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b. The bottom of all openings shall be no higher than one foot above grade. <br />e . _, Openings may be equipped with screens, louvers, or other coverings or devices provided <br />that they permit the automatic entry and exit of floodwaters. <br />r:,cj.-i\ g-a!,qgs ft-1ilbedip-a rest-de-n-Uai.:-!r,u<,!!re, ca0:1ru!te-!j lyllh.t-he-gaLdge-liqq .riab freiow <br />tlre Bf I rnust be c.jesrqned 1qaLl-qw lqr tlte E!to,nlall( ellIry nn-d extt alllp-aslwat-et:, <br />tl,g. Because of hydrodynamic loads, below grade crawlspace construction is not permitted in <br />areas with flood velocities greater than 5 feet per second unless the design is approved by <br />a registered architect or licensed engineer. <br />3. Any interior or exterior building utility systems must be elevated one-foot or more above the <br />Base Flood Elevation (BFE) wr,l-Lr t]-re ex!e+!iCI-n-a{ -LttLltlyi-neiss-al'd egulptuer{ ,s-pesrtillll"y <br />fBglgl iflf-c-l*tl]S, N.f lP er irc eleslt1r+€r{ 56 rhalfkrcdwat€rs €,.x}rx}l-enter s+ at'er*,*ulate wilbiri the <br />s)A;t€rfl €{}nlp€fientl rlurl++g floeel eond+tir+rx;-St++we+l<;-in-pa*ic**knl*u:t$e-kx*ted abeve the <br />tlFE <x sealet* to prevet*.the e*rlr,y of fioodwat++*. <br />4, Poftions of buildings below the BFE must be constructed using methods and practices that <br />minimize flood damages, and with materials resistant to flood damage. This includes any joists, <br />pony walls, beams, posts, insulation, wall coverings, wall sheathing or other materials that <br />extend below the BFE. <br />5. The elevation of the interior crawlspace grade (inside of the foundation walls in crawlspace <br />construction) must be at or above the lowest elevation of the exterior grade. Below-grade <br />crawlspace foundations will be allowed only if all of the following conditions are met, in addition <br />to the minimum criteria set forth above in this subsection: (buildings thot hove below-grode <br />crawlspoces moy have higher flood insuronce premiums thon buildings that have the preferred <br />crowlspoce construction, with the interior elevotion of or obove the lowest adjacent exterior grode). <br />a. The interior grade of the crawlspace (below the BFE) must not be more than 2 feet below <br />the lowest adjacent exterior grade. <br />b. The height of the below-grade crawlspace, measured from the interior grade of the <br />crawlspace to the top of the crawlspace foundation wall must not exceed 4 feet at any <br />point. <br />c. _There must be an adequate drainage system that removes floodwaters from the interior of <br />the crawlspace. Possible options include natural drainage through porous, well drained <br />soils and drainage systems such as perforated pipes, drainage tiles, gravel or crushed stone <br />drainage by gravity, or mechanical means. <br />t;..c!._the -ue,!-rlertypjjlqpS-uua_te: i "nl,_the lrte:Iou]d*nsl _exs_esd-lLv-eJ5l fe.el pef secald-lar.any <br />eiawjspese, <br />6. Garages attached to a residential structure must have the floor elevated above the BFE or be <br />constructed according to the following conditions: <br />a. The walls must have openings designed to automatically equalize hydrostatic and <br />hydrodynamic flood forces by allowing for the entry and exit of floodwaters. (See the <br />requirements listed above for the residential structure per 14.08.250). <br />b. All portions of the garage below the BFE must be constructed with materials resistant to <br />flood damage. This includes any studs, walls, beams, posts, insulation, wall coverings, wall <br />sheathing or other materials that extend below the BFE. <br />S**Any utility systems within the garage must be elevated one foot or more above the Base <br />Flood Elevation (BFE) wj$ t[e- exsc&!p-!-of -$illyrrcleI5-8l]d ,e.glup,lle-LU-:pesifieal1y <br />clesiorred to withstarrd inunclation accordirtq to tlre stattdards of the lnternatignal