FLOOD09515

• Designation Number: 122
• County: Adams
• County: Arapahoe
• County: Douglas
• Community: Denver Metro Region
• Stream Name: Dutch, Coon Creeks, Lilley Gulch and Three Lakes
• Basin: South Platte
• Title: FHAD - Dutch Creek, Coon Creek, Lilley Gulch, and Three Lakes Tributary, Jefferson & Arapahoe Counties, Columbine Valley & Denver, CO
• Date: 5/1/1978
• Designation Date: 11/1/1978
• Floodplain - Doc Type: Floodplain Report/Masterplan

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TABLE C-I

FLOOD PLA I N

AND FLOODWAY REFERENCE DATA

BASIN DRAINAGEWAY INFORMATION 100 YEAR FLOOD PLAIN DATA FLOODWAY DATA
REACH I DENT I F I CAT I ON CROSS STAT I O~ FLOWLINE 100 YR, DISCHARGE WATER SURFACE TOP WIDTH FLOODWAY TOP WIDTH G) WATE R SURFACE
AND LOCAT ION SECTION ELEVAT ION (cfs) FLOOD ELEVATION (FEET) LEFT (FT) RI GHT (FT) TOTAL (FT) FLOOD\iAY ELEV,
DUTCH CREEK 91 335 + 90 5669.2 1500 5672.5 80 (3)
92 341 + 20 5676.9 1500 5680.6 55 (3)
93 344 + 80 5682,4 1500 5687.5 55 (3)
94 350 + 85 5694.0 1500 5701,2 40 (3)
95 355 + 50 5703,6 1300 5709.2 115 (3)
96 364 + 40 5717.2 1300 5722.4 45 (3)
97 372 + 45 5731. 4 1200 5737,6 30 (3)
98 378 + 15 5741.0 1200 5747.7 26 (3)
98,3 380 + 25 5753,5 1200 5762.7 20 (3)
99 384 + 10 5765.2 1100 5771.5 30 (3)
100 390 + 25 5775.6 1100 5782.8 30 (3)
101 398 + 35 5793.9 1100 5800.9 30 (3)
102 405 + 25 5807.7 1100 5815.2 35 (3)
103 413 + 85 5830.5 1000 5837.1 30 (3)
104 420 + 55 5853.0 1000 5857.8 45 (3)
105 428 + 30 5871 .8 900 5876.7 80 (3)
106 436 + 00 5892.3 900 5898.1 40 (3)
107 446 + 10 5932.5 900 5937.9 30 (3)
108 450 + 00 5951. 6 900 5957,3 35 (3)
NORTH BRANCH DUTCH CREE 201,1 2 + 90 5620.8 600 5623.9 35 (3)
202 6 + 95 5625.9 600 5630.2 35 (3)
202.3 9 + 00 5630.0 600 5635.6 20 (3)
202.5 10 + 20 5640.0 600 5642.4 70 (3)
202.8 12 + 00 5644.7 600 5648.3 65 (3)
203 14 + 15 5662,9 600 5665.4 95 (3)
203.1 14 + 50 5655,8 600 5665.8 250 (3)
203.5 18 + 00 5662.0 450 5666.1 50 (3)
204 21 + 90 5673.9 450 5676.7 55 (3)
205 30 + 40 5697,5 400 5700.4 35 (3)

C-4

(I) DISTANCe: IN FEET, ABOVE MOUTH OR TRIBUTARY INTERSECTION.
(2) LIMITS ARE DEFINED BY DISTANCES LEFT AND RIGHT OF REFERENCE LINE LOOKING DOWNSTREAM.
(;3) FLOWS ARE CONTAINED IN CHANNEL, FLOODWAV DATA NOT PROVIDED.

(4) FLOODWAY DATA DETERMINED USING JEFFERSON COUNTY CRITERIA
(5) FLOODWAY DATA DETERMINED USING UD a FCD CRI"fERIA.
(6) FLOOCWAY SAME AS MAIN FLOW AREA OF FLOOD PLAIN

URBAN DRAINAGE & FLOOD CONTROL DISTRICT
FLOOD HAZARD AREA DELINEATION
URS COMPANY