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 I DENT I F I CAT I ON CROSS STATIO~ FLOWLINE 100 YR, DISCHARGE WATER SURFACE TOP WIDTH FLOODWAY TOP WIDTH CV WATE R SURFACE
AND LOCATION SECT ION ELEVATION (c f s) FLOOD ELEVATION ( FEET) LEFT (FT) RI GHT (FT) TOTAL (FT) FLOOD\,AY ELEV,
NORTH BRANCH DUTCH CREEK 205.4 34 + 00 5713.0 350 5716.8 25 (3)
205.5 35 + 05 5731.4 350 5733.3 250 (3)
205.6 36 + 00 5724.5 350 5733.7 195 (3)
206 38 + 68 5735.8 350 5737.3 75 (3)
207 48 + 75 5783.9 300 5785,6 65 (3)
(3)
LILLEY GULCH 301 1 + 40 5431.2 1900 5439.5 305 80 140 220 5439.5 (4)
302 3 + 90 5434.8 1900 5440.8 55 (3)
303 8 + 25 5437.8 1900 5446.0 75 (3)
304 9 + 85 5445.9 1900 5449.0 140 (3)
305 13 + 20 5450.2 1900 5453.9 125 Dam Section
306 13 + 90 5459.9 1900 5462.5 290 Pond Section
307 14 + 95 5457.5 1900 5463.1 285 (3)
308 18 + 40 5457.4 1900 5463,1 165 (3)
309 21 + 90 5463.6 1900 5467.9 150 (3)
310.1 23 + 00 5473,0 1900 5474.4 125 (3)
311 23 + 65 5466.6 1800 5475.1 230 (3)
312 29 + 75 5471.0 1800 5475.3 100 (3)
313 36 + 40 5479.7 1800 5484.5 105 (3)
314 41 + 70 5486,8 1700 5490.3 110 (3)
315 47 + 20 5494,0 1700 5499.9 80 (3)
PEAKV I EW DR I VE 316.1 50 + 00 5513,0 1700 5513.6 350 Street Section
317 53 + 90 5502,7 1700 5513.9 220 (3)
318 59 + 00 5509.7 1700 5514.7 105 (3)
319 61 + 55 5511. 8 1700 5517.7 115 (3)
PEAKV I EW DR I VE 320 64 + 85 5522.7 1700 5524.3 145 Street Section
321 65 + 45 5514.8 1600 5524.7 110 (3)
322 67 + 00 5517.3 1600 5524.8 80 (3)
323 69 + 25 5520.2 1600 5527,2 90 (3)
324 69 + 90 5525.0 1600 5528.6 125 (3)

C-5

(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, FLOODWAY DATA NOT PROVIDED.

(4) FLOODWA'y DATA DETERMINED USING JEFFERSON COUNTY CRITERIA.
(5) FLOODWAv DATA DETERMINED USING :JD a FeD CRITERIA.
(6) FLOODWAY SAME: AS MAIN FLOW AREA OF FLOOD PLAIN

URBAN DRAiNAGE & FLOOD CONTROL DISTRICT
FLOOD HAZARD AREA DELINEATION
URS CO~1PANY