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<br />\ <br />. <br /> <br />- <br /> <br />e <br /> <br />Table 3.1 <br />WATER LINE LOCATION WI.THlN A STREET RIGHT-OF-WAY <br /> <br />RIGHT-OF-WAY WIDTH & EXISTING OR 8" & SMALLER 12" & LARGER <br />ANTICIPATED CURB FACE TO CURB FACE (1) (2) (3) (I) (2) (3) <br />PAVING WIDTH <br />tOO-FOOT ROW ALL STREETS: S feet 7 feet <br />SO-FOOT ROW ALL STREETS: 7 feet 6 feet <br />60-FOOT ROW ALL STREETS: <br />MAJOR THOROUGHFARE: 44 feet 5 feet 5 feet <br />COMMERCIAL, SCHOOL, PARK: 40 feet 7 feet 6 feet <br />RESIDENTIAL: 27 feet 12 feet''') 12 feet(4) <br /> <br />(I) The numbers listed in the right two columns of Table 3.1 are the maximum allowable distance <br />from the right-ofway to the centerline of the proposed water line. <br />(2) The minimum distance from the right-ofway line to the centerline of the proposed water line shall <br />be 5 feet without a water line easement adjacent to the right-ofway. <br />(3) All distances arefrom back of curb. <br />(4) Investigate the possibility of afuture 35-foot curb face to curb face curb and gutter street section <br />to replace an existing street with roadside ditches and place the waterline the appropriate <br />distance behind the future curb. <br /> <br />D. Depth of Cover (See Table 3.2) <br /> <br />I. <br /> <br />Provide the minimum depths of cover shown in Table 3.2 from the top of natural <br />ground behind the curb for curb-and-gutter streets, or from the lowest elevation <br />of the nearby ditch bottom for roadside ditch street sections whichever is <br />applicable unless a variation is granted by the Director of Planning or his <br />designated appointee. <br />Whenever possible, changes in grade or alignment to clear utilities or <br />underground features should be accomplished by deflecting pipe joints. The <br />max.imum designed deflection shall be Y2 of the manufacturer's allowable <br />deflection. The use of regular bends for any change of grade shall not be <br />allowed except when prior approval is obtained from the Director of Planning or <br />his designated appointee. <br />Ifa depth greater than 8 feet or less than 4 feet to the top of the pipe is proposed, <br />a ductile iron or other comparable high hoop strength material pipe shall be used <br />and continued for all areas the depth of cover exceeds 8 feet or is less than 4 <br />feet. <br /> <br />2. <br /> <br />3. <br /> <br />a. All transitions from ductile iron pipe to approved water main materials shall <br />be constructed using electrically isolated flange joints. <br />b. Ductile iron or other comparable high hoop strength material pipe shall be <br />constructed in accordance with City of La Porte construction details for <br />water lines. <br /> <br />January 2004 <br /> <br />Water System Design Criteria Page 4 of 13 <br />