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' 2. Coordinate the installation of Solid Piped Drainlines per the requirements of <br /> Section 33 34 00 - Storm Drainage Utilities. <br /> 3. Upon approval of the Engineer of installation of Solid Piped Drainlines, install an <br /> ' additional single lift of Solid Piped Drainage Bedding in a thickness allowing a <br /> minimum 4"compacted cover over crown of Solid Pipe. <br /> 4. Complete installation with specified native soils or approved Common Fill <br /> ' compacted to design sub-grade. <br /> 3.10 PAVEMENT BASE BACKFILL: <br /> A. Provide a minimum 6" compacted lift of specified Pavement Base Aggregate true to the <br /> elevations either described or implied in the Contract Drawings or as required to match <br /> adjacent existing pavements or landscapes, and a minimum of 4" beyond the horizontal <br /> layout lines of pavement or as indicated on the Contract Drawings. <br /> ' B. Pavement Bases shall be graded such that upon approval of compaction, the surface of <br /> the Base is at the correct elevation to receive pavement to design finished grade. <br /> 3.11 BACKFILL OF OVER-EXCAVATIONS: Backfill over-excavations with approved excess <br /> native soils or approved Common Fill true to the design elevations per the Contract Drawings <br /> unless otherwise directed. Install and compact to specified rates in lifts not exceeding 8" of loose <br /> material. <br /> 3.12 STRUCTURAL SOIL BASE FOR REINFORCED TURF: For all areas scheduled to receive <br /> Reinforced Turf Paving; <br /> A. Sub-grade Preparation: On a rough native soil grade prepared to the design depth, <br /> establish a uniformly sloping sub-grade of a minimum 2 " lift of Type 17 Mineral <br /> ' Aggregate composed of Bank Run Gravel, compacted to 95% maximum dry density. <br /> Install geo-textile continuously over the compacted sub-base. <br /> ' B. Following the Engineer's inspection and approval of the prepared sub-grade and geo- <br /> textile placement, begin placement of the 1:1 blend of the Type 2 Structural Aggregate & <br /> the 50/50 Sand/Organic Amendment Mix to Y2 of the design cross section depth <br /> (minimum 4" depth). Place Structural Aggregate & Sand/Organic blend loosely and <br /> ' uniformly over the area to be covered. Water-settle and/or roll as necessary to achieve <br /> the specified compaction level and desired grades. After approval of this lift, continue <br /> with the installation of the upper Y2 of the design cross-section with the same blend prior <br /> to final compaction. Prepare the grades for installation of the reinforced turf grid <br /> products by water settling, raking and rolling to a minimum 90% dry density, as required <br /> and specified. <br /> ' C. Install the Reinforced Turf Paving Grid (as specified above) per manufacturer's <br /> specifications and recommendations. Fill all voids in the Grid with the 50/50 <br /> Sand/Organic Amendment Mix, making sure all voids are filled and compacted flush <br /> with the top of the grid. <br /> ' D. Prepare for and install Hydroseeding or Sodding per Sections 32 92 19.16 or 32 92 23. <br /> 3.13 DISPOSAL OF EXCESS AND WASTE MATERIALS: <br /> i <br /> Legion Golf Course Stormwater Detention Project December 1, 2017 <br /> ' WO#UP3620 31 00 00 -9 <br />