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DUHKUBERGER <br />engineering & testing, Inc: <br />AlrerraCOn comPANY <br />March 2, 2016 <br />Indian River County EXHIBIT A <br />1801 27th Street <br />Vero Beach, Florida 32960 <br />Attention: Mr. Michael Nixon P.E.... via e-mail (mnixon@ircgov.com) <br />Roadway Production Manager <br />Subject: Materials Testing Services <br />Old Dixie Highway Resurfacing <br />IRC Project #1138 <br />Indian River County, Florida <br />Terracon Proposal No. PHB161007 <br />Dear Mr. Nixon: <br />Dunkelberger Engineering & Testing, Inc., A Terracon Company (Terracon) is providing <br />this revised proposal for Materials Testing Services during construction activities at <br />the subject project in Indian River County, Florida. As requested, we will perform the <br />field work on a unit rate (per test) basis instead of an hourly basis. As.such, a four test <br />minimum charge per trip to the site will apply. <br />A. PROJECT INFORMATION <br />The subject project will include the reconstruction of the base course and asphaltic <br />concrete structural course and shoulder widening of the of Old Dixie Highway from 71st <br />Street to CR 510. The project length is approximately 10,070 lineal feet (1.9 miles). The <br />contract duration is unknown to us at this time. <br />The reconstruction (resurfacing) will involve building a 9 -inch thick full -depth reclamation <br />(FDR) base course, a l Yz-inch thick asphaltic concrete (AC) structural course, and 1Y.— <br />inch thick AC wearing course. The shoulder widening will involve constructing a 12 -inch <br />deep stabilization (LBR 40) 3 to 4 feet wide on each side of the existing roadway. Also <br />associated with the project is installation of approximately 4,951 lineal feet (If) of drainage <br />pipe, 28 inlet structures, 144 If of box culvert, and construction of four concrete endwalls. <br />The purpose of our work is to provide quality assurance (QA) testing and inspection to <br />check the conformity of material composition with the project specifications. <br />Terracon Engineering & Testing, A Terracon Company 607 NW Commodity Cove Port St. Lucie, Florida 34986 <br />P [772] 343 9787 F [772] 343 9404 terracon.com <br />16 <br />