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4415 Old Aiyort Road <br /> �„ PO Box 388 <br /> Cabarrus <br /> Concord, NC 28026-0388 <br /> `I tounty Schools (704) 262-6219 <br /> A# (704) 262-6211 (fax) <br /> December 5, 2016 <br /> Jonathan Marshall <br /> Asst. County Manager <br /> Cabarrus County <br /> Re: Change order for Rock Removal at Royal Oaks Elementary <br /> Dear Jonathan, <br /> During the site work phase at Royal Oaks Elementary, we encountered mass rock <br /> which was located right under the 4th grade wing of the existing school, but it also was <br /> in an area of the large retaining wall excavation. We have enough in the contract to <br /> cover the total, however it will wipe out most all of the allowances and it is not good to <br /> do that this early in the project. We are recommending using all the site related <br /> allowances for unsuitable soils, trench rock, bulk rock excavation, and borrow to cover <br /> some of the extra costs, but would recommend tapping into the contingency funds to <br /> cover the remaining costs. Here is a description of the change order requests we are <br /> planning on placing on the BOE agenda and wanted to ask if you are in agreement with <br /> the use of contingency for the remainder of the funding required. <br /> ROES Change Order <br /> The general contractor encountered rock while digging footings in the transition area of <br /> the lower building. The rock (1 ,006.4 cubic yards (cy)) was verified and quantified by our <br /> materials testing consultant. The initial cost for its removal was $176,120; however, we <br /> negotiated to a sum of $150,960. The contract sets the unit rate for the removal of mass <br /> rock and incorporated an allowance at $15,000. Additional site work related allowances <br /> include Unsuitable Soil (Bulk) at $11 ,000, Offsite Borrow at $13,500, Unsuitable Soil <br /> (Trench) at $6,600 and Trench Rock at $17,500. Staff recommends utilizing each of <br /> these allowances to reduce the change order amount by $63,600. Therefore, the <br /> change order amount is $87,360. The approval of this change order will be subject to <br /> the county's approval for the use of county held contingency funds in the amount of <br /> $87,360. <br /> Thank you, <br /> G. Tim Lowder, PE <br /> Executive Director for Operations <br /> Cabarrus County Schools <br /> Attachment number 1 \n <br /> G-3 Page 165 <br />