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MEMO Date: April 25, 1994 To: Shelly and Eric Liljequist -via fax Re: Soil Borings From: Mark Gunstad, AIA ~~ McMonigal RECEIVED APR 2 8 1994 CITY OF ORONO We request that you have soil borings completed to determine the soil condiiions, bc:aring capacity a111.i the need for pilings to support the house foundation . We have forwarded two proposals for soil borings and testing to you. It has been our assumption that if pilings were necessary, they would exist to stabilize the foundation and a crawl space could be contained below the floor level. From my conversation with Jeanne Mabusth this morning, it is our understanding that the City of Orono will require that the new structure be raised up on pilings (piers) since the house will sit within the flood plain . In addition, no crawl space will be allowed below the house within the flood plain area. It had been suggested by the Minnehaha Watershed District that volume calculations be completed to determine the amount of fill required to place the house (with a crawl space) within the flood plain and that a compensatory area be excavated elsewhere on the lot. It is our understanding that the Watershed's solution would not be acceptable to the City of Orono and that a variance/conditional use will not be granted unless the new house is completely raised above the flood plain level with no crawl space below. Prior to proceeding with soil borings and testing, we suggest that you confirm the above information with the City of Orono and receive confirmation and their recommendations in writing. Once you receive confumation or an alternate description from the City, we can spend some time researching and estimating the costs associated with a proposed pier foundation system. We would like to act on this as soon as possible as Jeanne Mabusth has suggested that a schematic drawing showing the piling design would be helpful to have as part of your variance/conditional use application scheduled to go before the Planning Commission meeting set for May 16. c. Jeanne Mabusth -City of Orono 93-3/lil4-25-94 125 SE Main Street Suite 345 Minn eap o li s MN 55414-214 3 6 12 33 1 1244 f'AX 612 33 1 10 79 Membe r of Am eri can Institute o f Architect,