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does not exist, or where the path of flooding is unpredictable and where velocity flow may be
<br />evident. Such flooding is usually characterized as sheet flow. ln these areas, the following provisions
<br />apply:
<br />I NeWconstruction .,irr,. lsubstantial improvements, .,rr, j r,(i,rr:.liir.l.riri r.Jrir.'ir.r:Lrlrr,ir:iili,r:i ri,:i;r,rr.ii
<br />of residentialstructures and manufactured homes within AO Zones
<br />ir shall have the lowest floor (including basemerts .rrrii rlr1,.:,,i 11111i,,,.ri 1i.1.ri!1 ;!ii*1i) elevated
<br />above the highest grade adjacent to the building, one foot or more above the depth
<br />number specified in feet on the FIRM (at least two feet above the highest adjacent grade to
<br />the structure if no depth number is specified).
<br />.1i i\il\';r,lilt,,r l,r.,.irlr\j, l!|,|ii,.i,,...1, :. irl.."l r:i r'i|Vrrlr-ri\Jrri it:(!1,,1 tli,,ri'.ri,'1r
<br />,r.ll/t.i'i]i{lrir(lr'lriirt.:,ltirrl\r, ',\,\r:ii.lrl,t,ill}j l'.11ir'-llt.tl1ii,,,rjrl:tr r'1t'1tt:rv;'r;i.rl,1ii
<br />:llirlitil-,:ii;rj i:ri.ir;tiliili::'ill .:i;iti.rlti.;!ir,,,: .,t!' .' .. ,.,'ilr.L,rriil !ni,ttij':tlittlr.i(Li.lrillil(j il tli{.
<br />:)i..ittLirjri,l1 ili illil ltrir:itr{iiir.1lr,ri rii::.rtllr;ili.,:i i.-'tji:: .ltr.i iiru l.li li".
<br />2. New construction and substantial improvements of nonresidential structures within AO Zones
<br />shall either:
<br />a. Have the lowest floor (including basement) elevated above the highest adjacent grade of
<br />the building site, one foot or more above the depth number specified on the FIRM (at least
<br />two feet if no depth number is specified); or
<br />b. Together with attendant utility and sanitary facilities, be completely flood-proofed to or
<br />above that level so that any space below that level is watertight with walls substantially
<br />impermeable to the passage of water and with structural components having the capability
<br />of resisting hydrostatic and hydrodynamic loads and effects of buoyancy. lf this method is
<br />used, compliance shall be certified by a registered professional engineer or architect as
<br />in KCC 14.08.270(3).
<br />i Require adequate drainage paths around structures on slopes to guide floodwaters around and
<br />away from proposed structures.
<br />lr,i': uilllit:::.1!r: ii.'r iilyq.r lli{r: ili{li.Lrt i',i'r liii\ii.r 'ilii'11.. !..1i
<br />lltt :jir r;rrl]/- 1,U tii,lr L rjtr, r,r,r,i r i iyl,rr r't iirrr':,,.r1,{l ri:,tt:ti,y,it'vl,.t 5 ,ill|.j lrrr" ilr.,
<br />iJl' i I i I cl i ] t- I r i i y' .r i i rr r- I r i.ir !i iri ( i {l-l i i I j r !-.,, i i i
<br />tll.rtr i l;li.itlr€rri l tltt ii'r, { rir,rr iii.tt i i ;i ijll i iti ti,r ;.
<br />(Ord. 2014-015, 2014; Ord.2009-25,2009; Ord. 200'l-03; Ord.93-18 $ 5,5, 1993. Formerly 14,08.320)
<br />14.08.315 Standards for filling, grading in floodplain.
<br />Filling, grading or other activity that would reduce the effective storage volume shall be mitigated by
<br />creating compensatory storage on-site, or off-site if legal arrangements can be made, to assure that
<br />the effective compensatory storage volume will be preserved over time; provided, however, that no
<br />increased upstream or downstream flood hazard shall be created by any fill authorized in the
<br />floodplain by this chapter or other applicable chapters. (Ord. 201-!--013 2011)
<br />14.08.320 Standards for AE and A1-30 Zones with Base Flood Elevations but No Floodways.
<br />ln areas with base flood elevations (but a regulatory flood way has not been designated), no new
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