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DUNKELBERGER • Fort Lauderdale <br /> EXHIBIT A * Port Saint Lucie <br /> engineering & testing, inc. Sarasota <br /> www.dunkelberger-engineering.com . West Palm Beach <br /> r.. <br /> Indian River County May 15,2013 <br /> 1801 27°1 Street Project No. PSL-09-3054 (14.1) <br /> Veno Beach,Florida 32960 <br /> Attention: Mr. Christopher J.Kafer,Jr. P.E....via e-mail (ckajer@ircgov.com) <br /> County Engineer <br /> Subject: Construction Materials Testing and Inspection Services <br /> CR 512 Resurfacing from Roseland Road to Easy Street (East Bound Only) <br /> Indian River County,Florida <br /> Dear Mr. Kafer: <br /> INTRODUCTION <br /> As requested, Dunkelberger Engineering &Testing,Inc. (Dunkelberger)is pleased to submit this <br /> proposal for Construction Materials Testing and Inspection Services during construction <br /> activities at the subject project in hidian River County,Florida. <br /> SCOPE OF SERVICES <br /> The subject project will include the reconstruction of the base course and asphaltic concrete <br /> structural courses of the eastbound lanes of CR 512 from Roseland Road to Easy Street. The <br /> project length is approximately 8,850 lineal feet (1.68 miles) and with construction duration of <br /> 25 days. <br /> The reconstruction (resurfacing) will involve building an 8'/2-inch thick Rill-depth reclamation <br /> (FDR) base course, a 1'/2-inch thick asphaltic concrete (AC) structural course, and 1-inch thick <br /> AC wearing course. The purpose of our work is to provide quality assurance (QA) testing and <br /> inspection to check the conformity of the materials composition and their construction with the <br /> project specifications. <br /> Based on our review of the project plans and specifications, we envision that our work will <br /> involve the following. <br /> Testing of the FDR Base Course <br /> • FDR mix design—Review and evaluate the mix design developed by the Contractor for <br /> its design approach and procedure. <br /> • Full Sieve Analysis test on the virgin materials before injection of emulsion at a <br /> frequency of 1 test every 1000 linear feet per lane(total of 18 tests). <br /> • Maximum Density (Proctor) tests of the in-place FDR base materials at a frequency of <br /> 1 test every 1000 linear feet per lane(total of 18 tests) <br /> • In-place density tests at a fiequency of 1 test per 500 linear feet per lane (total of 36 <br /> tests). <br /> State of Florida Board of Professional Engineers Authorization No.6876 <br /> Toll Free (877)643.6832 <br /> 97 <br />