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• Ms. Michele McPherson November 20, 2001 Page Two • Klievers Marsh is designated a natural environmental lake. Therefore, according to the Shoreland Ordinance, all lots within 1,000 feet of the shoreline of Klievers Marsh must be 20,000 square feet minimum size. All lots falling in this area appear to meet or exceed this zoning requirement. • The site is zoned R-1E with a zoning regulation requiring the lots to be 12,000 square feet minimum size with 80 feet of frontage (100 feet for corner lots). All lots appear to meet this zoning requirement. • The City is currently working on plans to reconstruct 175th Avenue. These plans include necessary additional land acquisition to complete the improvements. A condition should be placed on the development of Park Pointe requiring that all necessary right-of-way for 175th Avenue be given as a part of the final plat. B. GRADING PLAN • The grading plan shows a street which is relatively steep accessing the proposed Eagle's Marsh development in the northwestern corner of Park Pointe. This is the development where the Elk River Municipal Utilities is currently constructing a new elevated water tower. This connection point from Park Pointe Addition is an essential part of the transportation plan. This connection will give vehicle trips the . opportunity to exit from this area to the south utilizing 175th Avenue over to TH 10. Without this connection, all traffic north of Park Pointe would be forced to exit along CSAH 12, ultimately ending up at the intersection of Main Street and TH 169, which is fairly congested currently without the addition of new trips. • There are a number of locations on the grading plan where the proposed grading and proposed building site elevations cause either relatively steep driveways or relatively flat driveways. In addition, there is a question as to how the bulk of the rear lots in Block 6 will drain. City staff is currently working with the Developer to rectify these situations. • Generally, the proposed grading plan tries to minimize the grading and therefore the tree loss outside of the right-of-way. There are some locations where additional grading outside of the right-of-way should take place with the mass grading. An example of this would be Lot 6, Block 6, which currently shows no grading outside of the right-of-way of this corner lot. However, the existing grades indicate that the lot is a hole which will require several feet of fill in order to construct a home at the elevation shown on the grading plan. In situations like this, the Developer should correct the lot grade through the mass grading operation. City staff will work with the Developer to rectify these situations also. • Storm drainage calculations have been submitted and are currently being reviewed. We will be prepared to comment in more detail at the Planning Commission public hearing. In general, the concept of the storm drainage that is laid out on the grading plan appears adequate to service the development. There are some issues, though, relative to the high water levels predicted in the storm drainage ponds and the • surrounding properties. For instance, on Lot 10, Block 7, the high water level is shown at 897. This contour would be approximately 10 feet outside of the building Howarc R. Green Com3any Ltr 11-19-01 McPherson.rev CONSULTING ENGINEERS