|
<br />"Frenkto...n _ P~rk(lr Tri buteries Of Cherry Creek W<'Itershed" and
<br />the "West Cherry Creek .1'I'3tershod". These structunlS were dasigned
<br />lor <'I rural agricultural community with design Iloods having ~
<br />25-year recurrence Interva I. D~ms such ~s these can proyi de a
<br />false sense of security to the araas downstre<'lm, The smell more
<br />frequen'tfloods"recontrolledMakinoitaopeerthe'ttheeree is
<br />not subject to flooding while the large rare flood Is little con-
<br />trol led "nd, during e"treme events, d<'lm t<'lllure may ~dd to the
<br />flooding.
<br />
<br />Flood plain zoning can be an effectlye method for pre-
<br />yentingfuturedamages. To date, flood pl<'lln wning In Arapahoo
<br />~nd Dougl<'ls Counties conforms to requirements imposed by the
<br />err>9rgencyphaseOftheFedorallnsurancoAdministratlon'sFlood
<br />Insurance Progr<'lm In that specl<'l1 flood h<'lZ<'Ird <'Ire<'ls h<'lve been
<br />defined In thu rr\:;)I"O critIcal portions of the counties. i'.ny
<br />Federal releted II nancial lo~ns for buildIng purposes In this
<br />" . d ,,""'C, ,,-, lnsurancoon thoprooerty.
<br />"oo::i <'II ood "aZar area, '.~ vv
<br />
<br />Flood warnlnq and forecastinq - The N<'Itional
<br />Oceanic and i'.tmospheric i'.dminlstr<'ltlon (NOAA), Natlon<'ll Weather
<br />SerYlce, provides no soeclflc flood forecasts lor the upper
<br />Charry Creek area. The National Weather ServIce Forocast Of lice
<br />located at Denyer, Colorado, ho...aver, supplies we~ther foracasts
<br />four times da;ly lor tha area, In addition to the routine fore-
<br />casts and speelal fo~c<'lstsof Seyarestorms, general flaSh
<br />flood warnings are iss~ed on a county-wide basis. Rader observa.
<br />tlon of intense precipitation and projection of storm movement
<br />gives SOmO lead tIme for flash flood warnings; these are promptly
<br />disseminated to <'III news media and locel oHlcials by the best
<br />communications available, Including telephone and teletype.
<br />
<br />FlOOd fiOhtlnq and emerqency evacuation pl<'lns
<br />Thei'.rapahoeCountyandDouglasCountyC;viIDefenseOflices
<br />coordinate disaster actiyltles with the State Ciyl I Defense
<br />Office, They feel that they have adeQuateorganiZ<'Itlon to'n,,,,,t
<br />
<br />dnye_rgency,
<br />
<br />Qther factors and their I~acts - Flood damages ~re
<br />'"' ' .. ''''~.. ~I "c_ ,"",unts ot ru"olf from the
<br />31"0 pass' ~ 0 ,n ,,,a . ," ~ 0 U"
<br />numeroustr;but<'lrles<'lnds",,",11 draiT\ilgewaysllowlnglntoCharry
<br />Creek, Crops, roeds, end farm buildings could recelye some dam-
<br />agelromtheses"""llstrea"'''' ill'thoughthestudyaraa1srela-
<br />tiyely clear 01 urban develooment, such deyelopment has reachod
<br />the Cherry Creak reseryolr araa. SC<'lttorod deYelopments ~re
<br />begInning to bypaSS th~ reservoir area end move farther up the
<br />besin. ThO flcod damagepotent;al in the Cherry Croek b<'lsln can
<br />be reduced by imolementlng I load emergency pl<'lns <'Ind sound flood
<br />pla;n management concepts,
<br />
<br />~aterlal storace on the tlood olain - Floatable
<br />manmade m<'Iterlal stored on the flOOd plain is often washed away
<br />durlngfloods,collectingatpointsdownstream. The flood plein
<br />in the study reach is rel<'ltively claar 01 such materl~ls. When
<br />II~table Objects are stored On the flood pl<'l;n, they should be
<br />secured in somof<'lshion. Otherlloatablematariel,suchas
<br />tr""ls,branchas, brush, and logs, Is In evidence alongChcrry
<br />Creek. This """,torlal could form obstructions to I locdflows,
<br />especially at bridges, Intheeyontol a Ilood,
<br />
<br />"
<br />
<br />"
<br />
|