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�4 � �-��: ,o: ,� :MAiiSVNiMACDONALD :s+2 az� oeos u 2. a <br /> , v <br /> . . � <br /> MATTSON/MACDONALD INC. � <br /> STFIUCTUAAL ENOINEEiiS ' <br /> 1 S'I 6 W. LAKE STREET <br /> MINNEAPOLIS. MINNESOTA.55408 (612) 627-7825 • <br /> 14 November, 2000 <br /> Alex Meyer,Landscape Architect . <br /> Hennepin Parks �� . <br /> 12615 CouMy Road 9 <br /> Piymouth, MN 55441-i 299 <br /> Re: New Door Openings � <br /> Noerenberg Gardens-Carriage House . <br /> Mr.Meyer. � - . <br /> As you requested, 1 have reviewed the header sizes nec�aary to provide two new 8'aNide garage <br /> doors and one new 6'wide service door. It is also my understanding th�t}r.ou wish to relocate the <br /> east interior pa�tition wall. .This is a non-load bearing wa11 and may be relocated as necessary. <br /> I observed the direation of existing raof frami�g�d���e condiaon�of the rnrerall � <br /> structural sy�tam. I have not periormed c�Iculatior�s to d�ermi�e the capacity of the�c�ting roof, <br /> concrete slab,concrete columns,headers,walls,foundations,orfooii�gs.. <br /> The north foundaCion wall appears to have setded ar�d the notthw�est oomer shifted. The ir�terior <br /> � slab on.grade at the northwest comer has settled�r�e than a foot, gased on infoRnation <br /> provided by.the park superirrtendeM,the foundadon and siab have been in this condi�on.for more <br /> than iwenty years. The brick chimney at the north east comer haa settled in the bwerlevel. tt <br /> does not�appear that tf�e concrete slab o�co�umns have setflad. . � <br /> The problems at�he northwest com�(w[�e�9�e����m�y�due to fnost penetratiorl <br /> under the footings and slab since the space is�nhe�ed The slab setdement may�also be�due to <br /> water flow beneath the slab. In either case� I recomme�monito�ing the•exieting foundation <br /> movement. I atso recommend veMying the exisbng foo��g depth, The 9�e may be raiaed <br /> along the north side of the building to increase protection agsinst fros�if required. Higher grade <br /> would also reduce the foundabon shifting: Grade oould be rai�ed.as high as the basemeM slab <br /> on grade. I further recommend tudc�poin�ng crac�cs in the foundation and chimney. <br /> �The problems noted above are not affect�by the new wor[c. <br /> Please call me ff you have any questions conceming the above.. <br /> Sincerely, <br /> Mattson/Macdonald, Inc, <br /> ��� /"u/ <br /> �� <br /> David P.Wagner, P.E. <br /> MN Reg. No.25420 <br /> A��1 <br />