80-08 AMENDING CITY CODE CHAPTERS 35 AND 37

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by the contractor. When traffic congestion occurs in spite of all precautions , the contractor shall be responsible for request- ing police assistance by calling the Police Department. On main thoroughfares and in congested districts , sufficient traffic lanes shall be kept open at all times to permit sub- stantially normal traffic. Unless this can be accomplished, work shall be done only during the period between 9 :00 A.M. and 4 :00 P.M. or between midnight and 7 :00 A.M. as the Director of Public Works may designate. In case of an emergency occurring in any important thoroughfare, the permittee must notify the Police Department and the Fire Department, immediately. When excavation work requires a street closure, the , contractor shall notify the Engineering Division secretary at least 24 hours in advance of the intended closure. 7. RESTORATION PROCEDURES The City reserves the right to .restore pavements in any and all cases. No permittee may make any permanent restoration, partial or complete, unless specific permission has been given by the Director of Public Works. When an opening lies on a paved surface or traveled roadway, the permittee shall provide a temporary bituminous concrete surface as specified under "BACKFILLING" . When permission to make permanent restoration has been granted to the permittee, and when the backfill procedure is satisfactorily followed, permittee may elect to perform permanent restoration immediately, in which case no temporary restoration will be required. All asphalt mixtures used shall correspond to one of the mixtures specified in the latest edition of the Standard � Specifications of Road and Bridge Construction prepared by the Department of Transportation of the State of Illinois. Rolling will be required for all openings. Extreme care shall be taken in opening concrete pavements to prevent damage to the adjoining pavement. Unless specific approval is obtained from the Director of Public Works, pavement shall be opened with the use of pneumatic drills outlining the cut, followed by the use of paving breakers.