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Kevin Lindley <br /> From: David Townsend <dtownsend @hobbsupchurch.com> <br /> Sent: Friday, November 08, 2013 12:47 PM <br /> To: Kevin Lindley <br /> Subject: DDDDDDDRAFT please call before I finish <br /> Kevin,following several discussions, I am determining best"ESTIMATE" of the rock for the sewer lines S-3 &S-1. I have <br /> made these two assumptions to accomplish this:first,the existing soil conditions on Lines S-1 V S-3 will be the same for <br /> all work.They appear to be the same however the rock is buried therefore they seem to be very consistent. Secondly, <br /> the actual ratio of rock encountered during excavation of the recently constructed line and the future line work will be <br /> consistent.The topography of the two lines appear similar supporting this fact. The contractor has install sewer <br /> line from Sta 0+00 to MH#53 (approx.4600 Lin. Ft.)and "hit" 6350 Cu.Yds. of rock. Based on the above statements, <br /> 4500 Cu.Yds.of rock will be needed to complete Line S-3.Also the construction of Line S-1 will need approximately 6000 <br /> CU.Yds.of rock.This could result in amount totallingf 17,000 Cu.Yds.of rock for the entire project.The original <br /> Construction Bids included 6338 Cu.Yds. of rock @ $60.00 per Cu.Yd.Therefore,there is a possible change order <br /> amount of 10,662 Cu.Yds. of rock for the entire Project. <br /> David Townsend III, PE <br /> Hobbs, Upchurch &Associates, P.A. <br /> PO Box 1737 <br /> 135 W. Connecticut Ave. <br /> Southern Pines, NC 28388 <br /> Office:910.692.5616 <br /> Fax:910.692.7342 <br /> Mobile:336.257.0274 <br /> dtownsend @hobbsupchurch.com <br /> dtownsend55 @triad.rr.com <br />