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<br />"Franktown_ParkorTrlbu+to..lesofChe..ryC..aekWatershed"and
<br />the "tlest Cl>e"ry C..eekWatorshed", Tl>esestructureswe..edeslgned
<br />for a ..ural ag..icultural community with design floodS having a
<br />25.yoa....ecurranceinte..val, Dams suCh as these can p..ovidea
<br />false sensa of security to the areaS do.mstream. The small mora
<br />frequantfloods a..econt..ollodrnaklngltappea..thatthea..eaIs
<br />notsubjecttofloodlng...hilethe IIIrgorareflood Is little con-
<br />trolledand,duringextremeevents,d"",failurernaYllddtothe
<br />flooding,
<br />
<br />Flood plain zoning can be an offective method fO" pre-
<br />venting future damages. To date, flood plain zoning In A..apahoo
<br />, db th
<br />and DouglasCountiesconfo.."'s torequlrernonts Impose y e
<br />omorgencYPhllseoftheFedorallnsuranceAdmlnistratlon'sFlood
<br />Insurance Program In tl>"t special flood hazard areas I>avo boen
<br />defined In the moro critical portions of tne counties, Any
<br />I . I ,~,-, <nr ~"lldln9 ,urposes In thl s
<br />Foderal related f nanc.a ~cr,,~ 'v ~~
<br />< " ~ -"'I', fl~~ lnsurll"ce "" the property.
<br />spec I al ,Iood "aZar" "rea , .,~ , ~v
<br />
<br />FlOOd ...arninq and forecastlnq - The National
<br />Oceanic and Atmospheric Administration (NOAA), National Weather
<br />Service, provides no specific flOOd forecasts for the upper
<br />Cherry Creek araa, The National Weather Servico Forecast Office
<br />located at Denver, Colorado, however, supplies weathe.. forecasts
<br />four times dally for the area. Inadditlontotheroutinefore-
<br />c~sts and special forec~sts of SeVere storms, general f I~sh
<br />flood ...arnlngs are issued on a county-...ide basis. Radar observa-
<br />tlonof intense precipItation and projection of stormmvemant
<br />gIves Some lead time for flaSh flood warnings; these are promptly
<br />disseminated to all ne...s madia and local officials by the best
<br />communications available, Includingtelllphonoandteletype,
<br />
<br />Flood flohting and omerqency evacu~tlon plans
<br />The Arapahoe County and Douglas County Civil Defense Offices
<br />coordinate disaster activities with the State Civil Oefense
<br />Office. Thoy feel th"t they have adequate organization to meet
<br />anyamargoncy.
<br />
<br />Othar factor 5 and thei r impacts - ~ lood dJ~agQ~ ~re
<br />also possible In the event of large amounts of runoff from the
<br />numeroustrlbutarlesa"dSM4lldrainagewaysflowlnglntoCherry
<br />Creek. Crops, roads, and farm buildings could receive some dam-
<br />I I , -, ^I"-"gh the studv area is rela-
<br />ago from these sma s rea,,,, ". ''''~ ,
<br />tively clear of urban development, such development has reached
<br />the Cherry Creek reservoir area. Scattered devalopments "re
<br />beginning to bypass the reservoir area and move f"rther up the
<br />basin. The flood damage potential In the Chorry C..eok basin can
<br />be roduced by Implementing flood emergency plans and sound flood
<br />Plain management concepts,
<br />
<br />Matorlalsto..a!'leonthefloodplain-Floatable
<br />manmade material sto..ed on the flood plain is often ...ashed a...ay
<br />during floods, collecting at ~Ints downst..eam, The flood plain
<br />In the study reach is rel~tlvely clear of Such materlJls. When
<br />f.loatable objects are stored on the flood plain, they should be
<br />sllcured in Same fashion, Othor floatable material, such as
<br />trOOS,branChes,brush,and logs. ;slnevidencealonoCnerrv
<br />Creek, This material could form obstructions to floodflows,
<br />especially af bridges, in the event of a f 10<>:1 ,
<br />
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