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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 /> performance and no visible damage(apply 16,000 pound point load for 2,000,000 cycles). <br /> The FRP frame and cover shall be provided with a five (5) year guarantee. <br /> 6.12 REMOVE EXISTING MANHOLE STRUCTURES <br /> Removal of existing manholes shall be accomplished in accordance with the project plans, <br /> City of Santa Ana Standards and Design Criteria, the applicable provisions of Section 306 <br /> of the Standard Specifications, and these Special Provisions. <br /> The following is added to the third paragraph of Subsection 306-5 of the Standard <br /> Specifications: <br /> The top six inches of bacllled subgrade shall be compacted to a relative <br /> compaction of 90%. <br /> 6.13 ABANDON EXISTING SEWER MAIN <br /> The Contactor shall abandon existing pipes per Section 306-5 of the Standard <br /> Specifications, as specified herein, and as shown on the construction plans. <br /> The Contractor shall provide traffic control as required and approved by the agency having <br /> jurisdiction. Under no circumstances shall the abandonment take place before existing <br /> sewers and manholes are out of service and all flow directed to the new or alternate pipes. <br /> The abandon pipes shall be filled with sand cement slurry 1-sack (941bs) of concrete.In <br /> lieu of slurry, the contractor may use low density cellular concrete, Elastizell (EF) or <br /> approved equal. <br /> The Contractor shall demonstrate that the pipe to be abandoned has been completely filled, <br /> without voids,by providing volume calculations for each placement of grout and materials <br /> strength tests as required by the City. <br /> The Contractor is responsible for the selection methods and material to be used. Pipe <br /> abandonment shall be coordinated with the construction sequence. Appropriate plugs shall <br /> be installed by the Contractor, and grout shall be injected in an upslope manner to remove <br /> trapped air. Samples of the outgoing water(at the exit end)shall be made until the existing <br /> grout mix is observed to be similar to the grout being injected at the inlet end.The grouting <br /> plan,and grout mix design shall be submitted to the Engineer for review and approval prior <br /> to commencement of work. <br /> 6.14 ABANDON EXISTING MANHOLE STRUCTURES <br /> The contractor shall abandon existing manhole structures in conformance to the Standard <br /> Specifications Section 306-5, as specified herein, and as shown on the construction plans <br /> and per City of Santa Ana Standard Plan No. 1209. <br /> 99 <br />