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foundation analysis shall consider piles in column <br />action, where appropriate, from the bottom of the support <br />or <br />structure to the design grade. <br />(d) Consideration shall also be given to the degree of <br />exposure to wave attack and the resulting impact loads on <br />lateral or diagonal bracing between piles. <br />monolitnic iounaaLions may De permiLLea in ieaeral emergency <br />management agency flood insurance rate map "A" or "B" zones. <br />(a) Monolithic foundations may be used if soil conditions <br />permit and if located at an elevation which minimizes <br />their f f ect-on the -be pert es <br />consideration shall be given to their vulnerability to <br />erosion under design storm conditions. <br />the event that a monolithi-c foundation is--used-,--t <br />design scour depth (see Chapter 5.28, Shore Protection <br />Manual, U.S. Corps of Engineers, 4th Edition, 1984) <br />unless positive methods are provided to prevent scour. <br />(4) Understructures. No substantial walls or partitions shall be <br />constructed below the level of the first finished floor. This <br />does not preclude the construction of: <br />(a) Stairways; <br />(b)Shearwalls essentially perpendicular to breaking waves; <br />(c) Shearwalls essentially parallel to breaking waves which <br />do not -meed a maximum f 20 per -the building <br />(d) Wind or sand screens constructed of fabric or wire mesh; <br />(e) Light open lattice partitions with individual wooden <br />lattice strips no greater than 3/4 inches thick or 3 <br />inches wide; <br />(f) Elevator shafts; <br />(g) Breakaway or frangible building walls; or <br />(h) Substantial building walls constructed above the wave <br />action and storm surge expected under design storm <br />conditions. <br />6 <br />SmeadSoft Reprint Date: Tuesday, August 20, 2013 - 12:05:37 - OfficialDocuments:611, Attachment Id 0, Page 8 <br />