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MINUTES <br />CITY COUNCIL <br />MARCH 11, 1992 <br />improvement. Since receipt of that petition, the City <br />Engineer has prepared a feasibility report which <br />explores the various options which are available. <br />Blesener asked if this feasibility report has been <br />submitted to the Ryan Industrial Park property owners <br />for their review. <br />Staff replied that the report has not been distributed <br />to the property owners, but some have come to City Hall <br />to review the report. <br />The City Engineer presented his feasibility report in <br />detail beginning by describing the improvement area. <br />The Engineer noted that Ryan Industrial Park is a <br />commercial/industrial area and the streets within the <br />Park receive heavy use. The Engineer reported on soil <br />conditions within the Park, reporting that there is a <br />depth of approximately 20 to 40 feet of peat in the <br />area with 5 to 20 feet of flyash over the peat. <br />Typically in peat areas such as this before a road is <br />constructed, the area is excavated and a <br />non-compressible material is brought in. This is a <br />very expensive process. Another alternative is that <br />the compressible material is surcharged with a heavy <br />load to make it less compressible. A third alternative <br />is to bridge over the top of the compressible material, <br />and allow the compressible material to settle and move. <br />The Engineer reported that another factor to consider <br />in road construction is water. When water gets into <br />the subgrade of a street, the road becomes soft and the <br />bituminous begins to break up. For a long life road, <br />the water situation must be addressed. <br />The Engineer reported that with respect to the Ryan <br />Industrial Park roads, removing or compressing the peat <br />are not viable alternatives because the area is already <br />developed. <br />The Engineer reported that he has reviewed three <br />options for improvement of the Ryan Industrial Park <br />streets. Option A involves a 36-foot wide street with <br />concrete curb and gutter. Drain tile is proposed on <br />the edges of the street to remove surface water. It is <br />also recommended that fabric be used to keep <br />sub-materials out of the road base. This street would <br />Page 2 <br />