Item 18 - Traffic Signal Installation at Segerstrom Avenue and Rosewood Avenue

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CITY OF SANTA ANA SPECIFICATIONS PROJECT NO.: 25-6030 TRAFFIC SIGNAL INSTALLATION AT SEGERSTROM AVENUE AND ROSEWOOD AVENUE 5.00 SPECIAL PROVISIONS - IRRIGATION, LANDSCAPING, & MAINTENANCE PERIOD...........................................................................................................NOT USED 6.00 SPECIAL PROVISIONS - SANITARY SEWER IMPROVEMENTS 6.01 OPEN TRENCH OPERATIONS, EXCAVATION, BEDDING, AND BACKFILL Open trench operations, excavation, bedding and backfill shall conform to the applicable provisions of Section 306 of the Standard Specifications and these Special Provisions. All trenches shall be base paved with hot mix or covered with steel traffic plates recessed and flushed with existing pavement at the end of each working day. No temporary pavement will be allowed. Trenching operations shall not be allowed on more than one street at any time. Work shall not be allowed in more than one intersection at any one time. The third paragraph of Subsection 306-1.1.1 of the Standard Specifications is hereby deleted and replaced as follows: Excavation shall include the removal of all excess excavated materials and all water and materials of any nature which interfere with the construction work. All pavement removals shall be sawcut unless, approved otherwise by the Engineer prior to commencement of work. All removed pavement and excess excavated material shall be immediately disposed of off the project site at a legal dumpsite at the Contractor's expense. Pipe bedding: Unless otherwise specified or shown on the plans, for VCP sewer the pipe bedding material shall be 3/4" crushed rock; if installed in high groundwater conditions the bedding material shall be'/2" crushed rock wrapped in geofabric (Mirafi 140N or approved equal). For PVC and ductile iron pipe sewers, the pipe bedding material shall be imported SE-30 sand. Pipe Zone Backfill: Unless otherwise specified or shown on the plans, for VCP sewer, the pipe zone backfill material shall be 3/4" crushed rock; if installed in high groundwater conditions the pipe zone backfill material shall be 1/2" crushed rock wrapped in geofabric (Mirafi 140N or approved equal.) For PVC and ductile iron pipe sewers, the pipe zone backfill material shall be imported SE-30 sand. Trench Zone Backfill: The trench zone backfill shall be Class II aggregate base.