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<br />. <br /> <br />· Clear Lake - The Clear Lake bypass alignment would follow the existing TH 24 and <br />70th Avenue Southeast alignments to the west of Clear Lake (Figure VI-4). The <br />environmental and community impacts of this bypass were relatively minor. <br /> <br />. St. Cloud - A 1995 MnDOT District 3 study indicated that a bypass around the eastern <br />edge of S1. Cloud was not warranted. This study found that only twenty-five percent <br />ofTH 10 trips would use the bypass. The study recommended that minor geometric <br />improvements be completed at existing intersections and interchanges as needed <br />through the year 2015. System management, including TSM and land use management, <br />was also recommended to maintain the function of TH 10 as a principal arterial. <br /> <br />In summary, with the exception of the Clear Lake bypass, this alternative has <br />significant environmental impacts that severely detract from its mobility and safety <br />benefits, rendering it infeasible. <br /> <br />Cost <br /> <br />Table VI-I summarizes the major cost elements of the bypass option by roadway segment. <br />It should be noted that right-of-way costs were not included in these cost estimates. They <br />were anticipated to significantly increase construction costs. <br /> <br />. <br /> <br />Table VI-l <br />Order of Magnitude Bypass Construction Cost (1998 $) <br /> <br /> Bypass Segment <br /> Elk River Big Lake Becker Clear Lake <br />Construction Element <br />Roadway Length 6.5 miles 6.1 miles 2.0 miles 0.0 <br />Number of River Crossings I 2 0 0 0 <br />Number of Railroad Crossings2 0 1 2 0 <br />Number of Interchanges 4 3 0 1 <br />Construction Element Cost <br />Roadway3 $13.0 million $12.2 million $4.0 million -- <br />River Crossing4 $19.2 million -- -- -- <br />Railroad CrossingS -- $1.3 million $2.6 million -- <br />Interchange6 $20.0 million $15.0 million $0.0 million $5.0 million <br />Total Cost (1998 $) $52.2 million $28.5 million $6.6 million $5.0 million <br /> <br />Assumptions: <br />I Dimension for river crossing bridge is 80 feet wide by 150 feet long. <br />2 Dimension for railroad crossing bridge is 80 feet wide by 200 feet long. <br />3 Cost for new four-lane divided roadway is $2.0 million per mile. <br />4 Cost for river crossing bridge is $80 per square foot. <br />S Cost for railroad crossing bridge is $80 per square foot. <br />6 Cost for interchange is $5.0 million each, including bridge. ramps and roadways. <br /> <br />. <br /> <br />Northstar Corridor Major Investment Study <br />Conceptual Definition of Alternatives <br />February 1999 <br /> <br />VI-12 <br />