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<br />shift slightly over time, this will not impede the function of the walkway or pedestrian crossings. <br />I originally mentioned to the City Council that installing concrete would be more expensive. <br />Although this is the case, when you look at the low bidders difference between the Base Bid and <br />Bid Alternate 1, it’s not significant. One change that City staff would like to make to the Base <br />Bid is to revise the Feature Intersections Detail to have no brick pavers within the 6’ concrete <br />walk area. The construction cost for this is an additional $6,500. I will go over this revision <br />during my power point presentation next Wednesday. I will also go over some other critical <br />design details. They include stabilizing the rock mulch slope in the shopping mall area, what the <br />new planting beds will look like and what the plan is to help keep mulch off of walking areas, <br />and adding some 4” conduits from the planting beds to the back of the concrete walk for possible <br />future lighting of trees within the beds. Additional estimated construction cost for these conduits <br />is $2,500. <br /> <br />Bid Alternate 1 (all brick pavers) consists of salvaging and reinstalling the existing brick pavers. <br />The improvement project will allow for corrections of areas which have settled and will include <br />improved paver restraints that will not pop-out over time. Pedestrian ramps will be replaced with <br />concrete to ensure accessible access for all users. The challenge with brick pavers is that it is <br />difficult to compact the subgrade evenly around the several streetscape elements which exist <br />along Little Canada Road. This may result in pavers shifting again creating an uneven walking <br />surface, an edge for plow blades to catch on, and may require replacement or repairs again in 15- <br />20 years. <br /> <br />Bid Alternate 2 (all concrete) will utilize colored and stamped concrete in place of the existing <br />pavers. This eliminates the concern of the pavement settling unevenly over time. There are, <br />however, long-term maintenance concerns with this option; colored concrete fades over time and <br />the exact color is difficult to match while making repairs. This option is also about 10% higher in <br />construction cost. <br /> <br />BID TO ENGINEERS ESTIMATE: <br />An engineer’s estimate was prepared in June. This engineer’s estimate compares to the recommended <br />base bid as follows: <br /> Engineer’s Estimate <br />(June 2019) <br />Low Base Bid <br />Recommendation <br />Construction $550,623.00 $525,020.00 <br />Engineering $99,112.,14 $96,000.00 <br />Contingency $27,531.15 $27,531.00 <br />Total $677,266.29 $648,551.00 <br /> <br /> <br />