FLOOD01407

• Designation Number: 301
• County: Arapahoe
• Community: Unincorporated Arapahoe County
• Stream Name: Piney Creek Tributaries
• Title: Flood Hazard Area Delineation - Piney Creek Tributaries
• Date: 4/1/1989
• Designation Date: 7/1/1989
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Table 7 (Continued)
FLOODPLAIN AND FlOODWAY REFERENCE DATA: ANTElOPE CREEK
Cross
Section Thalweg 10- Yea r 50- Yea r 100-Year Floodplain Data Floodway Oa ta
Number Sta ti on Elev. Oi scha rge Elev. Oi scharge Elev. Discharge El ev. Vel. Width Elev. Vel. Floodway Width (1)
(cfs) (cfs) (cfs) ( fps) (ft) ( fps) Left Rlght Total
19190 191+90 6063.8 200 6064.8 490 6065.2 650 6065.3 4.4 273 6065.4 5.1 134 24 158
19240 192+40 6064.4(3) 200 6065.6 490 6065.9 650 6066.0 4.1 186 6066.2 3.5 266 -80 186
19345 193+45 6066.0 200 6068 .5 490 6068.8 650 6068.8 0.8 315 6068.8 7.8 195 120 315
19410 194+10 6070.0 200 6071.1 490 6071.4 650 6071.5 3.2 244 6071. 6 3.2 80 164 244
19470 194+70 6072.0"' 200 6073.7 490 6073.7 650 6073.7 1.8 245 6074.0 3.1 155 90 245
19650 196350 6073.5 200 6081.0 490 6081.4 650 6081.6 5.7 114 6081.6 5.8 339 -225 114
19690 196+90 6084.0(3) 200 6084.9 490 6085.3 650 6085.5 5.6 121 6085.5 5.7 251 -130 121
19755 197 +55 6086.0 200 6086.2 490 6086.5 650 6086.6 2.7 430 6086.6 2.7 227 203 430
20030 200+30 6086.0 200 6086.9 490 6087.2 650 6087.4 2.3 238 6087.4 2.6 109 74 183
20415 204+15 6086.5 200 6089.3 490 6090.6 650 6090.9 7.8 228 6090.9 7.9 12 44 56
20520 205 +20 6090.5 200 6098.8 490 6101.2 650 6101.5 1.0 209 6101.5 1.1 115 48 163
21095 210+95 6097.4 200 6099.5 490 6100.8 650 6101.2 9.0 29 6101.2 9.1 16 13 29

(1) Looking downstream, as measured in feet from centerl ine of channel.
(2) 100-year floodplain confined to channel. No Floodway defined.
(3) Spillway elevation of existing pond embankment.
(4) Includes shallow flooding area.

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