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<br />W A lTENBERG, COLORADO FLOOD HAZARD MITIGATION PLAN
<br />
<br />AUGUST 1996
<br />
<br />them inaccessible, or one closure is improperly installed.
<br />
<br />For cases involving flood levels of up to two feet, a type of "mini-floodwall" can be used to
<br />permanently protect various types of openings. Possible materials for this use include brick,
<br />concrete block and poured concrete. For flooding around basement doors, a low wall around the
<br />entrance may be the solution. Though the "mini-floodwalls" may not require the degree of
<br />reinforcing that larger flood walls do, they should be supported by and securely tied into a footing
<br />so that they will not by undercut by scouring.
<br />
<br />Sand bagging
<br />
<br />As a last resort or during emergencies, sandbags can keep water away from vulnerable property.
<br />However, floodproofing measures and moving contents out the way are much more secure
<br />methods to accomplish the same goal. Additionally, sandbagging can be very expensive.
<br />
<br />If your community wants to establish a plan for sandbagging, you will have to buy sandbags
<br />before a flood to be sure you have them on hand. Utilize burlap or plastic sandbags, other types
<br />of bags simply won't hold up. Sand and plastic sheeting must also be stockpiled.
<br />
<br />Sandbagging can also be very time consuming. For example, it takes two people approximately
<br />one hour to fill and place 100 sandbags, giving you a wall one foot high and 20 feet long. If you
<br />skimp on the bags, you risk putting up a wall that will be knocked over.
<br />
<br />When a flood is imminent, everyone wants to sandbag, usually because they don't know what
<br />else to do. While it does have a therapeutic effect, sandbagging should be considered only as
<br />part of an overall flood response plan, or as a last resort for individuals. A good flood response
<br />plan will help use your limited time and resources most efficiently. Such an overall plan might
<br />call for sandbags, but only as one flood response element. Permanent floodproofing measures
<br />are much more secure methods to accomplish the same thing.
<br />
<br />~ANDBAGGINq,f~TEPS};{
<br />. '''"i;); .;:~:. ..,:+t,~1f),5t( . if! ;>i" ,v
<br />h Strip the gfPundrof~sod.'GI:ass,;getsslippery whenxwetandvyoiir wallcbuI(tbe;~pusheQ alpllg
<br />>thegroun'dby the weiglihofthe wat~r. ";,;', v'>!;"~ ">"t~'<\,,'. ;; ",<< .. .. 0/
<br />"'H . .. .. ..... . ... .:". .. . ...... .. ..:...", ,... .,,4" .'j;'" ),."i,... .. ......->/. .,,<<3...,
<br />2. Dig a bonding trencWandlay :a~plastic sheyt in~the~tren~h'and'on. t~,eflond'sid~,.,
<br />3.,;FiU Dag;s'halftothre~':quartefs.fuU. Dori't"tie:'.theIll. ..;w'..',i..';?f .<<'.""..,;A .','.. . ..
<br />4. ';StaIt!ngJ!1,th~bondiI1~lr~pch~f~y t9~;bags (j,ii,tbP' ~f;!h~igl~tj~ ,~h~€i.Place,eachbag em tip
<br />.?;ofdle perviqusolle~;s:flap: ' .. , ... ..$1. "~.:i:".,,.f':~;';; . ,'., , ,...
<br />5;" ,Lliy'each Iayer'$,bligsvat'right af1gI~s:t61he;'iayer bel()wit angtarrip tjghtly
<br />"." 'fp. ..... ^~. . ".. ....,..: .... ..\ .........,.:<./..,>.w.;;.I . .....:y. . .i'.. . .x<r,\\:
<br />.6. .. When youieach 'your .flpod'.protection;ley~l"ptiIHhe pla.stic^"'sheet'llp iiilt<;mt ,qf the ",:,allanct
<br />Jioldit dd\Zn with"I,TIotetbags. >.~ ">;, ':,j~y;,';~::~i;;-;': ;'\^';/"$:iw:<?~::, . 'A' "
<br />7. If stwng:cun:e'nt and deorisja~~ expectedtprotec~ you;p1asJ,ic ~he~t from ripping; .,with"another
<br />l~ye'r,ofsan,dbC!gs.:F . . >'A' '>>.,,~ ii' . <Ii;'. /1'''
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