WSP06870

• File Number: 8210.470
• Description: Pacific Southwest Interagency Committee
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 2/21/1962
• Author: PSIAC
• Title: Stock Water Facilities Guide - Second Draft as of February 21 1962
• Water Supply Pro - Doc Type: Report/Study

HSH

HYDROLOGY:

ESTIMATION OF ANNUAL WATER YIELDS FROMlUNGAGED
WATERSHEDS OF 10 TO 2000 ACRES IN SIZE

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REFERENCE

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Table 1. Values of W
Ratio piT
Acres .1 .2 .3 .4 -5 .6 .7 .8 .9 1.0 1.1
10 22 20 18 16 14 J2 11 11 10 10 10
20 27 24 21 18 15 13 J2 11 10 10 10
30 31 28 23 19 16 14 J2 11 11 10 10
40 34 30 25 20 16 14 J2 11 11 10 10
60 39 34 28 22 17 14 J2 11 11 10 10
&l 43 37 30 23 18 15 13 11 11 10 10
100 47 40 32 24 19 15 13 J2 11 10 10
200 59 49 38 27 20 16 13 J2 11 10 10
300 68 55 42 30 22 17 14 J2 11 10 10
400 74 60 45 31 22 17 14 J2 11 10 10
600 85 68 49 34 24 18 14 J2 11 10 10
800 94 74 53 36 25 18 14 J2 11 10 10
1000 101 79 56 37 25 19 15 J2 11 11 10
1200 107 B4 59 38 26 19 15 J2 11 11 10
1400 113 B8 61 40 27 19 15 J2 11 11 10
1600 118 91 63 41 27 19 15 J2 11 11 10
1&l0 J23 95 65 42 28 20 15 13 11 11 10
2000 J28 98 67 42 28 20 15 13 11 11 10

This dra"Wing developed by Victor Moclms in
cooperation with Tyler H. Quackenbush and
H.O. Ogrosky, for discussion at the Soil
Conservation Service irrigation engineers'

meeting at Sarasota, Florida, November 17,
1958. Suggestions made at that meeting have
been considered in making this revision.

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u. S. DEPARTMENT OF AGRICULTURE
SOIL CONSERVATION SERVICE

STANOARD DWG_ NO_
Es-1014
SHEET lOF L
DATE 12-5-58

ENGINEERING DIVISION