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EIndian River County Project # 0206 9 Page 2 Project No . PSL -07 - 2558 (BG 10 . 6 ) • In -place density testing during backfilling of storm drains and catch basins for each 1 ,& foot lift of backfill placed from the bottom of the structure up to an elevation corresponding to final grade . • In -place density testing during backfilling of the rigid and flexible pipelines . Below pavement areas , density tests will be performed at a frequency of one test location for each 200 lineal feet (or fraction thereof) of pipe . At each roadway or driveway crossing, density tests will be performed for each i400t lift of backfill placed starting at an elevation corresponding to the invert of the pipe and extending up to the final grade . • In-place density tests within the stabilized subgrade and base course layers at a frequency of 1 test for each 200 lineal feet of roadway . • In -place density tests at the subgrade for the approach slabs and sidewalks prior to concrete placement. • Sampling, slump testing, molding, transporting, curing, and laboratory testing to determine the compressive strength of concrete used for the bridge construction (pile caps , railings and approach slabs) as well as for the sidewalk and curbing. Laboratory Testing • Perform laboratory moisture- density relationship (Proctor) tests (AASHTO T- 180 and AASHTO T-99) and sieve analysis (percent fines) on the embankment fill and/or pipe backfill soils . • Limerock Bearing Ratio (LBR) tests for stabilized subgrade and base course within the roadways . Asphalt Paving & Testing • Asphalt plant observations and laboratory testing by a CTQP Plant Level I Asphalt Technician as the asphalt hot mix is produced at the plant . The laboratory testing will include extraction/gradation testing on selected asphalt samples . • Paving observations by a field technician to verify thickness , temperature , and mix design tickets during asphalt placement. • Coring of the asphalt at four (4 ) locations for subsequent laboratory testing to verify asphalt thickness and density . Engineering & Reporlin � • Engineering oversight during the construction to coordinate the aforementioned test program, make site visits , and attend progress meetings . ® ui lkelhergewV