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Proposal for Materials Testing Services Page 2 Old Dixie Highway Resurfacing ■ Indian River County, Florida March 2, 2016 ■ Terracon Proposal No. PHB161007 B. SCOPE OF SERVICES Based on our understanding of the project schedule and review of the project plans and specifications, we envision that our field sampling/testing services will be required on a periodic or as needed basis over the duration of the project. More specifically, our work will involve the following. Earthwork — Embankment and LBR 40 Shoulder Stabilization • Laboratory Proctors (AASHTO T-99 and T-180) to determine maximum density of the soils used for embankment and pipe backfill. • In-place density tests of embankment at a frequency of 1 test per 500 If. • In-place density tests of pipe backfill at a frequency of one test per 500 If (or fraction thereof) for each lift of backfill placed. • Limerock Bearing Ratio (LBR) tests of the in-place LBR materials for the Stabilized Shoulders at a frequency of 1 test about every 2000 linear feet or 5 LBR samples on each side of roadway (total of 10 tests). • Thickness verification of completed 12" LBR Shoulder Stabilization. • In-place density tests of the LBR Shoulder Stabilization at a frequency of 1 test per 500 linear feet each side of roadway (total of 42 tests). FDR Base Course • FDR mix design — Review and evaluate the mix design developed by the Contractor for its design approach and procedure. • Full Sieve Analysis test on the virgin materials before injection of emulsion at a frequency of 1 test every 1000 linear feet per lane (estimated total of 22 tests). • Maximum Density (Proctor) tests of the in-place FDR base materials at a frequency of 1 test every 1000 linear feet per lane (estimated total of 22 tests) • In-place density tests at a frequency of 1 test per 500 linear feet per lane (estimated total of 42 tests). • While on-site the technician will communicate with designated County and Contractor personnel so that items of concern or identified deficiencies can be immediately corrected. • Verification of completed FDR base course — Review and evaluate the verification testing plan as well as the testing results as provided by the Contractor. • As a contingency, we have listed our laboratory testing rates for FDR Mix Design Verification and Resilient Modulus testing in case the contractor's QC laboratory cannot provide these services. llerracon 1 17