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Utility Construction and Use of the Right-of-Way Policies and Procedures Manual Page 14 <br /> Construction of trench cuts on streets classified as Local shall comply with the Standard <br />Specifications and drawings RD300, RD300(A), with the addition of a minimum of 12” CLSM <br />backfill directly beneath the asphalt concrete. Prior to construction with pre-authorization from <br />the Utility Inspector, compacted crushed aggregate backfill may be substituted for CLSM. <br />Additional restoration requirements may be required by the Utility Inspector and will be included <br />in the permit conditions or may be determined at any time during construction depending on <br />specific site conditions. <br /> Trench cuts on streets with a paved surface that is classified as either a Collector or Arterial shall <br />comply with the standard specifications and drawings RD300 and RD300(A) with the addition of <br />a minimum of 12” CLSM backfill directly beneath the asphalt concrete. Prior to construction with <br />pre-authorization from the Utility Inspector compacted crushed aggregate backfill may be <br />substituted for CLSM with a requirement of compaction testing. The permittee shall be <br />responsible for all costs associated with testing. <br /> Pavement restoration for vacuum-type excavation shall be a minimum of 24” x 24” square. Core <br />cuts 8” diameter (Preferred) or less may be filled with an approved material. <br /> Unless otherwise approved by the Utility Inspector, pavement cuts shall be made parallel or <br />perpendicular to the centerline of the public way. <br /> Whenever pavement removal within public streets would cause the pavement to be cut within 3 <br />feet of an existing edge, curb, score, joint, or crack, the existing pavement shall be removed to that <br />edge, curb, score, joint, or crack. Undermined street sections shall be removed. <br /> Trench compaction shall comply with City Standard Specifications. Backfill lifts shall not exceed <br />12” in depth. Trenches less than 3’ in depth shall be backfilled above the pipe zone with CLSM. <br />Backfill compaction in trenches deeper than 3’ shall be tested by an independent facility. Full- <br />depth CLSM backfill (above the pipe zone) in trenches deeper than 3’ shall not require testing. <br />The Utility Inspector may direct field testing of compaction when deemed necessary. The <br />permittee shall be responsible for all costs associated with testing. <br /> Trench excavation areas within the travel way shall be temporarily surfaced at the end of each <br />workday with a hard surface, i.e., cold-mix, hot-mix, or steel plate. Steel plates shall not be <br />allowed in bike lanes. Disturbed areas outside of the street shall be backfilled and/or protected. <br />The permittee shall monitor and maintain temporary surfaces. <br /> After final paving compaction, all joints between new and existing paving shall be sealed with hot <br />placed joint filler meeting City specifications 02440.30 and section 07746 and sanded to prevent <br />pickup and tracking. <br /> In addition to sealing the joints, the contractor shall fog seal the entire surface of the trench cut per <br />section 00705 of City specifications. <br /> Permanent surfacing shall be completed with 60 days of project conclusion. <br /> The permittee shall notify the Utility Inspector at least 1 full business day before any permanent <br />surface restoration is to be made by the permittee's own staff or that of contractor working for the <br />permittee.