(a) The junction of two or more sewers shall be made in strict conformance with the drawings. New sewer connections with old existing sewers shall be made within a manhole. Where a manhole exists, at a point of connection of new and old sewers, it shall be repainted, and any loose bricks or blocks in the walls of the old existing manhole shall be relaid. Where no old manhole exists at the point of connection, a new manhole shall be constructed of the size and type shown on the drawings.
(b) Connections of new sewers to existing sewers, when encountered in construction and not shown on the drawings, shall be made where ordered by the Engineer. Such connections shall be made within a manhole, except for house sewer and drain connections.
(c) When connections are made with sewers carrying sewage or water, special care must be taken that no part of the work is built under water. A flume or dam must be installed and pumping maintained, if necessary, to keep the new work in the dry until completed and concrete or mortar has been set up.
(d) Junctions for future sewer connections indicated on the drawings shall be bricked off at the ends or otherwise sealed off in a manner approved by the Engineer.
(e) The plans shall indicate the approximate location of house sewer and/or drain connection openings to be provided in the main sewers. The exact location shall be as directed by the Engineer during construction.
(f) Unless otherwise shown on the drawings, all sewer connection openings on bell and spigot pipe shall be “Y” branches, with the spur set on the barrel of the pipe at an angle of either sixty degrees or forty-five degrees, with an outlet six inches in diameter.
(g) Unless otherwise shown on the drawings, sewer connection openings on concrete pipe of the tongue and groove-type shall be cased in the upper one-quarter of the pipe. The shape, size and dimensions of the opening shall be that corresponding to the bell end of a standard sewer pipe six inches in internal diameter.
(h) All openings shall be closed with a vitrified tile or mortar disk, securely held in place with Portland cement mortar, with oakum placed to fill the space between the periphery of the disk and the bell to prevent the bell from breaking when the disk is removed.
(i) When sidewalks are available opposite the sewer being constructed, the contractor shall notch the street side of the walk directly opposite each opening left in the sewer for connection to building drains. Where walks are not available for each marking, the contractor shall place a hardwood stake on the property line directly opposite each opening left in the sewer. The hardwood stake shall be topped with a brass marker labeled “Sewer.” Also, the contractor shall locate and keep a record of all opening locations by measurement to the nearest downstream manhole. Such record shall be delivered to the Engineer monthly during the progress of the work. The hardwood stake shall extend from the opening to the top of the ground.
(Ord. 352. Passed 10-22-62.)