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CITY OF SANTA ANA <br />SPECIFICATIONS <br />PROJECT NO.: XX-XXXX <br />PROJECT TITLE <br /> <br />183 <br />Procedures. These welds shall be continuous, complete joint penetration butt joint <br />welds as required for rigid and watertight connections. If the removal of casing is <br />permitted, make proper provisions to prevent caving in of the earth surrounding the <br />casing. If it is necessary to abandon a bore hole, remedial measures shall be taken by <br />the contractor, subject to review by the Engineer. If required grade tolerance has not <br />been achieved, corrections in grade are to be made using casing spacers of varying <br />height per manufacturer’s recommendations. <br />K. MONITORING OF SURFACE MOVEMENT <br />Perform a pre-construction survey of road surface and landscaped median. <br />Contractor shall record horizontal coordinates and elevations. Document and record <br />the location of field measurements. Monitor movement of road surface and <br />landscaped median on a daily basis and provide results to the Engineer. Stop <br />operations if movement exceeds ¼ inch and immediately notify the Engineer. <br />L. GROUTING JACKED AND BORED STEEL CASING <br />Overcutting in excess of one (1) inch shall be remedied by pressure grouting the <br />entire length of the installation for all casings 24-inches in diameter and larger. <br />Pressure grouting around the periphery of the casing shall be performed with the <br />grout pressure never exceeding five (5) psi for the duration sufficient to fill all voids. <br />Should appreciable loss of ground occur during jacking or boring operations, <br />Contractor shall backpack all voids promptly. Fill all remaining voids upon <br />completion of operations: such filling or backpacking shall be with grout unless <br />otherwise approved. <br />M. CARRIER PIPE INSTALLATION <br />Entire length of casing shall be installed complete, inspected, and approved by <br />Engineer before any carrier pipe is placed therein. Repair defects in casing pipe or <br />leakage at joints. Casing spacers shall be installed per manufacturer’s <br />recommendations and in such a manner that electrical continuity will not occur <br />between casing pipe and carrier pipe. Check each joint makeup and pipe segment <br />prior to pushing carrier pipe segments into casing. Carrier pipe shall be PVC pipe <br />unless otherwise specified and approved by the Engineer, mechanical joints shall <br />have restraints. Casing end seals shall be provided at the end of the casing pipe after <br />installation of the carrier pipe. Casing end seals shall be installed per manufacturer’s <br />recommendations. <br />N. ANNULAR SPACE <br />The annular space within the casing shall be completely filled with air-blown sand to <br />support the carrier pipe and provide long time stability unless otherwise specified and <br />approved by the Engineer. Carrier pipe shall be pressure tested prior to filling casing <br />with air-blown sand. <br />505 E Central Ave <br />#B11/6/2024