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<br />**CONSENT ITEM 5.3.** <br /> <br />. MS ~ June 27, 1994 <br />CONS[)LTING ENGlNEEILS File: 230-216-20 <br /> <br />CIVil ENGINEERING <br /> <br />ENVIRONMENTAL <br /> <br />MUNICIPAL <br /> <br />PLANNING <br /> <br />STRUCTURAL <br /> <br />e SURVEYING <br /> <br />TRAFFIC <br /> <br />TRANSPORTATION <br /> <br />1326 Energy Pork Drive <br />51. Paul, MN 55108 <br />612-644-4389 <br /> <br />Fox: 612-644-9446 <br /> <br />e 9800 5helard Parkway <br />Minneapolis, MN 55441 <br />612-546-0432 <br /> <br />Fox: 612-544-6398 <br /> <br />Mr. Pat Klaers <br />City Administrator <br />City of Elk River <br />13065 Orono Parkway <br />Elk River, MN 55330 <br /> <br />RE: ELK PARK CENTER TRUNK SEWER AND WATER IMPROVEMENTS <br />CHANGE ORDER NO. 1 <br /> <br />Dear Mr. Klaers: <br /> <br />Enclosed are three copies of Change Order No. 1 for the Arcon Construction contract on the <br />trunk sanitary sewer and water improvements serving Elk Park Center. This change order <br />relates to the jacking of the watermain and sanitary sewer under TH 169. <br /> <br />At the time that the construction of the jacking was initiated, a substantial amount of large <br />boulders were found in the area of the jacking pit. These raised the potential of blocking the <br />casing from crossing underneath the highway. In order to deal with this concern, the size <br />of the casings for the sanitary sewer and water were increased from 20 inches and 24 inches <br />to 30 inches. A 30-inch casing allows the Contractor to send a man to the end of the casing <br />to break up and remove any boulders that may be encountered during the jacking process. <br />Any size smaller than 30 inches does not allow this type of operation. Therefore, if a <br />smaller casing were to run into a large boulder, the casing would have to be withdrawn and <br />the process started over again. Obviously, that is a much more expensive operation. <br /> <br />The change order compensates the Contractor for the increase in material cost for the larger <br />casing and the labor associated with the jacking and dealing with the boulders in the area. <br />The total amount of the change order is $13,368.75. There would be no extension of the <br />completion date to accomplish this change order. We have carefully reviewed the situation <br />in the field and would recommend approval of this change order. <br /> <br />If you have any questions regarding this issue, please call. <br /> <br />Sincerely, <br /> <br />MSA, CONSULTING ENGINEERS <br /> <br />T~~ <br /> <br />TJM:tw <br />Enclosure <br /> <br />215-2711.jun <br />