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CITY OF SANTA ANA <br /> SPECIFICATIONS <br /> PROJECT NO.: 25-6030 <br /> TRAFFIC SIGNAL INSTALLATION AT SEGERSTROM AVENUE AND ROSEWOOD <br /> AVENUE <br /> 5.00 SPECIAL PROVISIONS - IRRIGATION, LANDSCAPING, & MAINTENANCE <br /> PERIOD NOT USED <br /> 6.00 SPECIAL PROVISIONS - SANITARY SEWER IMPROVEMENTS <br /> 6.01 OPEN TRENCH OPERATIONS, EXCAVATION, BEDDING, AND BACKFILL <br /> Open trench operations, excavation, bedding and backfill shall conform to the applicable <br /> provisions of Section 306 of the Standard Specifications and these Special Provisions. <br /> All trenches shall be base paved with hot mix or covered with steel traffic plates recessed <br /> and flushed with existing pavement at the end of each working day. No temporary <br /> pavement will be allowed. <br /> Trenching operations shall not be allowed on more than one street at any time. Work shall <br /> not be allowed in more than one intersection at any one time. <br /> The third paragraph of Subsection 306-1.1.1 of the Standard Specifications is hereby <br /> deleted and replaced as follows: <br /> Excavation shall include the removal of all excess excavated materials and all water <br /> and materials of any nature which interfere with the construction work. <br /> All pavement removals shall be sawcut unless, approved otherwise by the Engineer prior <br /> to commencement of work. <br /> All removed pavement and excess excavated material shall be immediately disposed of off <br /> the project site at a legal dumpsite at the Contractor's expense. <br /> Pipe bedding: <br /> Unless otherwise specified or shown on the plans,for VCP sewer the pipe bedding material <br /> shall be' " crushed rock; if installed in high groundwater conditions the bedding material <br /> shall be %2" crushed rock wrapped in geofabric (Mirafi 140N or approved equal). For PVC <br /> and ductile iron pipe sewers, the pipe bedding material shall be imported SE-30 sand. <br /> Pipe Zone Backfill: <br /> Unless otherwise specified or shown on the plans, for VCP sewer, the pipe zone backfill <br /> material shall be crushed rock; if installed in high groundwater conditions the pipe zone <br /> backfill material shall be A" crushed rock wrapped in geofabric (Mirafi 140N or approved <br /> equal.) For PVC and ductile iron pipe sewers, the pipe zone backfill material shall be <br /> imported SE-30 sand. <br /> Trench Zone Backfill: <br /> The trench zone backfill shall be Class II aggregate base. <br /> 85 <br />