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 DRAINA~EWAY INFORMATION 100 YEAR FLOOD PLAIN DATA FLOODWAY DATA
REACH I DENT I F I CAT I ON CROSS STATIOJD FLOWLI NE 100 YR, DISCHARGE WATER SURFACE TOP WIDTH FLOODWAY TOP WIDTH CD WATE R SURFACE
AND LOCAT ION SECTION ELEVATION (cfs) FLOOD ELEVATION (FEET) LEFT (FT) RIGHT (FT) TOTAL ( FT) FLOOD\IAY ELEV,
COON CREEK 526 86 + 00 5483.3 2600 5487.7 200 120 30 150 5487.7 (4)
527 88 + 85 5485.2 2600 5490.9 245 130 60 190 5491.1 (4)
528 93 + 40 5493.1 2500 5495.7 285 150 90 240 5495.7 (4)
PRIVATE DRIVE 529 94 + 40 5496.4 2500 5498.1 310 Street Section
530 94 + 75 5494.2 2500 5498.8 355 250 80 330 5498.8 (4)
531 97 + 95 5495.7 2500 5500.5 190 75 45 120 5500.5 (4)
532 102 + 30 5501.6 2500 5505.4 160 55 55 110 5505.6 (4)
533 107 + 20 5505.8 2500 5510.6 240 90 90 180 5510.7 (4)
534 107 + 85 5512.9 2500 5514.9 300 Dam Section
534.1 108 + 50 5508.0 2500 5515.7 310 Pond Section
535 113 + 30 5512.5 2300 5517.3 80 25 35 60 5517.3 (4)
535.5 116 + 95 5516.0 2300 5521.1 200 30 110 140 5521.5 (4)
536 120 + 25 5519.9 2300 5523.7 110 20 60 80 5524.1 (4)
537 125 + 10 5525.7 2300 5529.5 150 60 50 110 5529.9 (4)
538 125 + 30 5527.0 2300 5531.9 165 Dam Section
539 127 + 90 5528.5 2300 5533.6 170 75 75 150 5533.6 (4)
540 131 + 75 5530.6 2300 5534.5 85 30 40 70 , 5534.6 (4)
541 135 + 00 5532.4 2300 5537.9 155 65 65 130 5538.1 (4)
541.9 138 + 70 5542.6 2300 5545.2 230 125 60 185 5545.2 (4)
542 139 + 65 5542.2 2300 5546.4 245 Pond Section
544 142 + 20 5544,7 2200 5555.0 400 260 100 360 5555.0 (4)
545 149 + 65 5549.1 2000 5554.9 165 75 65 140 5554.9 (4)
545.3 153 + 00 5553.6 2000 5557.5 180 45 85 130 5557,5 (4)
546 158 + 75 5559.7 1900 5565,3 180 120 30 150 5565.3 (4)
547 165 + 45 5570.6 1800 5574.8 150 50 60 110 5575.2 (4)
548 170 + 85 5579.8 1700 5582.0 190 80 45 125 5582,1 (4)
549 175 + 25 5584.3 1600 5588.1 940 Dam Section
550 175 + 95 5607.1 1600 5612.8 880 Dam Section
551 192 + 35 5605.5 1400 5613,8 205 95 85 180 5614.1 (4)
552 192 + 35 5606.1 1400 5613.8 50 (3)

C-lO

(I) DISTANCE tN 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) FLOOCWAY DATA DETERMINED USlNG JEFFERSON COUNTY CRITERIA.
(5) FLOODWAY DATA DETERMINED USING ~D Ell FCD CRrfERIA.
(6) FLOODWA,Y SAME AS MAIN FLOW AREA OF FLOOD PLAIN

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