FLOOD06965

• County: Adams
• Community: Northglenn, Thornton
• Stream Name: Grange Hall Creek
• Basin: South Platte
• Title: Major Drainageway Planning
• Date: 12/1/1977
• Prepared For: Adams County
• Prepared By: UDFCD
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

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LOCATION FLOOD PLAIN DATA FLOODWAY DATA
STATlONCD 100 yr. OISCHARGE THALWEG 100 yr. FLOO&> 100 yr. FLOOOPLAIN FLOOOWA Y WIDT!-@ FLOODWAY
IDENTIFICATION SHE ET NO. ELEV. I FT.) <ID REMARKS
Z ( C.F.S.) ~LEV. (FT.) WIDTH (FEET) LEFT (FT.l RIGHT (FT.) TOTAL (FT. ) ELEV. (FT j@
ai
1r 12+00 550 5184.8 5187.4 130 50 20 70 5187.9
I- 8+50 550 5178.0 5182.6 50 30 20 50* 5182.6
6+00 550 5173.0 5178.1 30 10 20 30* 5178.1
U/S Confl . 1+00 550 5163.0 5169.6 15 5 10 15* 5169.6
NE U/S York St. 23 50+00 550 5246,0 5246,8 180 70 110 180* 5246.8 Pond
D/S York St. 44+15 700 5229.0 5232.0 25 15 10 25* 5232.0
40+00 700 5225.5 5230.3 2:10 155 135 290* 5230.3 Pond
36+00 700 5224.0 5229.0 40 20 20 40* 5229.0
u.i 34+90 700 5220.0 5224.6 110 35 25 60 5224.7
:2 31+00 750 5209.5 5214.4 225 100 125 225* 5214,4 Pond
ai 24 27+40 750 5208.1 5213.1 45 20 25 45* 5213.1
a:: 24+15 900 5196.5 5203.2 35 15 20 35* 5203.2
I- 20+70 900 5188.5 5194.0 55 25 30 55* 5194.0
U/S E. 112th 17+75 900 5186.5 5190.7 150 60 90 150* 5190.7
D/S E. 112th 14+00 950 5176.0 5177.8 165# 50 40 90 5178.3
10+80 950 5168.4 5173.4 30 15 15 30* 5173.4
8+00 950 5159.1 5164.7 65 30 35 65 * 5164.7
U/ S Confl . 3+00 950 5151. 7 5156.2 55 25 30 55 * 5156.2
SE D/S UPRR 25 40+40 160 5217.0 5218.0 60 40 20 60 * 5218.7
1 38+00 160 5209.0 5210.7 35 25 10 35 * 5210.7
32+10 160 5187.0 5187.8 75 25 10 35 5188.0
27+00 220 5172.5 5176.9 110 55 55 110 * 5176.9
UJ U/S Cola Blvd 23+10 220 5168.0 5176.9 425 165 260 425 * 5176,9 Ponding
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I. Stationing In Hundreds Df Feet Above The Mouth, Or Confluence. * Flaadway Contained Within Main Channel.
2- From Tholweo Of Channel LoakinO Downstream. # Floodplain Width Is Affected By Overflow Returnino To Main Channel.
3. Elevations Are U. S.G.S. Datum. See Plan a Profile Sheet For Complete Floodplain Information.
~ HYDRO-TRIAD, LTD, N__ H" URBAN DRAINAGE Ar-D FLOOD CONTROL DISTRICT FLOOD HAZARD AREA DELINEATION
7:K)() W. MialulPPl /IW. MAW. ~ FLOODWAY DATA
Suite OK) 8uJtlIn, A AtIWI' .... CITY OF NORTHGLENN CITY OF THORNTON AOAMS COUNTY GRANGE HALL CREEK T.C>.BLE m.5d
La..wood, Colo. 8022& "Ill"" ..n
50:1-934.2477