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Remove and Dispose of 24 inch Concrete Pipe <br />Description of Change: The project inspector directed the removal and disposal of 48 <br />feet of 2Z[ inch reinforced concrete pipe wtfich crossed north to south across 137th <br />Avenue. <br />Justification of Change: This was existing storm water pipe which is no longer required. <br />Removal was ordered to prevent material from migrating into the pipe and possibly <br />causing settlement of the road. <br />Cost of Change: The cost of this additional work has been requested as 48 feet of <br />removal and disposal at $I0 per foot for a total cost of $480. <br /> <br /> Crane Rental Due to Modification of Water Quality Treatment Structure <br />Description of Change: The single unit system installed was heavier than the bid unit <br />and required a crane rental for installation. <br />Justification of Change: The plans called for the installation of a water quality <br />treatment structure to be placed in 137th Avenue and specified tkree acceptable <br />manufacturers or equal for the water quality structure. Because of the congested nature of <br />this intersection with other existing underground utilities it became apparent that only a <br />single structure type of water quality treatment unit could be installed without costly tight <br />sheeting or installation safety implications. The unit bid consisted of a two manhole <br />treatment system of which each component manhole could have been installed with the <br />contractor's equipment. <br /> Cost of Change: The cost of the crane rental was a lump sum amount of $I,300. <br /> <br />Original Contract Price: <br />Previous Change Orders: <br />Change in Contract Price due this Change Order: <br />Total Contract Price including this and previous change <br />Orders: <br /> <br />$247,795.05 <br /> NA <br /> $8,117.00 <br /> <br />$255,912.05 <br /> <br />This document will become a supplement to the conti'act and all provisions will apply <br /> <br />hereto. <br /> <br />Recommended: <br /> <br />Accepted: <br /> <br />Engineer Date <br />Contractor Date <br /> <br />39 <br /> <br /> <br />