02-28-2019
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TECHNICAL ADVISORY GROUP RECOMMENDATION <br /> <br />TAG_CONTRACTINGRECOMMENDATIONFORM_WP-42E_IBI_CO-01_2019-0214 3 <br />b. The Engineer reviewed the quantities and Contractor direct and indirect cost proposals for these <br />changes and found them to be reasonable for the proposed scope of work. <br />4. Foundation Debris Removal: A larger piece of concrete was encountered at the Lift Station excavation <br />that was not shown on the Contract Documents. The Contractor proposed a lump sum cost of <br />$1,280.00 to remove and dispose of it off‐site. <br />a. The Engineer agreed that this was an additional project cost, reviewed the Contractor’s <br />proposed price, found it to be reasonable, and directed the Contractor to remove and dispose of <br />it off‐site. <br />b. This change adds the following bid item: <br />i. Bid Item 0178, Remove Building Foundation CO‐1: lump sum quantity of 1.0 LS at the <br />Contract Unit Price of $1,280.00 per LS for a price increase of $1,280.00. <br />5. Gatewell Structural Backfill: The Contractor’s selected method to support the walls of Gatewell <br />excavation was a cofferdam. The cofferdam was design by the Contractor and they recommended CLSM <br />backfill from elevation 873.15 to 884.00 and structural clay from elevation 884.00 to 900.00 to backfill <br />the space between the finished exterior Gatewell wall and the cofferdam. The Engineer’s design was <br />based on an open cut excavation and did not include CLSM and structural clay bid items to backfill the <br />space between the finished exterior Gatewell wall and the cofferdam. <br />a. The Owner reviewed and agreed that the cost of these items should be added to the Contract <br />Price. <br />b. The Engineer determined the quantities of CLSM and structural clay and agreed with the <br />Contractor’s proposed unit prices. <br />c. This change adds the following bid items for Gatewell structural backfill material at a cost of <br />$52,025.50: <br />i. Bid Item 0179, Gatewell Structural CLSM Backfill CO‐1: lump sum quantity of 1.0 LS at <br />the Contract Unit Price of $26,885.50 per LS for a price increase of $26,885.50. <br />ii. Bid Item 0180, Gatewell Structural Clay Backfill CO‐1: lump sum quantity of 1.0 LS at the <br />Contract Unit Price of $25,140.00 per LS for a price increase of $25,140.00. <br /> <br />
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