FLOOD05827

• County: Boulder
• Community: Boulder
• Stream Name: Boulder Creek
• Basin: South Platte
• Title: Boulder Creek Phase B
• Date: 12/1/1979
• Prepared For: Boulder
• Prepared By: UDFCD
• Floodplain - Doc Type: Floodplain Report/Masterplan

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BOULDER CREEK I
Ql00-YR ~ 12,000 cfs I
URS NO. 7142
TABLE VI-2 FLOW CHARACTERISTICS OF SELECTED ALTERNATIVE I
INVERT COMPUTED I
ELEVATI ON WATER ENERGY CROSS- HYORAULI C CRITICAL FROUDE NO
(FT ABOVE SURFACE GRAOELI NE D. TOP EXPANSION/ MAXIMUM SECTIONAL AVERAGE DEPTH VELOC ITY V-AI/F
CROSS-SECTION tJX MEAN SEA ELEVATION, ELEVATION, TOP WIDTH WIDTH CONTRACTION VELOC ITY AREA, A VELOCITY AfT Vg AlT (gAIT) !
STATION. (FEET) LE VE L) (CWSEL) ( EGL) (FEET) (FEET) RATIO (FEET/SEC) (FEET2 ) (FEET/SEC) (FEET) (FEET/SEC) I
175 - 55 -0.3l
l288+45 5341.6 5354.45 5356.04 145 lO.8 ll99 lO.Ol 8.21 l6.26 0.62
115 - 19 -0.17 I
1289+24 5342.0 5355.81 5356. 75 l26 7.8 1544 7.77 12.25 19.86 0.39
lO -0.1
1289+34 5342.5 5355.73 5356.86 l25 8.5 l408 8.52 l1. 26 19.04 0.45 I
52 0 0
1289+86 5345.20 5355.35 5357.48 l25 l1.7 l023 ll.73 8. l8 16.23 0.72
lO 1.0 O. 1 I
l289+96 5345.8 5356.19 5357.71 126 9.9 l2l2 9.90 9.62 17.60 0.56
l64 122 0.74
1291+60 5346.5 5357.2 5358.82 248 l1.0 1308 9.17 5.27 l3.03 0.70
75 127 1.69 I
l292+35 5347.5 5359.17 5359.46 375 3.6 2902 4. l4 7.74 15.79 0.26
80 - 54 0.68
l293+l5 5347.4 5359.24 5359.74 321 6.5 2172 5.52 6.77 l4.76 0.37 I
385 -125 -0.32
l296+75 5352.0 5360.65 5362.l9 196 10.0 1205 9.96 6. l5 14.07 0.7l
85 - l4 -0..16 I
l297+60 5352.5 5361. 4 5363.8 182 12.5 974 12.32 5.35 l3.13 0.94
85 - 25 -0.29
l298+45 5353.00 5362.58 5365.55 157 l4.7 934 l2.85 5.95 13.84 0.93
85 5 0.06 I
l299+30 5353.8 5364.93 5366.75 162 10.9 lll9 10.72 6.9l 14.91 0.72
90 - 19 -0.21
1300+20 5354.2 5365.86 5367.5l 143 l1.2 l23l 9.75 8.61 l6.65 0.59 I
62 - 24 -0.39
l300+82 5354.70 5366.l4 5368.05 ll9 11. 1 l084 11.07 9.11 17.13 0.65
10 - 8 -0.8
1300+92 5355.2 5366.13 5368. l6 III l1.4 l049 ll.44 9.45 l7.44 0.65 I
36 - 3 -0.08
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56 I
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