_REVISION - M1981302 ‎(117)‎

• Permit No: M1981302
• IBM Index Class Name: Revision
• Doc Name: FLOOD HAZARD AREA DELINEATION SOUTH BOULDER CREEK JULY 1986
• Type & Sequence: AM2
• Media Type: D
• Archive: No

FLOODING SOURCE /00 YR. FLOOOPLA/N DATA FLOODW4Y DATA Z
/DENnF/CAT/ON CROSS sTAT/ONI D/ HARGE THALWEG FLOOD FLOAO/OV- FL000war wioTy FLOOOWAY
EEO ELEV. (ms./. ELEV. (m.aZ) wIA FEET LEFT (FEET) RIGHT (FEET) TOTAL (FEET) ELEV. (m.s./.)
STA HIGHWAY 93 PLIT FLOW DAT
Downstream Limit of 20180 0+00 6160 5336.8 5338.4 *** 180 (180) 120 (120) 300 (300) 5338.7 (5338.6)
State Highway 93 20500 6+75 1660 5340.0 5343.7 1120 110 (167) 120 (120) 230 (287) 5344.2 (5344.1)
Split Flow 20910 10+20 1660 5342.0 5344.9 930 70 (70) 70 (70) 140 (140) 5345.4 (5345.2)
21755 13+60 1660 5344.0 5347.0 960 160 (215) 60 (88) 220 (303) 5347.0 (5347.0)
21855 14+70 1660 5346.0 5347.7 1030 160 (160) 100 (100) 260 (260) 5347.7 (5347.8)
21966 15+70 1660 5354 5 5355.5 1180 185 (185) 90 (110) 275 (295) 5356.4 (5356.3)
U.S. Highway 36 22035 22+00 1660 5356:0 5357.7 1030 120 (170) 430 (480) 550 (650) 5358.1 (5353.1)
22505 30+10 1660 5361.0 5363.1 770* 85 (135) 185 (185) 270 (370) 5362.9 (5362.8)
1 23103 37+80 2000 5368.0 5369.4 300* 60 (60) 120 (220) 180 (280) 5370.3 (5369.9)
23735 42+35 2000 5369.0 5375.2 90* 28 (28) 52 (52) 80 (80) 5375.1 (5374.8)
24270 47+93 3000 5375.2 5381.1 170* 32 (32) 44 (44) 76 (76) 5381.8 (5381 .6)
24870 39+60 3960 5383.5 5387.7 460* 40 (40) 156 (234) 196 (274) 5388.1 (5387 .9)
24930 55+80 3960 5386.0 5389.1 510* 30 (39) 193 (295) 223 (334) 5389.6 (5389.3)
25585 60+15 3850 5390.8 5394.7 494 14 (11 ) 260 (410) 274 (421) 5395.5 (5395.1)
1 26330 68+85 3850 5399.6 5403.5 1600 100 (200) 400 (500) 500 (700) 5404.3 (5403.8)
27140 75+00 3850 5406.9 5411.1 1620 198 (198) 350 (380) 548 (640) 5411.3 (5411.2)
27630 80+00 3850 5414.0 5418.0 520 185 (235) 115 (165) 300 (400) 5418.7 (5418.3)
28215 84+45 3850 5419.2 5423.1 775 175 (225) 125 (175) 300 (400) 5423.9 (5423.4)
28795 89+00 3850 5425.2 5429.5 670 220 (270) 230 (280) 450 (550) 5430.1 (5429.6)
29390 93+25 3850 5430.8 5434.5 910 170 (220) 180 (230) 350 (450) 5435.3 (5434.9)
30280 97+40 3850 5436.0 5440.0 525 62 (81) 127 (172) 189 (253) 5440.9 (5440.5)
30930 102+70 3850 5446.0 5448.1 415 186 (231) 10 (10) 196 (241 ) 5448.6 (5448.2)
State Highway 93 10350 103+50 3850 5453.0 5455.1 640 220 (278) 25 (25 ) 245 (303) 5455.6 (5455.3)
10430 104+30 3850 5454.0 5456.3 650 180 (237 ) 50 (50) 230 (287) 5457.2 (5456.8)
31650 110+50 3850 5456.0 5459.1 720 15 (33) 223 (290) 238 (323) 5459.8 (5459.8)
31850 115+40 3850 5460.0 5461.8 890 121 (178) 95 (175) 216 (353) 5462.7 (5462.3)
32210 118+00 3850 5464.0 5466.3 1100* 50 (51 ) 145 (225) 195 (276) 5466.8 (5466.6)
Upstream Limit of 32475 120+75 1300 5466.0 5470.3 590* 15 (15) 198 (246) 213 (260) 5470.2 (5470.0)
State Highway 93 32980 125+65 5740 5469.3 5475.9 *** *** *** *** ***
Split Flow
1 Stationing from mouth (feet)
2 Floodway data in parenthesis ( ) represent floodway based on 0.5 ft rise in Energy Grade Line (EGL)- all other floodway data pertains to encroachment
for 1 foot rise in EGL - widths reletive to channel centerline looking downstream.
• Floodplain extends beyond limits of mapping, distance measured to end of mapping.
* Distance measured to split flow boundary/limits.
*** Limit of S.H. 93 split profile - see main channel data for floodplain/floodway information.
' GREENHORNE and O'MARA, INC. URBAN DRAINAGE AND FLOOD CONTROL DISTRICT 100-YEAR FLOODPLAIN AND FLOODWAY
Engineers • Architects • Planners • surveyors • Phologrornmehists BOULDER COUNTY
. REFERENCE DATA TABLE
1325ewsrmaft &mMaa-swn40e•Dnnwr,calmdo00222•(303)7ee4e2a0 SOUTH BOULDER CREEK Mont.)
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