FLOOD10157

• Designation Number: 74
• County: Arapahoe
• Community: Aurora
• Stream Name: Granby and Sable Ditches
• Basin: South Platte
• Title: FHAD - Granby and Sable Ditches, Aurora, Colorado
• Date: 4/1/1977
• Designation Date: 7/27/1977
• Floodplain - Doc Type: Floodplain Report/Masterplan

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A-9

FLOODING SOURCE FLOOD PLAIN OATA FLODDWAY DATA
STATlONI IOOyr DISCHARGE THALWEG IOOyr FLDDD IOOyr FLOOO PLAIN FLOOOWAY WIOTH2 FLOODWAY
IDENTIFICATION CROSS SECTION
(CFS) ELEV (MSL) ELEV. (MSL) WIDTH (FEET) LEFT (FT) RIGHT (FT) TOTAL (FT) ELEV. (MSL)
32 114+10 1100' 5421.8 5426.8 318 38 52 90 5426.8
33 117+20 1100' 5425.0 5427,9 221 47 52 99 5427,9
8TH AVE. 34 119+10 1050' 5427,0 5429.2 215 140 60 200 5429.3
35 119+53 1150 5424,4 5429.2 146 131 15 146 5429.2
36 121+80 1150 5427,0 5430.7 140 72 68 140 5430,7
HIGHLlNE CANAL 37 125+48 1150 5428.0 543 1 .8 D / S 490 72 418 490 5431.6 .
36 127.82 1150 5432,2 5445. I U/S 790 220 570 79J 5445. I
39 129+77 1150 5439.0 5445. I 569 145 424 569 5445. I
40 133+00 1100 5439,0 5445. I 260 108 152 260 5445. I
41 I 37 +56 1100 5439.0 5445.2 140 120 20 140 5445.2
LARADO ST. 41.5 138+20 1100 5439.0 5445.2 Dls 112 88 24 112 5445.2
42 139+ 12 1100 5439.0 5449.2 ulS 252 55 65 120 5449.2
SAB E DITCH OVER FLOW
102 7+00 1715 5335.0 5342.2 120 62 26 88 5342,6
103 8+25 1715 5335.5 5342.6 272 90 18 108 5342.8
104 10+99 1715 5336.0 5342.6 535 82 29 III 5343. I
105 17+50 1715 5340.2 5343.8 295 70 46 116 5344.5
2 19+98 1470 5342.0 5346.0 - 70 195 265 6346.0
.

I. DISTANCE IN FEET A60VE MOUTH.

2. FROM CENTER OF CHANNEL LOOKING DOWNSTREAM.

3. AREA 8ETWEEN FIRST AND SECOND DISTANCE IS
EXCLUDED FROM FLOODWAY.

DVERLAND FLOW ONLY. REMAINDER OF FLOW IN STORM SEWER

FLOOD PLAIN AND FLOODWAY REFERENCE DATA

URBAN ORAINAGE a FLOOO CONTROL OISTRICT

GRANBY

DITCH AND SABLE DITCH OVERFLOW

FLOOD HAZARD AREA DELINEATION
CITY OF AURORA

TABLE VII