2007 <br /> Mr. Mike Gaffron <br /> Planning Director <br /> City of Orono <br /> Post Office Box 66 <br /> Crystal Bay, MN 55323 <br /> Re: 2525-2535-2545 Shadywood Road <br /> File No. 000139-07000-1 <br /> Plat No. 07-3303 <br /> Dear Mike: <br /> We have reviewed the revised plans for the proposed office park, located at 2525, 2535, 2545 Shadywood <br /> Road, dated June 20, 2007. The plans include constructing 9 office condo units, along with associated <br /> grading and utilities. We have the following comments with regards to engineering matters: <br /> Grading/Drainage/Erosion Control/VUetlands <br /> • An engineered design and details should be provided for all retaining walls greater than 4 feet in <br /> height, or for tiered walls whose horizontal separation is less than two times the height of the <br /> wall, <br /> • Retaining walls should not be located in the side yard easements. <br /> • Plans should be submitted to the Minnehaha Creek Watershed District for review and approval. <br /> • Storm water runoff should be contained to the site. It appears that an increased amount of runoff <br /> will be directed to the neighboring properties to the southeast. <br /> • See attached comments from John Smyth regarding wetlands. <br /> • See attached comments from Dan Murphy and Lance Hoff regarding their storm water review. <br /> Utilities <br /> • Plans should include plan and profile views for all proposed storm sewer, sanitary sewer, and <br /> watermain. In addition, all utility crossings should be identified, <br /> • The connection to the existing sanitary sewer through the installation of a drop manhole should be <br /> in accordance with the detail plate provided. <br /> • Proof of temporary construction easements will be necessary for any work occurring on <br /> neighboring property. Easements will be necessary for the sanitary sewer connection and may be <br /> necessary for the watermain connection on the east side of Shadywood Road, <br /> • The plans should show a sanitary sewer stub for lots 1-3. <br /> • Hennepin County permits will be required for the watermain installation under Shadywood Road. <br /> Any conditions of the permits will need to be followed. <br />