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INTER -OFFICE MEMORANDUM <br />DEPARTMENT OF PUBLIC WORKS <br />DIVISION OF ENGINEERING <br />TO: Linda M. Martin, Clerk <br />Board of Public Works <br />FROM: Scott Kreeger, Project Engineer <br />SUBJECT: Change Order No. 1 Project No. 118-305A <br />East Bank Sinkhole Repair <br />DATE: June 18, 2019 <br />..nncaee r vn rauia .uars oni v., em�rr�in; vrvra va ��ii�m�rw wu�rrv��.rr n�ra�arapm wirrrtm:rernia.aiw iii uunruwmm�atzwwmo� nvrrrm.Wonn a �n�rimvrvrv�wv,r ie�ir �i re u�rn.::r rr. a �� m��m� mcv��u no�aAvoavre� <br />On May 10, 2019, a Notice to Proceed was administered to Northern Indiana Construction Co., <br />Inc. (NIC) to begin work at the East Bank Sinkhole. The work included excavating the surrounding <br />area, installing a bulkhead within the structure, and filling it with 10 cubic yards of flowable fill. It <br />was determined during the design phase additional investigation would be necessary to fully <br />determine the scale of the underground structure for the sinkhole repairs. On May 13, 2019, NIC <br />proceeded with the investigation and discovered the dimensions of the underground structure <br />extended beyond the original plans. Engineering determined it necessary to increase the amount <br />of flowable fill to in order to fill the structure. In addition to the flowable fill, rebar to tie the curb into <br />the sidewalk and PVC for the conduit along the sidewalk were added to the project. <br />Please call with your questions (9245). <br />