Laserfiche WebLink
2335 West Highway 3G ■ St. Paul, MN 55113 <br /> Bonestroo <br /> ' Rosene Office: 651-63G-4G00 ■ Fax: 651-G36-1311 <br /> � Anderiil<& www.bonestroo.com <br /> Associates <br /> Engineers&Architects �������� <br /> July 12,zoos JUL 1 5 Z005 <br /> Ms. Melanie Curlis <br /> p(�nner CITY OF fJRONC► <br /> City of Orono <br /> Post Office Box 66 <br /> Crystal Bay,MN 55323 <br /> Re: 3165 Norlh Shore Drive <br /> File No. 000139-05000-0 <br /> Plat No. OS-3135 <br /> Dear Melanie: <br /> We have reviewed the site plans dated June 30,2005 for the proposed improvements to 3165 North Shore Drive.The site <br /> iinprovements include the construction of a new home and associated grading. We have the following comments with <br /> regards to engineering matters: <br /> • The grading plan shows a proposed swale west of the home that drains southerly onto the neighboring property. <br /> The grading plan should be revised so this swale contains water on the subject property. <br /> • The proposed driveways are shown at the maximum allowed grade of 10%. If this project goes forward care <br /> should be taken when constructing the driveways so as not to exceed the ]0%grades shown. <br /> • The proposed retaining walls along the driveway to the garage exceed 11-feet in height and will require a <br /> separate engineered design and detail submittal for review and approval. <br /> • The estimated fill required to construct this project is 1350 cubic yards.Tlus equates to approximately 130 truck <br /> loads of material that will be imported to the site over the existing shared driveway. There should be some <br /> agreement in p]ace between alt users of the driveway prior to work on the site that identifies who is responsiUle <br /> for any damages caused by this home construction. <br /> • The proposed stonn sewer system raises several concerns.The stonn sewer shown to serve the driveway to the <br /> garage will likely be problematic in larger rain events or when the inlets clog.It is likely the garage could flood <br /> as there is no emergency overflow for storm water that cannot enter the stonn sewer system. The proposed <br /> stonn sewer shown east of the home discharges directly to the lake. This is not acceptable and an alternative <br /> design should be incorparated into the plan set that routes water towards the]ake overland and not through a <br /> - pipe to enha�ce water quality. <br /> • It is unclear if the existing bituminous driveway shown along the norlh iot line will remain or will be removed.lt <br /> appears tliat the access to the home will be across the shared driveway to tlie north and if so the existing <br /> driveway sl�ould be removed to minimize hardcover on this site. <br /> • [t appears there m1y be a sanilary sewer manhole located near the northeast corner of the property. The city <br /> should verify the manhole location and easement status.The manhole should be shown on the grading plan and <br /> an easement provided over it if the manhole is on the subject property and no easement exists. <br /> If you have any questions please call me at(651)604-4863. <br /> Yours very truly, <br /> BONESTROO,ROS�NE,AND�RL[K&ASSOCIATES,INC. <br /> � � <br /> � Tom Kellogg <br /> Cc: Greg Gappa,City of Orono <br /> St. Paul, St. Cloud, Rochester, MN • Milw�ul<ee, WI • Chicago, IL <br /> � Affirmative Action/Equai Opporfunity Employer and Employee Owned <br />