FLOOD01405

• County: Jefferson
• County: Arapahoe
• Community: Jefferson County, Arapahoe County
• Stream Name: Massey Draw, North Tributary SJCD
• Title: Major Drainageway Planning
• Date: 7/1/1979
• Prepared For: Jefferson County / Adams County
• Prepared By: UDFCD
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Table III-6
FLOOD VOLUME SUMMARY 1
All Values In Acre-Feet
EXISTING
Design2 DEVELOPED CONDITION CONDITION
Point 2 year 5 year 10 year 50 year 100 year 100 year
1 89.7 147.5 279.0 368.6 426.4 Note 4
2 89.7 147.5 279.0 368.6 426.4 Note 4
3 68.0 127.6 220.4 294.1 333.0 286.8
4 48.7 90.3 152.4 204.7 231.7 190.0
5 48.7 86.6 '142.7 190.4 214 .5 172.9
B2 15.7 28.5 47.8 64.0 72.3 60.3
6 33.0 58.1 94.9 126.4 142.2 112.5
7 20.0 34.9 56.5 75.1 84.4 63.7
E2 4.6 8.6 14.7 19.8 22.3 18.5
8 15.4 26.3 41.8 55.3 62.1 45.3
9 24.3 41.9 68.2 92.3 104.6 87.8
10 11.3 20.9 35.9 48.3 54.6 44.6
11 101. 3 162.1 239.3 337.2 394.0 324.8
12 75.2 121. 4 179.1 256.3 302.4 251. 8
13 30.4 46.9 61. 8 95.1 118.5 95.0
143 125.6 204.0 307.5 429.5 498.6 412.6

3500

3000

2500
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1500

NOTE: 1. Table assumes all of sub-basin A contributes between
design points 3 and 4.
2. Design points located on Sheet 1.
3. Neglects tributary area below Wadsworth Boulevard.
4. Tnformation for North Tributary to SJCD (South) -
Basin 6200 wa, not available.

1000

500

7
Figure 111-1

FLOOD HYDROGRApHS
SJCD (SO) 6200 AT NEVADA DITCH
Future Development
Design Point 2

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100

150

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50

TIME (in minutes)

~ Leonard Rice Consulting Water Engineers, Inc.