§ 143-22. Pipeline construction.  


Latest version.
  • A. 
    General. All labor, materials, equipment, tools and services required for the furnishing and installation of any type of pipe shall conform to the following specifications:
    (1) 
    All pipe shall be installed in the sizes and to the lines and grades shown or the approved subdivision drawings. The type and specifications of pipe to be furnished and installed in each location shall be as designated on the subdivision drawings. Pipe shall be new pipe and shall be rejected if found not to meet the minimum requirements set by the Town.
    (2) 
    All pipelines and appurtenances of whatever type or description shall be constructed in an approved manner to the complete satisfaction of the Town.
    (3) 
    Where lift holes are provided in concrete pipe, they shall be filled with a stiff mortar mix after the pipe is installed in the trench.
    (4) 
    The owner, at his own expense, at all times during the progress of the work shall keep the trenches and excavations free from water. Water from trenches and excavations shall be disposed of in such a manner as will neither cause injury to the public health nor to the surface of streets, nor cause any interference with the use of public rights-of-way. Water shall not be allowed to flow away through newly laid sewers.
    (5) 
    All pipe shall be installed to the limits of the approved subdivision section and shall terminate in a manhole, catch basin, hydrant or blowoff, as appropriate. Stubs shall be installed in manholes and catch basins to provide for future extension of pipelines.
    B. 
    Excavation general.
    (1) 
    Necessary arrangements shall be made by the owner with all persons, firms or corporations owning or using any poles, pipes, tracks or conduits, etc., affected by his construction to maintain and protect such facilities during construction. In the event that any existing gas pipes, water pipes, conduits, sewers, tile drains or poles are blocked or interfered with by the excavation required on his project, the owner shall maintain them in continuous operation and restore them to the same condition as they were prior to the start of construction.
    (2) 
    Sidewalks and pavements must be in no case blocked or obstructed by excavated material except with the approval of the Town and then only when adequate provisions have been made for a satisfactory temporary passage of pedestrians and vehicles. Adequate bridging and planked crossings must be provided and maintained across all open trenches for pedestrians and vehicles then so ordered by the Town. Barriers, lights, flares and watchmen shall be provided and maintained by the owner at all trenches, excavations and embankments as required by the Town.
    (3) 
    The excavating of the trench shall not advance more than 200 feet ahead of the completed masonry or pipe work except where it is necessary to drain wet ground. The width of trenches in which pipe is to be installed shall be such as to provide adequate space for workmen to place and joint the pipe properly and shall be in accordance with the following:
    Maximum Trench Width One Foot
    Above Top of Pipe
    Pipe Size
    (inches)
    Trench Width
    (inches)
    8 to 12
    30
    15 to 18
    O.D., plus 16
    21 to 27
    O.D., plus 18
    30 to 36
    O.D., plus 24
    NOTE: "O.D." is the outside diameter of the pipe barrel.
    (4) 
    The owner shall furnish, put in place and maintain such sheeting and bracing as may be required to support properly the sides and ends of excavations and to prevent injury to the structure built or to persons or property.
    (5) 
    If at any time the Town so orders, the owner shall install such additional sheeting and bracing as may be required by the State of New York, Department of Labor, by adverse soil conditions or by the Town; but compliance with such orders or failure on the part of the Town to exercise its right to give such order shall in no way release the owner from liability for damage caused by weak or insufficient sheeting nor from his responsibility to protect the work and adjacent property. Voids appearing outside the sheeting shall be immediately and compactly filled with suitable material and to the satisfaction of the Town.
    (6) 
    All sheeting and bracing must conform with the requirements of 29 CFR 1926, Safety and Health Regulations for Construction (OSHA).
    [Amended 5-1-1995 by L.L. No. 2-1995]
    (7) 
    Trench bottoms shall be excavated to conform to the type of bedding specified for the project.
    (8) 
    Where excavations are opened and, in the opinion of the Town, the materials in place are not adequate for structural stability of the completed work, the Town may order the owner to carry the excavation to an additional depth and to furnish and place concrete cradles, sand or gravel refill and/or timber and piling foundations.
    C. 
    Rock excavation.
    (1) 
    Excavation and trenches in rock shall be carried to a depth of one-fourth (1/4) the diameter of the pipe, but in no case less than six inches below the pipe bottom, and shall be made by any acceptable method, including use of explosives.
    (2) 
    Where blasting is necessary, it shall be done by men experienced in such work. All blasts shall be well covered and provisions made to protect pipes, conduits, sewers, structures, persons and property adjacent to the site of the work. Prior to blast, all persons in the vicinity shall be given ample warning. Blasting will not be permitted between the hours of 6:30 p.m. and 6:30 a.m., except with special permission, nor within 25 feet of the completed work.
    (3) 
    All handling and use of explosives shall be in accordance with Industrial Code Rules Nos. 23 and 30 of the New York Department of Labor, Board of Standards and Appeals, and Article 16 of the New York State Labor Law.
    (4) 
    The owner shall secure all permits required by law for blasting operations and any additional hazard insurance required.
    Editor's Note: Original Section 6.4, Lines and Grades, which immediately followed this section, was repealed 5-1-1995 by L.L. No. 2-1995.
    D. 
    Bedding. The class of bedding to be used shall be as specified in the final submission drawings. There shall be excavation for bells and flanges in all classes of bedding. Beddings for pipe shall conform to New York State Department of Transportation Standard Specifications.
    Editor's Note: Amended at time of adoption of Code; see Ch. 1, General Provisions, Art. I. Editor's Note: Original Subsections a, b and c of this section, which immediately followed this subsection, were repealed 5-1-1995 by L.L. No. 2-1995.
    E. 
    Pipe laying.
    (1) 
    Pipe shall be protected during handling against impact shocks and free fall. Pipe shall be kept clean at all times.
    (2) 
    The laying of pipe in prepared trenches shall be commenced at the lowest point with the spigot ends pointing in the direction of flow.
    (3) 
    All pipe shall be laid with ends abutting and true to line and grade. They shall be carefully centered so that when laid they will form a uniform invert.
    (4) 
    Preparatory to making pipe joints, all surfaces of the portions of the pipe to be jointed or of the factory-made jointing material shall be clean and dry. Lubricants, primers, adhesives, etc., shall be used as recommended by the pipe or joint manufacturer. The jointing materials or factory fabricated joints shall then be placed, fitted, joined and adjusted in such a workmanlike manner as to obtain the degree of watertightness required.
    (5) 
    Trenches shall be kept waterfree and as dry as possible during bedding, laying and jointing and for as long a period as required. As soon as possible after the joint is made, sufficient backfill material shall be placed along each side of the pipe to offset conditions that might tend to move the pipe off line and grade.
    (6) 
    All ends of pipe runs shall be capped with standard stoppers or with a fitting provided with an approved joint. If stoppers are used, they must be wedged in place with boulders or masonry blocks. Large lines may be bricked off at the ends or otherwise sealed in a manner approved by the Engineer.
    F. 
    Backfilling.
    (1) 
    All backfilling to a point four inches over the top of the newly laid pipe shall be consistent with bedding material. To a point 18 inches over the top of the pipe, there shall be no stones larger than two inches.
    [Amended 5-1-1995 by L.L. No. 2-1995]
    (2) 
    No frozen material shall be used for backfill.
    (3) 
    When backfilling in open-cut across or within the right-of-way limits of any street, road, highway or railroad, the remainder of the backfill shall be select granular material. Compaction for the entire depth shall be in accordance with New York State Department of Transportation Standard Specifications.
    [Amended 5-1-1995 by L.L. No. 2-1995]
    (4) 
    When backfilling in unpaved areas outside the right-of-way, the excavated material may be used to complete the backfilling, provided that all deleterious contents, if any, are removed as directed by the Town. The backfill shall be rounded off over the trench not higher than eight inches. Materials shall be compacted in layers not more than two feet thick by hand or by machine.
    (5) 
    No pipe shall be covered before permission is given by the Town.
    (6) 
    Under no circumstances shall water be permitted to rise in trenches before they are backfilled.
    (7) 
    Backfilling shall be completed to a point two feet above the top of all pipe laid each day. Operations shall be scheduled so that the trench is completely backfilled to within 200 feet of the end of the completed, installed sewer at the end of each day.
    (8) 
    Whenever timber sheeting is driven to a depth below the elevation of the top of the pipe, that portion of the sheeting below the elevation of the top of the pipe shall not be disturbed or removed. Whenever timber sheeting is driven for the protection of trench walls in water-bearing soil, no portion of such sheeting below a level four feet over the top of the pipe shall be removed.
    G. 
    Tunnels. Methods of excavation support and backfill in tunnels made beneath existing structures, railroads, pavements and sidewalks for the installation of pipe or conduits shall be subjected to approval of the Town before work is begun.
    H. 
    Jacking and boring. Methods of jacking or boring to install pipe shall be approved by the Town before such work is started.
    I. 
    Manholes and catch basins.
    (1) 
    All manholes and catch basins shall be precast concrete construction (Fort Miller or equal).
    (2) 
    Precast concrete rings shall be laid with full mortar joints.
    (3) 
    Mortar shall consist of one part portland cement and two parts clean torpedo sand with ten-percent-hydrated lime added.
    (4) 
    Pipe placed through manhole or catch basin sidewalls and stubs installed for future extensions shall extend through the walls a sufficient distance to allow connection on the outside. Such pipes shall be struck smooth on the inside in line with the inside wall of the manhole. The manhole masonry shall be carefully constructed around all pipes so as to prevent leakage along the outer surfaces.
    (5) 
    Frame castings shall be set in full mortar beds on top of masonry.
    (6) 
    The top four to 12 inches of the manhole directly under the casting shall be constructed of precast concrete grade rings to provide for adjustment to grade and future construction. Field cutting of precast manhole sections shall not be allowed for grade adjustment.
    J. 
    Connections.
    (1) 
    Connections of new lines to existing lines when encountered in construction and not shown on the subdivision drawings shall be made where ordered by the Town. Such connections shall be made within a manhole or catch basin in the case of sewers or storm drains except for house sewer and drain connections.
    (2) 
    Junctions for future sewer connections indicated on the final subdivision drawings shall be sealed as specified above in Subsection E, Pipe laying.