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� <br /> � � OCT-15-2002 17�34 ROCHON CORPORATION 763 559 8101 P.02/02 <br /> � 3 gov s�o�c.�...a ,o,c_ - <br /> u��e <br /> �■■ <br /> ���s��Qh <br /> Haer.o�Pipe i Products. 9nc. <br /> OCtObE� 14, 2002 Na one panerate AAidwest�In,. <br /> P.O.Box 1380 <br /> Ma{�e Grova,MN 55311 <br /> Phone 763 425 5555 <br /> FaK 763 4251277 <br /> Mr. Jeff Wellman <br /> Rochon Corporetion <br /> 3650 Annapolis Lane North <br /> Su'�te 101 <br /> Plymouth, MN 55447 <br /> Re: Orono Salt Storage Building <br /> Hanson Spancrete Mid+�e�t Project#13438 <br /> Desr Sir: <br /> Per your rEquest, we have reviewed our design calculations for tl�e roof inembers that we will be <br /> supplying for the above named project. We understend that the alope cf the roof inembeB for <br /> drainage purposes will be 1/e" per foot rather than %" per foo� C1ur calculations indir.�te that <br /> the p�cast planks will likely have some upward camber��er all �aermanent roof Ivads are in <br /> place. This should aid drainage. In addition, the pieces h�.tve caE�aaty in exoess o�F what is <br /> required to serppo[t the spec'�fied design loads. Hanson ;;cpanc�:te Midwest has done <br /> numerous projects with slopes of 1/8" pe�foot or less that have performed adequatdy. <br /> Please call if you have further questions regarding this sltua�on, <br /> �, <br /> Sincerely,i' � � <br /> � , .��� ,:- <br /> l.� . -� <br /> � .� � � �,.. <br /> � <br /> Wayne . Pyatt <br /> Project Engineer <br /> Cc: Rick Nash <br /> Steve Kaas <br /> Rick Ostgard <br /> Job File <br />