WSP11664

• File Number: 8220.128.J
• Description: Silt Project
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 8/1/1961
• Title: Report of the Reappraisal of Direct Agricultural Benefits and Project Impacts - Silt Project-Colorado - Part 1 of 2
• Water Supply Pro - Doc Type: Report/Study

Table 2. - Generalized soU-water relationship and acreages of land capability units ~ evaluation areas,
SUt Project
l1.i
CO Land W'ater--holdlna Capacity
C"? Evaluation Capa- So 11
Areas blllty Acres % Slope Depth Inches per : Total inches Remarks
Unit Inches foot of soil: for profile
A He 48 0-1 60' 2,0 10'
IIs 10 0-1 60' 2,0 10'
IIe 493 1-3 60' 1.7 8'
lIes 6 1-3 60' 2,0 10<-
Uesl 19 1-3 60' 2.0 10<-
IIes2 297 1-3 60' 2,0 10'
ilels! 43 1-3 60<- 2.0 10<-
Illsl 13 1-3 60<- 2.5 12'
IIIs2 113 1-3 60<- 2,0 10'
IUs3 2 1-3 60<- 2" 12'
IIIe 1,883 3-6 60' 2,0 10<- Some so Us underlain bt
gravel between )0 and a"
Illes 38 3-6 60' 2,0 10'
Illes! 9 3-6 60<- 2.S 12+
IIIes2 188 3-6 60' 2.0 10'
Illes) ---2i 3-6 60' 2" 12'
Total Acres (A) 3,218
E IVs2 21 3-6 60' 2,0 8' Some 5011 underlain by
gravel at 4811
IVs3 8 3-6 60' 2" 12'
IVs4 103 3-6 60' 1.7 8' Gravel between 20 and 4811
IVs, 19 3-6 60' 1., 3' Shallow to gravel
IVe 64 6-12 60<- 2,0 9' Same soils overlying gravel
at 30 to 48n
IVel 1,000 6-12 48-60' 2,0 10' Some soils underlain br
gravel between 30 and 811-
some wi th shale at 48"
IVe2 24 6-12 60<- 2,0 10'
IVe4 223 6-12 60<- 1.7 7' Much of soil underlain by
gravel between 20 and 4811
Total Acres (8) 1,462
e IIe 280 1-3 60<- 2,0 10<-
IIes2 127 1-3 60' 2,0 10'
rrIe 244 3-6 60' 2.0 10' Small area of soil underlain
by gravel be tween 20 and 3611
IIIes2 -2. 3-6 60' 2.0 8' Gravel at 48n
Total Acres (e) 6,7
D IVe 101 6-12 60<- 2,0 9' Same salls underlain bL
gravel between 20 and 8n
IVe1 69 6-12 60' 2.0 10'
IVe4 --.J2. 6-12 60<- 2.0 10'
Total Acres (D) 21,
E LIe 21 1-3 60' 2.0 10'
Ills 10 1-3 60' 2.0 10'
HIe 112 3-6 60' 2,0 10<-
IlIesl ---1! 3-6 60' 2.0 10<-
Total Acres (E) 161
F IVs , 1-3 60+ 2.5 12'
IVs) 27 3-6 60' 2" 12'
IVs4 , 1-3 60<- 2,0 10' Small acreage underlain by
shale at depths between
36 and 6011
IVe1 113 6-12 36-60<- 1.7 7' Much of solls underlain by
gravel between 20 and 4Blt
IVe2 9 6-12 60' 2.0 10<-
IVe4 ~ 6-12 60+ 1.7 3' Gravel at 2011 - moderately
Total Acres (F) 177 stony soU
G IIe ,6 1-3 60+ 2.0 9' Some so 11s underlain by
gravel between 36 and 60"
IIIs 39 1-3 60' 2.0 10'
IIIe 179 3-6 60<- 2.0 9' Some solls underlain by
gravel between 36 and 6011
TIlesl -2l 3-6 60' 2" 12'
Total Acres (G) 341
H IVs1 92 3-6 60' 2" 12'
IVe1 17, 6-12 60' 1.7 7' ( These soils are shallow to
IVe2 38 6-12 60' 2.0 5' ) deep over gravel but all
IVe4 ---..ll 6-12 60' 1.7 3' ( are deep to underlying rock
Total Acres (H) 346
TOTAL PROJECT ACRES 6.,97