Loading...
HomeMy WebLinkAboutRe: proposed garage 2335 Highway 36 W St.Paul,MN 55113 Te1651-636 4600 Fax651-636-1311 www.bonestroo.com February 11, 2010 � Bonestroo Melanie Curtis Planning and Zoning Coordinator City of Orono Post Office Box 66 Crystal Bay, MN 55323 Re: 2180 North Shore Drive File No. 000139-10000-1 File No. 10-3442 Dear Melanie: We have reviewed the plans for a proposed garage at 2180 North Shore Drive. The plans are dated 2-3-10. We have the following comments with regards to engineering matters: • Most of the garage and a portion of the driveway are being placed over an area with existing hard cover. The slight increase in hard cover will generate a negligible increase in stormwater runoff to the north. • It appears that a required stormwater pond was never constructed with the 2006 or 2007 building addition and parking lot expansion project. We recommend that the construction of the approved pond be required regardless of the garage project proceeding. • This project will disturb more than 100 CY of material. Sediment and erosion control information meeting the requirements of Orono's City Code 79-7(c)(2) must be submitted. The minimum $2000 sediment and erosion control financial security should be required of the owner for this permit. If you have any questions, please call me at(651) 604-4894 or send an email to darren.amundsenCa�bonestroo.com. Yours very truly, �� ��____, Darren Amundsen Cc: Tom Kellogg 2335 Highway 36 W St.Paul,MN 55113 Tei651-636-4600 Fax 651-636-1311 www.bonestroo.com February 17, 2010 �Bonestroo Melanie Curtis Planning and Zoning Coordinator City of Orono Post Office Box 66 Crystal Bay, MN 55323 Re: 2180 North Shore Drive File No. 000139-10000-1 File No. 10-3442 Dear Melanie: We have reviewed the plans for a proposed garage and grading at 2180 North Shore Drive. The grading plan is dated 2-12-10 and the landscape plan is dated 2-10-10. We have the following comments with regards to engineering matters: • Most of the garage and a portion of the driveway are being placed over an area with existing hard cover. This slight increase in hard cover will generate a negligible increase in stormwater runoff to the north. • The landscape plan and grading plan do not fully match each other. The landscaping plan shows paver patios, rock paths, and the removal of existing sidewalks. The final plans should match and appropriate items need to be included in hardcover calculations. • A required stormwater pond was never constructed with the 2006 or 2007 building addition and parking lot expansion project. The current plan shows a pond in the northwest corner of the property. Pre and post construction stormwater calculations should be submitted showing runoff rates not increasing for the 2, 10, and 100 year storm events. In this case, the pre-construction conditions should date to before the previous (2006-2007) building addition and parking lot improvements. The post construction conditions should be the currently proposed plan. • This project will disturb more than 100 CY of material. Sediment and erosion control information meeting the requirements of Orono's City Code 79-7(c)(2) must be submitted. The minimum $2000 sediment and erosion control financial security should be required of the owner for this permit. If you have any questions, please call me at(651) 604-4894 or send an email to darren.amundsenCa�bonestroo.com. Yours very truly, �_.� � ---� Darren Amundsen Cc: Tom Kellogg