FLOOD00922

• County: Statewide
• Community: Pipestone Minnesota
• Title: Problem Identification Report and Appendixes Pipestone Creek Minnesota
• Date: 4/1/1995
• Prepared For: US Army Corps of Engineers
• Prepared By: Greenhorne & O'Mara, Inc.
• Floodplain - Doc Type: Project

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and north of the Main Ditch between Ninth Street and U.S. Highway 75. The At soils
consist of clay. is fine grained and low plastic, and is black to olive-brown in color fiom
the surface to 2.5 feet deep. The penneability for the clay soils in this group lIIIges from
0.18 to 0.23 inches per hour. The soil below the At soil consists of sand and gravel, is
coarse gained and nonplastic. and is yellowish-brown in color. The penneability for this
soil was over 6.3 inches per hour. The water table depth for the At soil ranges from 2 to 5
feet. The Hidewood silty clay loam (Hd) was associated with soils located from 500 to
800 feet southwest of the Main Ditch in the general area of Fourth Street. The Hd soil
consists of clay. is fine grained and low plastic, and is black to grayish-brown ill color.
The penneability for this soil ranges from 0.63 to 6.3 inches per hour and the wter table
was assumed to be less than 2 feet deep. The Brookings silty clay loam (Da) occupies the
area from 100 to over a 1.000 feet to the south and west of the Main Ditch soulb ofN"mth
Street. The Ba soil consists of clay. is fine grained and low plastic, and is bId to olive-
brown in color. The permeability of the soil ranges from 0.63 to 6.0 inches perhour. The
water table depth was assumed to be less than 2 feet. The Trosky silty clay loam (fs)
was associated with soils located about 100 to 600 feet east of the Main Ditch. The Ts
soil consists of clay. is fine grained and low plastic. and is black to olive in color. The
penneability of the soil ranges from 0.63 to 6.3 inches per hour in the top 3 feet and over
6.3 inches per hour below 3 feet. The soils below these clays consist of sands lIId gravels
similar to the soils below the At soils. The water table depth for these soils was assumed
to be less than 2 feet.

In conclusion, the majority of the soils identified within 200 feet of the Main
Ditch consists of clay and exhibits a penneability which ranges from 0.63 to 2.0 inches
per hour. These clays are fine grained and low plastic, and are black to dark gray in
color. In general. it should be possible to construct a levee using the onsite maIICriaIs.

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