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Remove and Dispose of 2,~ incli Concrete Pipe <br />Description of Change: The project inspector directed the removal and disposal of 48 <br />.fe~t of 24 inch re~uforcec~ concrete.pipe.whick crossec~ north tc south~across 1.37~'- , <br />Avenue. <br />Justification of Change: This was existing storm water pipe wh/ch is no longer required. <br />Removal Was ordered to prevent material fi-om migrating into the pipe and possibly <br />causing settlement oft.he road. <br />Cost of Change: The cost of this additional work has been requested as 48 feet of <br />removal and disposal at $10 per foot for a total cost of $480. <br /> <br />Crane Rental Due to Modification of ~Vater Quality Treatment Structure <br />Description of Change: The single unit system installed was heavier than the bid mt <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 three 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 ora two manhole <br />treatment system of which each component manhole could lave been installed with the <br />contractor's equipment. <br />Cost of Change: The cost of the crane rental was a lump sum amount of $1,300. <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 contract and ail provisions will apply <br /> <br />,. hereto. <br /> Recommended: <br /> <br />Cont~acter <br /> <br />-88- <br /> <br /> <br />