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Section 02210 <br /> EXCAVATION,BACKFILLING,AND COMPACTION FOR UTILITIES <br /> E. Vehicular Access <br /> 1. Barricades, traffic control signs, cones and flagmen shall be provided to re-route <br /> traffic and to protect all open trenches, materials, and equipment. Barricades and signs <br /> shall be marked by low-intensity flasher lights for night traffic. Traffic control shall <br /> be in strict accordance with the Special Provisions Section SP-26, TRAFFIC <br /> CONTROL. <br /> 2. All trenching, pipe installation, and backfilling in vehicular traveled areas shall be <br /> conducted in a manner to cause the least interruptions possible to vehicular access. <br /> The Contractor shall remove all surplus material away from the jobsite as it is <br /> produced. Backfilling and paving operations shall progress as fast as trenching and <br /> pipe installation will permit. <br /> 3. Where excavated lines cross streets, all lanes shall be opened to traffic immediately <br /> after the pipe has been installed in the trench. Construction time in these areas shall be <br /> kept to a minimum. Steel plate coverings shall be placed over the trench to permit <br /> passage of vehicular traffic. <br /> 4. Where excavated lines are parallel with street alignments, at least one lane must be <br /> maintained at all times for vehicular traffic. At such times as passage is restricted to <br /> one lane, flagmen shall be provided by the Contractor. <br /> F. Open Trench <br /> The Contractor shall not leave trenches open during hours when the Contractor is not <br /> actively working. All trenches shall be backfilled at the end of the day or left shored and <br /> plated. <br /> G. Trench Settlement <br /> The Contractor shall monitor for trench settlement and heaving. The Contractor shall repair <br /> and reconstruct trench and pavement due to settlement as directed by the Construction <br /> Manager at no cost to the District. <br /> **END OF SECTION** <br /> Walnut Grove Sewer Project(Conformed) 02210-11 SA0160401 <br /> March 2008 n:Asa016040I specs\we contorm\div 2\02210.doc <br />