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2.4 FLARED END SECTIONS <br /> A. "Flared End Sections shall be of pipe manufacturers standard design and of the same <br /> materials as specified for the pipe. PVC pipe,however,shall use C.M.P. flared end <br /> sections. <br /> 2.5 OUTLET CONTROL STRUCTURE <br /> A. Construction shall be of precast reinforced concrete as detailed. Submit shop drawings <br /> for structure. <br /> 2.6 FILTER BLANKET <br /> A. Provide a 1" minus crushed rock material per ASTM#67 gradation <br /> 2.7 TYPE I GEOTEXTILE <br /> A. Use a Mirafi Type 140S,or approved equal. <br /> 2.8 RIP-RAP <br /> A. Provide quarry rock manufactured for use as rip rap;size shall be Class II per MnDOT <br /> spec. section 3601. <br /> PART 3 EXECUTION <br /> 3.1 EXCAVATION,TRENCHING AND BACKFILLING <br /> A. This part of pipe installation is covered in Specification Section 02220.Do not proceed <br /> without this complementing section. <br /> 3.2 ALIGNMENT AND PROFILE <br /> A. Curb Alignment: Exact curb locations shall be established by the General Contractor at <br /> locations of hydrants,curb inlets,and all other critical locations. <br /> B. Sewer Structure Locations: Use curb alignment reference as noted above and the sewer <br /> structure details to properly relate the casting to curb inlet. Structures in grass or other <br /> noncritical areas not specifically located on plans may be located by scaling from the <br /> drawings. <br /> C. Sewer line alignment: The minimum separation from water mains shall be 10 feet except <br /> where idicated different. All lines shall be straight and intersect the centers of structures. <br /> Bends will be allowed only if called for on the plans. <br /> ADDENDUM#1 <br /> 1607.001 -ORONO ICE ARENA(CP-2) Page 02720-3 <br />