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 PLAIN AND FLOODWAY REFERENCE DATA

BASIN DRAINAGEWAY INFORMATION 100 YEAR FLOOD PLAIN DATA FLOODWAY DATA
REACH IDENTIFICATION CROSS STAT I O~ FLOWLINE 100 YR, DiSCHARGE WATER SURFACE TOP WIDTH FLOODWAY TOP WIDTH 0 WATE R SURFACE
AND LOCATION SECTION ELEVATION (ds) FLOOD ELEVAT I ON (FEET) LEFT (FT) RIGHT ( FT) TOTAL (FT) FLOODflAY ELEV.
DUTCH CREEK 31 97 + 80 5393.1 4500 5403.7 190 144 26 170 5403.8 (4)
32 99 + 70 5396,2 4500 5404.6 210 130 40 170 5404.6 (4)
33 102 + 40 5397.9 4500 5407.8 210 140 45 185 5407.8 (4)
34 105 + 35 5401. 7 4500 5411.4 165 115 20 135 5411.4 (4)
35 110 + 15 5406.3 4500 5417,3 380 200 45 245 5417.3 (4)
36 114 + 70 5409.1 4500 5421.8 150 85 25 110 5421.8 (4)
37 119 + 15 5413.9 4500 5426.4 168 70 50 120 5426.4 (4)
38 123 + 10 5422.2 4500 5430.0 295 90 30 220 5430.4 (4)
39 127 + 65 5427.3 4500 5434.4 285 75 155 230 5434.4 (4)
40 131 + 95 5429.5 4500 5437.9 145 70 40 110 5437.9 (4)
41 134 + 85 5436.7 2900 5441.5 295 110 155 265 5441.8 (4)
42 139 + 50 5440.8 2900 5444,6 255 125 110 235 5444.6 (4)
43 142 + 20 5442.9 2900 5446.2 295 125 150 275 5446.2 (4)
44 146 + 90 5446.6 2900 5451,1 340 35 130 165 5451.3 (4)
PIERCE STREET 45 148 + 10 5448.8 2900 5461.1 Street Section
46 149 + 00 5448,9 2900 5461.1 775 215 500 715 5461.1 (4)
47 153 + 20 5451.1 2900 5461.1 690 270 385 655 5461,1 (4)
48 161 + 40 5458.0 2900 5462.4 150 100 30 130 5462.4 (4)
49 166 + 30 5466.6 2900 5469,2 540 330 125 455 5469.2 (4)
50 170 + 92 5470.0 2800 5473.1 370 90 220 310 5473,1 (4)
51 175 + 20 5473.3 2800 5478.1 325 20 280 300 5478.1 (4)
52 180 + 15 5477.1 2800 5482.5 345 275 45 320 5482,5 (4)
55 184 + 85 5480.6 2800 5486.5 170 85 60 145 5486.5 (4)
56 188 + 15 5487,0 2800 5494.5 145 (3)
YUKON STREET 57 188 + 85 5486.5 2800 5494.7 360 5 tree t Sect ion
58 189 + 85 5487.3 2800 5495.1 105 (3)
59 194 + 30 5491.8 2800 5498.8 65 (3)
60 195 + 30 5494.0 2800 5500.5 125 Enc mac ment Permiti ed to Redef i e Channel
61 197 + 05 5496.8 2800 5501.3 120 (3)
62 201 + 00 5499.5 2800 5505.9 170 (3)

C-2

(I) DISTANCE IN FEEr, ABOVE MOUTH OR TRIBUTARY INTERSECTION. (4) FLOODWAY DATA DETERMINED USING JEFFERSON COUNTY CRITERIA
(2) LIMITS ARE DEFINED BY DISTANCES LEFT AND RIGHT OF REFERENCE LINE LOOKING DOWNSTREAM. (5) FLOODWAY DATA DETERMINED USING UD a FeD CRITERIA.
(3) FLOWS ARE CONTAINED IN CHANNEL, FLOODWAY DATA NOT PROVIDED. (6) FLOODWAY SAME: AS MAIN FLOW AREA OF FLOOD PLAIN

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