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<br />FLOODING SOURCE FLOOD PLAIN DATA FLOODWAY DATAlll
<br /> CROSS STATION QIOO STREAM 100YR. 100YR. 100 YR. FLOODWAY WIDTH (FT)121 FLOODWAY
<br />IDENTIFICATION BED REV. FLOOD ELEV ELEV.
<br /> SECTION (FT) (CFS) (MsLl (MSL) WIDTH (FT) R. BANK L. BANK TOTAL (MSL)
<br />AT CHECK DAM 61 108 + 35 1009 5,701.5 5,703.9 170
<br /> 62 110 + 00 1009 5,704.8 5,707.0 382
<br /> 63 112 + 00 1009 5,704.4 5,709.0 255
<br /> 64 114 + 00 1009 5,706.8 5,710.7 55
<br /> 65 116 + 00 1009 5,708.2 5,713.2 33
<br /> 66 118 + 00 1009 5,711.6 5,716.3 62
<br /> 67 120 + 00 1009 5,717.7 5,721. 7 59
<br /> 88 122 + 35 1009 5,725.2 5,728.0 207
<br /> 89 124 + 00 1009 5,731.8 5,733.0 238
<br /> 70 126 + 40 1009 5,735,0 5,737.3 210
<br />WiSTRIDGE ARTERIAL - BEGIN 31 56 + 00 1889 5,829.3 5,632.6 110
<br />BACKWATER CONDITION 32 80 + 70 1889 5,631.0 5,635.6 88
<br />RlGIONAL DETENTION FACILITY 33 61 + 00 1889 5,636.0 5,640.0 200
<br /> 34 63 + 20 1889 6,634.0 6,641. 5 189
<br /> 35 65 + 00 1889 5,836.2 5,641.3 62
<br /> 36 67 + 00 1889 5,640.0 5,645.1 142
<br /> 37 68 + 00 1889 5,645.6 5,647.4 195
<br /> 38 70 + 00 1889 5,648.4 5,650.2 261
<br />UPSTREAM LIMIT OF BACKWATER 39 71 + 00 1648 5,648.4 5,651.2 226
<br />EFFECTS DUE TO CULVERT AT 40 73 + 00 1648 5,649.6 5,653.2 193
<br />STATION 58 + 00 41 74 + 00 1648 5,651.8 5,654.4 212
<br />
<br />(1) FLooDWAY DATA ARE BASED ON ENCROACHMENT CAUSING UP TO 0.5 FT. VERTICAL RISE IN THE 100 YEAR
<br />FLOOD ELEVATION. WHERE FLooDWAY DATA ARE NOT GIVEN, THE FLooDWAY SHALL BE ASSUMED EQUAL TO THE
<br />FLOOD PLAIN. '
<br />
<br />(2) LEFT AND RIGHT DISTANCES ARE MEASURED FROM CHANNEL REFERENCE LINE LOOKING UPSTREAM.
<br />
<br />Jack G.lbub CompQny
<br />Engi~l1ng & PloMlng
<br />..,.,__""-_-.......-_.~0011.
<br />(JOJ)""~
<br />
<br />URBAN DRAINAGE AND FLOOD CONTROL DISTRICT
<br />FLOOD HAZARD AREA DELINEATION-
<br />DOUGLAS COUNTY
<br />
<br />TABLE 3
<br />PAGE 3
<br />
<br />FLOOD PLAIN AND FLOODWAY REFERENCE DATA
<br />SPRING GULCH
<br />
<br />...._ - _____,',.,_u.
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