1963 825 Ordinance - Laserfiche WebLink

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of trench shall be ?zot more than two feet (2 ~) p;reatcr than diameter of pipe except by consent of the Engineer. (b) pTpg I~'OUATD_1`rI01V: i.inless otheruvise specific;d the trench shall have a flat 'oottom conforming to grade, so that the barrel of piI%e shall have full bearing throughout itsleng th. If subgrade is soft and cannot support the pipe the objectionab7.e subgl~ade material shall be removed and replaced ti^rith ;suitable fine earth or bank sand. thoroughly compacted, all at Contractors cost. -any part of the trench excavated be].oiw grade sha11 be corrected ~^~~ith approved ria~bc:r:i_a.l thoroL~.~;hl~T compacted.. (c) PIPE CL'~.:1R.~11`TCE Tid i~.OC li: Ledge rock, boulders, tarp;e stones and shale shall be removed -to a clearance of at least six inches (6") below all. parts of tl~e pire~ valves or fi~tt~~..r?gs ~ and to a clear .^~2dth of six inches (6") on each s~_de of all concrete pipe and a~opurtenances, and. nine inches (9") of cast iron and. steel pipe and appurtenances shall be pro- vided. ;excavations belovr sub~;rade sl_a11. be refilled to subgrade ti^rith fine earth or bank sand thorouz;hl.y compacted, all at Contractor's cost. (d) 13L~1STIid(i t'B.OCEDUP~ : Blasting for exravatio~ . Zar1:Ll be permitted only after securing the v:~itten apl:lroval from the ~n:i na~-r 1^d110 shall f~_x the time d.urinr; ~-rhich blasting may be done a.nd ~rahat pro, E?ct~.ve measures must be used to insure safety to adjacent properi;i~ e The ~o,t,ra.ctor shall be responsible for any damage resulting from -tx~a.z~; ~~rting~ ,~-„o:c•age or use of explosives in blasting. The Contractor's metho7. c:f proc~•d~.tre relati~Te to blasting sha11 conform to State .laws and to local i~.iuniripal ordinances. (e) BELL HGL~~,S 1~1;~I1Lt~D: Bell holes of ample dimensions shall be dug in earth trenches at each joint to permit the jointing to be made properly. lldequate clearance for properly jointing pipe in rocl: or shale trenches shall be :provided at bell boles. (f.) BTVIC~ETi .1~1) SII~JiJT~~B '1"izr~TCi-iES: t~:llerever necessary to prevent caving, excavations in sand., ;ravel, sandy soil, or other unstable material shall be adequately sheeted and braced. ~:lhere sheeting and bracing are used, the trench 1°rldth shall. be increased accordingly. Trench sheeting shall. remain in place until pipe has been laid, tested for defects ar~i repaired, if necessary, and the earth around it compacted to a depth of one foot (l~) over the top of the pipe. Sheeting left in trench by order of3nF;ineer ,,rill be paid for at price bid per thousand ( Tvi) feet . (g) pF;~lIiVE1GE: The Contractor shall, tivhen ordered by Inspector, construct tight b~,llcheads across trench and provide pumps suitable for the removal of any water which may be encountered or ~r~hich may accumulate in the trenches. In no case shall trench water be permitted to rise upon or flOFr through tl~.e t,.rater main. (h) EXISTIi~TG ':i~l^1;;1~. COU73.SES: In open vrater courses, ditches or pipes encountered during; the: progress of the ~^ro.rk, the Contractor shall at his o~ron expense provide for the prctection and securing of a continuous f1cUr in such courses or pipes and shall repair any damage that may be done by reason of them. (i) 1?,OkD Si1R?LCES, CUFu3Il~TG, DRIVE1711YS ~~ID SL~);l~~r~LKS: ^1he Contractor shall remove all pavements, road surfaces, curbing, driveways and side- -5-