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0 <br />� <br />�03.300 Continued <br />� 300-9 <br />maina, no extra compensation Will be made for this eonstruetion. <br />Nowever, fittings will be a unit of ineasurement and payment. <br />' Watermains crossing house sewers stiorm s <br />shall be laid to provide a separation oF ateleastrl8ainehes between the <br />� bottom of the watermain and the top of the aeWer� When local <br />oonditions prevent a vertieal separation as described, the following <br />aonstruQtion shall be used; <br />� <br />� <br />(1) SeHers pasaing over or under xatermain$ ah�xll be oonstrueted of <br />materials equal to watermain atandards of aonatruetion. <br />(2) Watermain passing under sewers shall, in addition, be �rotected <br />by providing: <br />� (a) a vertical separation of at leaat 1$ inches bstWeen th� <br />bottom of the seNar and the top of the watermain; <br />(b) adequa�e 9truotural suppart for the sewers to prevent <br />� excessive defleotion of joints and settlirig or� and <br />bre�lcing the uatermains; <br />� <br />� <br />� <br />� <br />I�_J <br />L_ J <br />� <br />LJ <br />�� <br />� <br />(c) that the length of WatBr p�pe be eentered at the poiat of <br />eros�ing so that the joints will be equidi�iant and as i'a.r <br />as possible from the sewer. <br />Watermains shall be laid at least 10 feeL horizontally from any <br />sanitary sewer, ator� 9ewer or �eWer manhole, �henever possible, When <br />local conditians preven;t a horizoa�tal �epara�ion QP 10 feet, a <br />W$�er�ain m�y be laid closer ta a aior� or sar,�tary se�►er providsd <br />that� <br />(1) The bottom �f tR�� aatermain is at lea9t 18 inahas above the t�p <br />ot' the gauer; <br />(2) Where this vertical s�paratian cannot be abtain�d, th� seWer <br />�hall be con�Eructian of m�terial� and with jaints thgt ar� <br />equival�flt to watermairt at�ndar�ds of construction and shall be <br />pressure tested �o assure aat�srti�htness prior to backfilling. <br />No valve or ether e�ntrol oa the exiati�g �yste� sha21 be opea�ated for <br />any purpose by the Contr�etor without approval by th� Engie�eer, a�d all <br />eonsuraera af�'ected by suoh op�raCion sball b� aoLified by tha Owner at <br />least one hour before tha operati�on and be advised of the probabl� time <br />wh�n service �hall be re�t4red. <br />The Contr��Cor shall give the W�ts� A�partment one da�r natice aR�e� it <br />is necessary to take a watermain out of servi�e, Di��pGiQn flf �ervice <br />sha7.1 b� during the time oi' day when the least inaonvenienca will be <br />caused to the custoe�er. <br />0 <br />