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RETAINING WALL <br />Test borings that were done by Twin City testing in the area of the <br />proposed retaining wall indicated soils consistent for the area which is <br />rubble fill over good sands. <br />Lowell Wenzel, of Rehder-Wenzel, Inc. Consulting Engineers & Land <br />Surveyors has indicated the hill can be contained by a combination of a <br />timber retaining; wall in the areas where the wall does not exceed 6-8 <br />feet, and in the steeper areas PZ 27, very stiff., steel sheet pilingcould be <br />used. Please refer to enclosed diagrams as to how these would be constructed. <br />An exact structural design of this wall will be determined by the struct- <br />ural engineer and after obtaining a number of bids. <br />Eachmanns has recommended creeping vines to be planted at the base <br />of the retaining walls. (See landscape plan.) <br />