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<br />HISTORY OF FLOODING
<br />
<br />Table 2,
<br />
<br />H1STORrCALF1.00DS (cant'd)
<br />
<br />It appears that Black Ilawk L. typical of many small mounU.ln c""",,unlties
<br />
<br />North Clear Creek, Gr~gory Gulch. Ch""e Gulch
<br />
<br />located along stre""," or gulche.. In Colorado Ln that it cxpedenc,",a almost
<br />
<br />Year
<br />
<br />Date
<br />
<br />Location
<br />
<br />annual flooding duc to very locali~ed Lntense thunder"torma. "ometlmes in
<br />
<br />le~!l
<br />
<br />May 7
<br />
<br />Flume
<br />
<br />combinaUonwLthsno"",,,elt. Becauaeof a lack of recorded informaUon and
<br />
<br />1910
<br />
<br />July 29 & Auguat 4
<br />
<br />CC,NCr.,CG, EG,NG,SG
<br />
<br />the relatively small area of study It i. difficult to determine when
<br />
<br />1%2
<br />
<br />Febrl.1;lry 26
<br />
<br />GG
<br />
<br />floods occurred in the area and whlch floods wcreof a.lgnlficantm agnitude.
<br />
<br />1975
<br />
<br />July8,20,23
<br />
<br />co
<br />
<br />Although there is some variation among .ources in what con.titute. "
<br />
<br />I~ should bc noted that the recorded flood on May 7, 1898 ~a" not due
<br />
<br />flood, documented floods have occurred in 1864, 1881, 1883, 1898, 1910,
<br />
<br />toa thunderstormbl.1t to a "flood from water from the reservoir..hich supplys
<br />
<br />1942, and 1975. High ~ater also apparently occurred in 1887, 1914, 1936, an~
<br />
<br />the mtlls ~hich waa being sluiced out". The water "flooded the flume and two
<br />
<br />1978 whichml8ht be con.idered "s fLoods. Peak flood dlseharlles and st.ages
<br />
<br />IliackHawk\'/orkersdrowned tnthe unexpected torrent".
<br />
<br />a..-eunknown. It i.simportant to note that apparently therehes been no oVer_
<br />
<br />Information re~ardinp, past flnods was glean~d from newspaper acCOcll\ts
<br />
<br />bank flow along North Clear Creek In the ~tudy reach In approximately the
<br />
<br /><Indi.ntervie".wtthseverallongtlmeresidentsofBlaekfiawk. InR"neral,
<br />
<br />last 70 yeara. However, frequent street fl()odingoccurs in Chase and Cr"Hory
<br />
<br />ehe typical effecta of fl~)ding Included washing out of etreets, sidewalks,
<br />
<br />Gulches, largely due In th~ obstruction a previously mentinned.
<br />
<br />culverts a"d flurne.. and sub.tantial mud and debris dcp""ition, of tcnln
<br />
<br />TAble 2:
<br />
<br />llISTORICAI,HCX)l)S
<br />
<br />buildln~ cellars. Less frequently. portl",," of bullding" and their content"
<br />
<br />North Cleer Creek, G~e~ory Gulch, Cha.e Gulch
<br />
<br />were de.troyed or railroad tracks torn up. Several deaths have been cau"ed
<br />
<br />Year Date Locatinn
<br />lRI>4 M~y 2e GG, Nee, EG2
<br />1881 August " GC, EG
<br />1883 ^ugll.t " Nee, ,.Ml;, $(;
<br />
<br />by flo0d~ over th~ years.
<br />
<br />ne .'-lay 29,1804 Central City Mini'r's R"l;lstcr aCcO\1nt of the flood H
<br />
<br />th:lt time noteS that the ld"ho mill ~'nA temoorarilv clMCd duc to dllf1'.a~e',
<br />
<br />that the r(),~d dC'"n Norl.h Cl~,~r Cl",'"k w,"" d~.tr()y~d, that ,.~"ry brid!';t' was flann,
<br />
<br />.~nd .,i) communl~.".ion b"t,,~cn her" and Dcnva ~:l.. cut "ff. n'e deletHlous
<br />
<br />,
<br />
<br />Abbreviations,
<br />
<br />eff"ct. to ~~c c"",-",uni:y ~'"r~ ","dly describcd'
<br />
<br />Nce llorth Clear Cr,,~k
<br />GG Gregory Gulch
<br />CC CIo...8e01.11ch
<br />EC Eureka Gulch
<br />
<br />PM"
<br />"
<br />"
<br />"
<br />
<br />Four Mile Gulch ([K,ry Gukh)
<br />~ilver Creek
<br />~.ev..dd Culch
<br />Spring Gulch
<br />
<br />n
<br />
<br />n
<br />
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