Township of Mount Laurel, NJ Construction Specifications

Bituminous-stabilized base course. Materials shall conform to the requirements specified therefore in Section 2A of the Standard Specifications of the New Jersey Highway Department for Bituminous-Stabilized Base Course Stone Mix, Mix No. 1, except that the minimum bitumen content shall be 5%.

Surface course. The paving materials shall be FABC Mix No. 5, as specified in the New Jersey State Highway Department Standard Specifications, except that the minimum percentage of bitumen shall be 6%.

Methods of construction.

Subgrade. Before construction of the pavement, the subgrade shall be in a properly finished condition conforming to the proper line and grade and free of any soft spots or other deficiencies. Not more than 24 hours prior to commencing of operations on any subgrade, the subgrade shall be tested by running a roller of a weight at least equal to that to be used in the paving operation over the entire subgrade area. When permitted by the Engineer, testing may be performed by other equipment, such as loaded trucks. When in the opinion of the Engineer or his representative the deformation of the subgrade under such test is excessive, the subdivider will be required to stabilize the subgrade in a manner satisfactory to the Engineer. The subgrade shall not be prepared during freezing weather or when frozen or when it is unstable due to excessive moisture.[1]

[1]

Editor's Note: Original Section 802.2.2, Sand blanket, and Section 802.2.3, Aggregate base course, were deleted 12-17-1973 by Ord. No. 1973-18.

Bituminous-stabilized base course.

[Amended 12-17-1973 by Ord. No. 1973-18]

The method of construction shall conform to the same specification indicated for materials above.

The base course shall be laid on a properly prepared subgrade and shall consist of two equal courses.

Upon completion of base-course construction, the contractor shall cut samples from the pavement with a jack hammer, coring machine or other means suitable to the Engineer. The sample shall be intact for the full thickness of the base course and shall be of a size suitable to the Engineer. At least one sample shall be cut for every 1,000 square yards of base course. Where deficiencies in the required minimum thickness are noted, at least two additional cores will be required to determine the extent of such deficiency. The average thickness of the base course as determined by any five or more samples, representing contiguous areas of pavement, shall be not less than five inches or six inches, and the minimum thickness permitted at any location will be 4 1/2 inches or 5 1/2 inches. In the event that the average thickness is less than five inches or six inches or the minimum thickness 4 1/2 inches or 5 1/2 inches, the deficiency shall be made up by increasing the thickness of the surface course.

(d)

All man holes and water valve boxes shall be set even with the stabilized base course.

[Added 6-2-1980 by Ord. No. 1980-22]

Surface course.

[Amended 12-17-1973 by Ord. No. 1973-18]

Prior to placing of the surface course, the contractor shall repair any defects in the base course. Where cracking or any other type of failure has occurred in the base course, the contractor shall completely remove the base course, stabilize the subgrade, if necessary, and construct a new base course. Where the deficiency involves depressions or raveling in the surface of the base course, the repair may be made by skin patching with a suitable bituminous material. For checking of gutter drainage, the subdivider shall supply sufficient water at the high points of the streets and shall run said water into the gutters in order to determine whether or not gutter grades are satisfactory. Wherever puddles occur, he shall skin patch the base course to achieve proper grades in the gutters. After repair of the base course, a tack coat shall be applied as specified in Section 3.10 of the New Jersey State Highway Department Standard Specifications.

In the event of any deficiency in the surface course, such as raveling, depressions, cracking, etc., such deficiencies shall be repaired by removing the surface course and replacing with new material.

All equipment and methods of construction shall conform to the New Jersey State Highway Department Standard Specifications of 1961, except that only one roller may be used where the area to be paved is sufficiently small, in the opinion of the Engineer, to make the second roller unnecessary.

§ 138-50 Concrete curbs, gutters and sidewalks.

Materials.

Concrete for curbs, gutters, sidewalks and driveway aprons shall be constructed with air-entrained concrete with a minimum twenty-eight-day compressive strength of 4,000 pounds per square inch.

Joint filler shall be a cellular-compression material conforming to the requirements therefor of the Standard Specifications of the New Jersey State Highway Department, as amended and revised to date.

The provisions of the entirety of § 138-50 are hereby modified to the extent that developers are encouraged to use pervious paving for patio construction where possible.

[Added 5-21-2007 by Ord. No. 2007-6]

Methods of construction.

Excavation. The contractor shall make all necessary excavations or embankments for the construction, disposing of surplus materials. No filling shall be done below the proposed curb or gutter except when absolutely necessary, in which case such fill shall be made with clean sand or approved gravel and thoroughly tamped before concrete is laid thereon. All soft spots shall be thoroughly tamped, or, if necessary, soft or spongy material shall be removed, and clean sand or approved gravel refilled in its place.

Backfill for curb. After curbing is completed and forms removed, the contractor shall backfill to the top of the curb in back and to the established gutter grade in front. Backfill shall be made with the materials excavated, except that any large or frozen lumps, wood, boulders or other foreign matter shall be removed before placing. Backfill shall be thoroughly compacted.

Forms. Forms for concrete may be of lumber or steel. They shall be straight and of sufficient strength to prevent warping or bulging and to retain the concrete accurately in position. All mortar and dirt shall be removed from forms which have been previously used. Forms shall be well staked to the proposed lines and grades, and their upper edges shall conform to the finished surface of the curb. All forms shall be thoroughly wetted immediately before concrete is deposited against them.

Concrete. Concrete construction, including curing, shall conform to the applicable requirements of the section on concrete structures contained elsewhere herein. The concrete shall be tamped and spaded or vibrated so that the forms are completely filled, the concrete thoroughly compacted and mortar is flushed to the face and top.

Joints: concrete curbs and gutters. Expansion joints, shall be provided at intervals of 20 feet, or when new construction abuts existing construction. The expansion joints shall be filled with one-half-inch-thick cellular-compression material to within 1/2 inch of the top and face of the curb and to within 1/4 inch of the top of the gutter. Dummy joints shall be provided at alternate twenty-foot intervals.

Joints: concrete sidewalks and aprons. Expansion joints, 1/2 inch wide, shall be provided at intervals of 20 feet and where the new paving abuts curb or old work. The expansion joints shall be filled with one-half-inch-thick cellular-compression material to within 1/4 inch of the top of the paving. For sidewalks, surface grooves shall be cut with an approved tool at least 1/4 inch thick at right angles to the line of the sidewalk and at intervals equal to the width of the sidewalk. Where new work abuts existing sidewalk, the surface grooves shall be spaced to conform to the lines of the abutting walk. All surface edges shall be rounded to a radius of 1/2 inch.

Curb finish. Before initial set, the top of the curb and the gutter shall be finished with a wood float to an even, smooth and dense surface. As soon as the forms can be removed, the face of the curb shall be given the same finish. Exposed edges shall be neatly rounded to a radius of 1/2 inch. The finished curb shall be true to the required grades, lines, dimensions and curvatures. Completed work shall be protected from traffic and the elements and shall be thoroughly wetted and kept moist for at least one day. Damaged, broken or cracked work shall be renewed by the contractor at his own sole cost and expense.

Finish: concrete sidewalks and aprons. The finish shall be with a wood float, followed by brooming to a neat and workman-like surface. Exposed edges shall be neatly rounded to a radius of 1/2 inch. The concrete shall be cured as provided elsewhere herein.

§ 138-51 Concrete structures.

Materials.

Cement used shall conform to the following requirements of the American Society for Testing and Materials, as amended to date:

Standard portland cement: A.S.T.M. Designation C-150, Type 1.

High-early-strength portland cement: A.S.T.M. Designation C-150, Type 3.

Air-entraining portland cement: A.S.T.M. Designation C-175, Type 1-A. The air-entraining agent shall be Vinsol resin or Darex air-entraining agent.

Aggregate, both fine and coarse, shall conform to the requirements therefor of the New Jersey State Highway Department Standard Specifications, as amended and revised to date.

Water shall be clean, fresh and free of oils, acids, salts, organic matter or other injurious substances.

Unless otherwise provided, all concrete shall be air entrained, having 4% to 7% of entrained air, and shall be produced by using standard portland cement, with an additive of air-entraining portland cement, with or without additional additives as may be required.

Reinforcing steel shall be intermediate-grade deformed bars conforming to A.S.T.M. Designation A-15 and A.S.T.M. Designation A-432, as amended and revised to date.

Methods of construction.

Only enough water shall be added to make concrete workable for its intended use. The Engineer will determine the slump ranges within which the contractor must work. Ready-mix or transit-mix concrete may be used if obtained from sources approved by the Engineer. Equipment used to proportion and mix concrete on the job is subject to the approval of the Engineer.

Forms shall conform to the shape, lines, dimensions and grades shown on the plans. They shall be firmly braced, tight and substantial so as to prevent movement, bulging and mortar leakage. Wherever concrete will be exposed to view, forms shall be smooth and clean.

Forms for footings may be omitted wherever soil and workmanship permit accurate excavation to size. All forms shall be completely removed.

Reinforcement shall be accurately cut, bent and placed in accordance with the plans. It shall be free of excessive scale or any foreign material that would tend to reduce bond. It shall be securely supported, tied and fastened to prevent movement while concrete is being placed.

Subgrades and excavations and soil base for foundations and slabs shall be properly finished to the prescribed lines, grades and dimensions and shall be approved by the Engineer before concrete is placed. All areas to receive concrete shall be free of frost, foreign matter and excessive water, provided, however, that forms and soil surfaces shall be uniformly damp when the concrete is placed.

Concrete shall be handled and placed so as to avoid any segregation. Concrete which has begun to set or which has been contaminated with foreign materials or to which too much water has been added shall not be used. Pouring of concrete shall generally be a continuous operation until the placing of an individual section has been completed. Concrete shall be thoroughly compacted with vibrators or by other suitable means.

All concrete shall be finished by screening and floating to the required lines and grades. Unless otherwise specified, all work shall have a wood-float finish; provided, however, that the contractor shall provide other finishes when so required by the plans or specifications or so directed by the Engineer.

After the concrete has been poured, it shall be kept continuously wet for a period of one day or longer, as directed by the Engineer. Curing compound may be substituted for water, but in all cases, curing shall be done in a manner approved by the Engineer.

Expansion joints, dummy joints, construction joints and other appurtenances shall be provided as shown on the plans. Expansion joints shall have joint filler of the thickness indicated, which shall extend the full depth of the concrete.

(10)

After removal of forms, all permanently exposed surfaces shall be cleaned of stains and dirt, and all surface defects which do not impair structural strength shall be repaired by cutting and patching in a manner satisfactory to the Engineer.

(11)

Concrete shall not be poured when the atmospheric temperature is below 40° F. or when there is any precipitation, unless precautions satisfactory to the Engineer have been taken to prevent any damage to the work. Precautions necessary to avoid freezing of the concrete shall be in accordance with the current recommendations of the American Concrete Institute.

§ 138-52 Water supply.

Materials.

Cast-iron pipe and fittings.

Cast-iron pipe shall conform to the requirements of the American Standards Association Specification A.21.6 or A.21.8 as amended and revised to date. Unless otherwise specified herein, cast-iron pipe shall be Thickness Class 22.

Flanges shall conform to American Standards Association Specification A.S.A.B. 16.1, Class 125, as amended and revised to date. Mechanical joints shall conform to the American Standards Association Specification A.21.11, as amended and revised to date. Gasket-type joints shall be Tyton or approved equal. Either mechanical or gasket-type joints shall be used for normal water-main construction.

Fittings shall conform to the requirements of the American Standards Association A.21.10, as amended and revised to date.

(d)

Unless otherwise specified, all cast-iron pipe and fittings shall be cement lined in accordance with American Standards Association A.21.4, as amended and revised to date.

Valves.

Valves shall conform to the current American Water Works Association Standard for Iron Body Double-Disc Gate Valves with parallel seats. Valves shall be of the type manufactured by either the Kennedy or Mueller Valve Company. Unless otherwise specified, valves shall be operated by a two-inch square operating nut of cast iron and shall open in the counterclockwise direction. The direction of opening shall be marked on the nut by an arrow and the word "open."

All cast-iron surfaces of valves and valve boxes shall be painted with three coats of asphaltum paint, inside and out.

Valves shall be provided with a means of jointing suitable for use with the adjoining pipe.

Valve boxes.

Valve boxes shall be complete with covers, and both valve box and cover shall be of ample strength and dimension to fully sustain the shocks of heavy vehicular traffic and to maintain the upper section and cover at proper grade under heavy vehicular traffic.

Covers shall be round, at least six inches in diameter and shall have the word "water," an arrow showing the opening direction and the word "open" clearly cast thereon.

Fire hydrants. Fire hydrants shall be as manufactured by the Kennedy or Mueller Valve Company. Operating and cap nuts shall be one and one-half-inch pentagon. They shall be equipped with two hose nozzles and one steamer nozzle, size and threads to be in accordance with local fire company requirements. They shall have a provision for a six-inch connection to the main. Minimum valve opening for the hydrant shall be 4 1/4 inches.

Concrete. Concrete for cradles and thrust blocks shall be constructed within a minimum twenty-eight-day compression strength of 3,500 pounds per square inch, conforming to requirements as specified elsewhere herein.

Methods of construction.

Excavation and backfill shall conform to the requirements for subsurface structure excavation. The contractor shall provide adequate equipment and so operate it as to maintain an essentially dry excavation, stable trench bottoms, suitable working conditions and protection from water damage throughout and until the completion of the work.

Water mains shall be laid in straight lines except when otherwise specifically provided or directed by the Engineer. When deviation from a straight line is permitted, the deflection of each joint shall not exceed the manufacturer's recommended maximum for the type of joint and size of pipe being installed. Pipe shall be laid with at least 3 1/2 feet of cover over the top of the pipe to the existing or proposed finished grade or to the future finished grade, when such is lower. Along extensions of roads which are unimproved, the pipe shall be laid with at least four feet of cover over the top of the pipe to the existing grade. The depth of pipe may be increased or slightly decreased locally to pass obstructions. Grade changes shall be accompanied by fittings and/or dividing the necessary deflection among several joints.

Special care shall be exercised to remove all earth, stones and other materials from each pipe as it is laid and to prevent any such materials from entering the pipeline. The contractor shall see that the entire line maintained is absolutely clean on the inside and that all valves and hydrants are clean and in good working order when installed. Open ends shall be at all times adequately protected and shall be securely sealed with approved plugs whenever work is stopped for any reason whatsoever. After removing a plug, the interior of the pipeline shall be inspected and cleaned before resuming pipelaying operations.

Before placing each length of pipe, the contractor shall carefully examine it for breaks, cracks or other defects and shall discard any which may appear to be in any way defective. All pipe and fittings shall be handled and installed with care to avoid breakage.

Each section of pipe shall be solidly bedded in the trench bottom and shall be supported for its full length except where excess excavation has been made for joints. Before making each joint, the ends of the pipes and all joint members shall be thoroughly cleaned. All jointing shall be done in strict accordance with the manufacturer's recommendations and the directions of the Engineer.

The contractor shall do all necessary pipe cutting and shall locate valves, fittings and fire hydrants in the exact positions indicated. He shall provide and use cutting tools of an approved type and in good order, so as to ensure clean, square cuts to exact measurements.

All fittings and valves shall be set accurately true to and square with pipelines. Valve stems shall be accurately plumb. Fittings and valves shall be supported by approved blocking so as to ensure their remaining accurately in position during jointing and in such manner that their weight will not place undue strain on connecting pipe or joints. Valve boxes shall be set plumb, accurately centered with respect to the valve stem, well supported by solidly tamped earth and with their tops flush with the finished surface grade of the roadway or surface of the ground where set. Pipelines shall be rodded or thrust-blocked at the discretion of the Engineer at all bends greater than 10° and at all tees, plugs, valves and fire hydrants so as to prevent movement of the lines under pressure.

Before new water lines are put into service, the contractor shall provide the necessary equipment for and shall perform a two-hour pressure test during which time pressure will be maintained at 125 pounds per square inch, and the amount of water that must be added to maintain this pressure will be measured. The maximum leakage which will be permitted for sections of the system up to and including 500 linear feet will be 0.01 gallon per inch of diameter per 24 hours per foot of pipe. Where the length of pipe to be tested exceeds 500 linear feet, the total amount of leakage allowed for any such section of pipe shall be the amount which would be allowed for 500 feet multiplied by the square root of the length in feet of the section to be tested and divided by the square root of 500. In general, every section of pipe which can be isolated by existing or proposed valves shall be individually pressure tested, except where such sections are less than 200 feet in length, in which case they may be tested as a part of another section.

Before new water lines are put into service, they shall be completely sterilized with chlorine. The chlorine shall be introduced and distributed into the new pipelines by suitable and approved means and in such manner that it shall reach all of the pipe and all fittings, valves and appurtenances. Sterilization may be done in connection with pipe testing or independently, as may appear more practical. The manner and method of introduction of chlorine shall be satisfactory to and must be approved by the governing water authority. Sterilizing dosage shall be sufficient to provide the equivalent of not less than 50 parts per million (ppm) of free chlorine to the entire contents of the pipeline or section thereof to be sterilized, and the chlorinated water shall be permitted to remain in the pipeline for a contact period of not less than 24 hours. After sterilization, the water main or section shall be thoroughly flushed and put into service. Any section of pipeline which is drained or emptied of water at any time or for any purpose in connection with this work, whether a newly laid pipeline or part of an existing water main system, shall be sterilized as above specified before being returned to service.

(10)

Existing water service shall not be interrupted unless necessary for the completion of the work and then only in accordance with the requirements of the authority.

§ 138-53 Sanitary sewers.

Materials.

Cast-iron pipe and fittings.

Cast-iron pipe shall be centrifugally cast and shall conform to the requirements of the American Standards Association Specifications therefor, as amended and revised to date. In general, cast-iron pipe shall be Thickness Class 22 for nominal pipe diameters of 12 inches and less and Thickness Class 21 for nominal pipe diameters of 14 inches and greater.

Cast-iron pipe shall be provided with mechanical joints which conform to the American Standards Association Specifications therefor, or shall be Tyton Joint pipe as manufactured by United States Pipe and Foundry Company or approved equal.

All cast-iron fittings, including Y-branches, shall conform to the requirements of the current American Water Works Association specifications therefor, except that fittings shall be provided with joints suitable for use with the adjoining pipe. In general, cast-iron fittings shall be Class D for sizes 12 inches and less and Class B for sizes 14 inches and greater. Cast-iron saddles shall be subject to the approval of the Engineer.

Asbestos-cement pipe and fittings.

Asbestos-cement pipe and fittings shall conform to the requirements of the American Society for Testing and Materials specifications therefor, as amended and revised to date. Except where required for special conditions, such as excessive depth, asbestos-cement pipe and fittings shall be nonpressure and in no case less than Class 2400.

All asbestos-cement pipe and fittings shall be furnished complete with sleeve-and-gasket-type couplings designed for use with the size and class of pipe specified.

Cast-iron fittings for use with asbestos-cement pipe shall conform to the requirements for cast-iron fittings hereinabove.

Vitrified-clay pipe and fittings.

Vitrified-clay pipe and fittings shall conform to the requirements of the American Society for Testing and Materials specifications therefor, as amended and revised to date. Except where required for special conditions, such as excessive depth, vitrified-clay pipe and fittings shall be extra-strength or Vitra-Chem.

All vitrified-clay pipe and fittings shall have factory-fabricated, gasket-type couplings which conform to the American Society for Testing and Materials specifications therefor, as amended and revised to date.

Concrete. Any concrete required for cradles, pads, drop connections at manholes and any other miscellaneous items shall be 4,000 pounds per square inch, conforming to the requirements set forth elsewhere herein.

Methods of construction.

Excavation and backfill shall conform to the requirements set forth for subsurface structure excavation. The contractor shall provide adequate equipment and so operate it as to maintain an essentially dry excavation, stable trench bottoms, suitable working conditions and protection from water damage throughout and until the completion of the work.

Pipe shall be laid in straight lines between manholes except when otherwise specifically provided or directed by the Engineer. When deviation from a straight line is permitted, the deflection of each joint shall not exceed the manufacturer's recommended maximum for the type of joint and size of pipe being installed. All pipe shall be laid to uniform grades between manholes.

Before making each joint, the ends of the pipes and all joint members shall be thoroughly cleaned. All jointing shall be done in strict accordance with the manufacturer's recommendations and the directions of the Engineer.

No defective or leaking pipe, fittings, joints, connections, manholes or other parts of the work will be acceptable. All visible leakage of any description, and no matter where located, shall be corrected by the contractor in a manner satisfactory to the Engineer, whether or not the total leakage into the sewer is within the allowable maximum as determined by infiltration tests.

Infiltration tests shall be made when and as directed by the Engineer, and no connections to flowing lines shall be made until the testing is complete and satisfactory results have been obtained. The contractor shall furnish all labor, material and equipment necessary for the infiltration tests. No section of sanitary sewer between adjacent manholes will be considered satisfactory or acceptable when the rate of infiltration thereinto exceeds 100 gallons per inch of internal diameter, per mile of sewer, per day; and no section of sanitary sewer one mile or more in length will be considered satisfactory or acceptable when the rate of infiltration thereinto exceeds 1/2 of the above-specified rate. Leakage in excess of the above shall be located and corrected by the contractor.

Y-branches and service laterals which are not to be immediately connected to flowing lines shall be securely plugged with an approved type of plug, which will provide a permanently watertight seal.

The contractor shall accurately record the station of each Y-branch placed and direction of the Y. He shall also show the location of each Y-branch on his copy of the plans and permanently mark each location with a crosscut on the curb or a hub stake driven at the curbline.

Drop connections at manholes and concrete pads at service risers shall be constructed as shown on the detail sheet of the plans and at the locations shown on the plans or as directed by the Engineer. Concrete cradles over existing pipe shall be constructed where and as directed by the Engineer. All concrete work shall conform to the requirements as set forth elsewhere herein.

When so required by the Engineer, the contractor shall flush such newly completed sewers, as may be designated by the Engineer, in order to remove any foreign matter which may have accumulated therein during construction. The contractor shall furnish all labor, material, equipment and water necessary for flushing and shall provide for the disposal of water used for flushing.

§ 138-54 Storm drainage.

Materials.

Reinforced-concrete pipe. Reinforced-concrete pipe shall conform to the requirements of the American Society for Testing and Materials specifications therefor, as amended and revised to date. Unless otherwise specified herein, reinforced-concrete pipe shall be Class 111, Wall B.

Corrugated-metal pipe.

Corrugated-metal pipe and pipe arch shall conform to the requirements of the American Association of State Highway Officials specifications therefor, as amended and revised to date, and conform to the following gauge requirements:

Diameter (inches)	Gauge (aluminum)	Gauge (corrugated)
15	14	16
18	12	16
21	12	16
24	12	14
30	12	14
36	10	12
42	10	12
48	10	10
54	8	10
60	8	8
For pipe diameters in excess of 60 inches, the specific design shall be approved by the Engineer.

Corrugated-metal pipe and pipe arch shall be fully bituminous-coated inside and outside in accordance with current American Railway Engineering Association specifications and shall have bituminous-paved inverts. The invert paving shall fill the valleys of the corrugations and cover the crests of the corrugations a minimum of 1/8 inch. For round pipe, the invert paving shall cover not less than 25% of the inside perimeter of the pipe, and for pipe arch, the invert paving shall cover not less than 40% of the inside perimeter of the pipe.

Concrete. Four-thousand-pounds-per-square-inch concrete, conforming to the requirements set forth elsewhere herein, shall be used for the construction of concrete cradles and in making connections to existing drainage structures.

Methods of construction.

Reinforced-concrete pipe for storm drainage installation shall be delivered, stored, handled and installed in accordance with the Township's Master Specification for Reinforced-Concrete Pipe for Storm Drainage Installations, dated January 16, 1980, and any supplement thereto. Joint material shall be flexible rubber gaskets rather than mortar.

[Added 6-2-1980 by Ord. No. 1980-22]

Pipe shall be laid in straight lines between drainage structures except when otherwise specifically provided. When deviation from a straight line is permitted, the deflection of each joint shall not exceed the manufacturer's recommended maximum for the type of joint and size of pipe being installed. All pipe shall be laid to uniform grades.

No defective or leaking pipe, joints, connections, manholes, inlets or other parts of the work will be acceptable. All visible leakage of any description, and no matter where located, shall be corrected by the contractor in a manner satisfactory to the Engineer.

Except when necessary to maintain a flow, storm drains shall not be placed in an embankment until the embankment has been constructed and consolidated to proposed finished grade or subgrade or to an elevation not less than three feet above the proposed top of pipe, whichever is lower. After an embankment has been so constructed, trenches for storm drains shall be excavated as hereinabove specified.

When so required by the Engineer, the contractor shall flush such newly completed storm drains as may be designated by the Engineer, in order to remove any foreign matter which may have accumulated therein during construction. The contractor shall furnish all labor, material, equipment and water necessary for flushing and shall provide for the disposal of water used for flushing.

The locations of existing pipes and structures shown on the plans are approximate, and, before construction, the contractor shall determine the exact locations of all existing pipes and structures in the vicinity of the proposed work. Connections to existing pipes and structures shall be made in a manner satisfactory to the Engineer.

§ 138-55 Manholes, inlets and catch basins.

Materials.

Concrete. Concrete shall conform to the requirements specified elsewhere herein.

Concrete block. Concrete block for the construction of manholes, inlets and catch basins shall conform to the requirements of the American Society for Testing and Materials specifications therefor, as amended and revised to date. Concrete blocks for manholes shall have the required radius and batter.

Brick. Brick shall be Grade MA conforming to the American Society for Testing and Materials specifications therefor, as amended and revised to date.

Mortar. Mortar shall be one-to-two cement-sand mortar.

Iron castings. Iron castings shall conform to the requirements of the American Society for Testing Materials specifications for gray iron casting, as amended and revised to date, supplemented as follows:

Castings shall be boldly filleted, and arises shall be sharp and perfect.

The castings shall be true to pattern in form and dimension, free of pouring faults, sponginess, cracks, biowholes and other defects which affect their strength and value for the service intended.

The bearing surfaces of frames, covers and grates shall be fitted together so as to prevent rocking, and the pieces shall be match-marked.

Ladder rungs. Ladder rungs shall be fabricated of rolled wrought iron or aluminum conforming to the current American Society for Testing and Materials specifications therefor and shall be subject to the approval of the Engineer.

Methods of construction.

Excavation and backfill shall conform to the requirements for subsurface structure excavation.

Manholes, inlets and catch basins shall be constructed in accordance with the standard details shown on the plans. Unless otherwise specified or directed, manholes, inlets and catch basins may be constructed of either brick, concrete block or four-thousand-pounds-per-square-inch concrete. The foundations for all manholes, inlets and catch basins shall be four-thousand-pounds-per-square-inch concrete.

Concrete construction shall conform to applicable requirements elsewhere herein.

Concrete blocks and bricks shall be laid with vertical joints staggered. Joints shall be not more than 1/2 inch thick and shall be completely filled with mortar. The masonry shall be carried to such a height that a mortar joint not more than 1/2 inch thick will be required for setting the head casting without using split blocks or bricks. Outside walls shall be plastered with a five-eighths-inch-thick coat of mortar, troweled to a smooth finish.

Outside walls of sanitary sewer manholes shall receive two coats of an approved coal tar pitch.

§ 138-56 Subsurface structure excavation.

Materials.

Material for backfill, if acceptable to the Engineer or his representative, shall be the material excavated, except that any large and frozen lumps, wood, boulders or other foreign matter shall be removed before placing.

If the excavated material is not acceptable as backfill material, all excavations shall be backfilled with run-of-bank sand or gravel. All excess excavated material will be disposed of by the contractor in a manner acceptable to the Engineer.

Methods of construction.

The contractor shall do all excavation of whatever substances encountered to the depth shown on the plans.

Excavation shall not be carried below the required level except where unstable soil is encountered. The Engineer shall determine the depth of removal of unstable soil, and the contractor shall at the Engineer's direction, remove and replace same with gravel, crushed stone or crushed slag thoroughly tamped. Whenever excavation has been made below the required level, it shall be replaced with gravel, crushed stone or crushed slag and shall be thoroughly tamped.

Ground adjacent to the excavations shall be graded to prevent water from running in. The contractor shall remove any water accumulating in excavations by pumping or other suitable means.

The contractor shall do all bracing, shoring and sheeting necessary to prevent failure of the banks of the excavation and to protect the work, workmen, public, under- and aboveground utilities and structures, pavements and public and private property. No bracing, shoring or sheeting shall be placed below the bottom of the pipe or structure unless approved by the Engineer.

The contractor shall provide, install and operate an adequate well-point system of dewatering when necessary to stabilize trench bottoms and banks or other excavations or, when necessary, to protect the work, workmen, public, under and aboveground utilities and structures, pavements and public and private property. The well-point system or portions thereof shall be removed by the contractor upon the completion of backfill, and the holes remaining from the points shall be backfilled and thoroughly tamped.

Excavation for manholes and other structures shall have a twelve-inch minimum clearance and twenty-four-inch maximum clearance on all sides. The width of trenches for pipe shall be not less than 16 inches and not more than 22 inches in excess of the outside diameter of the pipe. Rocks and boulders present in excavation shall be removed within six inches of the pipe. Banks of excavations, unless otherwise indicated or allowed, shall be vertical.

Preliminary excavation shall be made only to a depth of three inches above the final depth of any trench or other excavation. The remaining depth shall be carefully excavated, shaped and formed with hand tools immediately preceeding laying of pipe or placing concrete. Trench bottoms shall be accurately formed to receive and support the bottom of the barrel of the pipe. Additional excavation shall be made in pipe trenches at the pipe joints and to prevent any possibility of a pipe resting on the bell rather than the barrel.

After the structure has been completed, inspected and approved or, in the case of pipe, after each joint has been made, inspected and approved, backfilling shall proceed immediately. Where pipe has been laid, this shall be done in four-inch layers of suitable fine material, each layer thoroughly tamped, to a height of 12 inches above the top of the pipe. The remainder of the trench and the entire excavation for all structures other than pipe shall be backfilled in nine-inch layers, loose measure, each layer thoroughly tamped. Dampening of the material to be tamped may be required by the Engineer.

Puddling or flushing in lieu of tamping may be used if approved by the Engineer or may be required by the Engineer. Shoring, sheeting and bracing of any kind shall be withdrawn as the backfilling proceeds, except that the Engineer may require such bracing to be left in place if it has been placed below the bottom of any structure or pipe or if he deems it necessary in order to protect adjacent structures, utilities or property.

§ 138-57 Playgrounds.

[Amended 12-17-1973 by Ord. No. 1973-18; 9-9-1981 by Ord. No. 1981-14]

If required by the approving body, the playground shall be enclosed with a four-foot-high galvanized chain link fence, 11 gauge, green vinyl coated, with a thirty-six-inch wide gate.

If required by the approving body, Wollmanized pressure-treated railroad ties shall be located completely around the perimeter of the fencing except at the gate opening.

If required by the approving body, a six-inch-deep sand-blanket shall be provided for playgrounds located in open areas. Underdrains shall be provided if required by the Township Engineer. In wooded areas, safety surfaces consisting of Goff's infield mix or equivalent may be required around individual pieces of play equipment.

Playgrounds in open areas shall be provided with no less than eight deciduous shade trees located near benches, tables and recreation equipment. The trees shall have a minimum caliper of two inches and shall be staked and protected with wire mesh to a height of six feet.

The sidewalk shall be extended to the perimeter of the play equipment safety area and rest area as required by the approving body.

§ 138-58 Tennis courts.

[Added 9-9-1981 by Ord. No. 1981-14]

All tennis courts shall be regulation size and shall be oriented on a north-south axis. The blacktop and color coating shall be extended one foot beyond the fence line.

The courts shall be enclosed with a ten-foot high, eleven-gauge, green-vinyl-coated galvanized chain link fence. The bottom of the fencing shall be a uniform one inch from the court surface at all locations. Line posts are to be a minimum 2 1/2 inches outside diameter, terminal posts, a minimum three inches outside diameter with brace assembly, and the top rail, a minimum 1 5/8 inches outside diameter. Posts shall be evenly spaced no further apart than 10 feet on center and shall provide at least 36 inches setting in concrete. Gate openings shall be not less than seven feet wide, with a double door.

Tennis courts shall be in a true plane and graded side to side with a cross slope of 1%.

The courts shall be four inches of bituminous stabilized base course on a properly prepared subgrade acceptable to the Township Engineer one-and-one-half-inch-thick FABC-1 leveling course; and a one-inch SP-1 top course coated with a two-colored sealer as approved by the approving body. The sealer shall be Monsey-Decoralt or an equivalent approved by the Township Engineer. Under-drains and granular subbase may be required as determined by the Township Engineer.

The courts shall be lined in accordance with the rules of the United States Lawn Tennis Association. The paint shall be white line paint by Monsey Decoralt or an equivalent approved by the Township Engineer.

Tennis court nets shall be nylon as manufactured by Gametime No. 329 or an equivalent as approved by the approving body.

Tennis posts shall be baked on enamel with enclosed ratchets as manufactured by Chevron or an equivalent approved by the approving body. Posts shall be set in concrete.

An eight-foot aluminum bench with back support shall be located near each gate entrance and be accessible from the walk The benches shall face the courts, and shall be Model Number 881, manufactured by Gametime, or an equivalent approved by the approving body.

Signs shall be located on each court, identifying the court number, rules and regulations. The sign material, size, color, location, method of fastening, lettering and message content shall be as specified by the approving body.

Deciduous trees shall not be planted closer than 20 feet to a tennis court fence. All existing trees shall be trimmed to prevent overhanging branches.

Lighted tennis courts shall provide a minimum of 14 footcandles maintained average in the court area at grade level, using metal halide lamps. Every two courts shall be on a separate electrical control system. Each control system will consist of an astronomical-dial time clock; a waterproof push-button surface-mounted station limited to turning the light on only, with provisions for padlocking; and a watertight cast-aluminum meter cabinet, with a manual on/off switch and provision for a key lock. The meter cabinet shall be baked green enamel. Poles shall be Corten steel, self-weathering, except that aluminum poles shall be used when the poles are located on the playing surface.

§ 138-59 Basketball and hockey courts.

[Added 9-9-1981 by Ord. No. 1981-14]

The dimensions of the paved basketball court area shall be a minimum of 60 feet by 94 feet and larger, 74 feet by 108 feet if the same court is to be used for hockey. Courts shall be oriented on a north-south axis.

The court shall be enclosed with a four-foot-high, eleven-gauge green-vinyl-coated galvanized chain link fence, subject to all of the specifications of § 138-58B. The fencing shall be located at the edge of the paved area and shall be one inch off the surface.

The courts shall be four inches of bituminous stabilized base course on a properly prepared subgrade acceptable to the Township Engineer and a one- and-one-half-inch-thick FABC-1 top course. Courts shall be in a true plane and graded side to side with a cross slope of 1%.

The basketball courts shall be lined with two-inch-wide painted white lines, with court dimensions of 50 feet by 84 feet as measured from the inside of the court lines. All other line locations shall be in accordance with standard design practice as approved by the approving body.

Basketball posts shall be Gametime 460, goals and nets to be Gametime 423, and the backboard shall be Gametime 853 or equivalent for all items if approved by the approving body.

Lighted courts shall be as specified in § 138-58K.

Signs and tree planting, if required, shall be as specified in § 138-58I and J.

A bench for each court shall be included as specified in § 138-58H.

The dimensions of the paved hockey court area shall be a minimum of 80 feet by 200 feet. Courts shall be oriented on a north-south axis.

If required by the approving body, curbing shall be placed around the court perimeter to enable the courts to be used for ice-skating. Specifications to be determined by the Township Engineer.

The court shall be enclosed with a four-foot high, eleven-gauge green-vinyl-coated galvanized chain link fence. The bottom of the fence shall meet the court surfacing. The remainder of fencing shall be subject to all of the specifications of § 138-58B.

The courts shall be four inches of bituminous stabilized base course on a properly prepared subgrade acceptable to the Township Engineer and a one- and-one- half-inch-thick FABC-1 top course. The blacktop shall extend one foot beyond the fence line. Courts shall be in a true plane and graded side to side with a cross slope of 1%.

The courts shall be lined with two-inch-wide painted white lines. All line locations shall be in accordance with stand-design practice as approved by the approving body.

Play equipment shall be as specified by the approving body.

§ 138-60 Baseball fields.

[Added 9-9-1981 by Ord. No. 1981-14]

All baseball fields shall be designed as specified in Construction Drawing No. 20,[1] except that the approving body may specify altered dimensions for baseball and softball fields.

[1]

Editor's Note: See § 138-65, Construction drawings.

The entire infield shall be skinned within a radius measuring 95 feet from the front center of the pitcher's plate as shown on Construction Drawing No. 20.

The infield area shall contain infield mix equal to or better than Best Top as furnished by Jesse Morie and Son, Inc.

Construction of the infield shall be as follows: The skinned subbase area should be graded to within four inches of finished grade and contoured with a slope of 2% from the pitcher's mound to the edge of the outfield grass and to a point six feet beyond the base lines and home plate. Stones should be removed and a soil sterilizer applied. The base should be lightly scarified and infield mix applied uniformly to a depth of six inches and then mattdragged to a smooth level grade. Lastly, the skinned area should be moistened with a fine spray to a depth of 1 1/2 inches and rolled to a uniform smooth surface.

The pitcher's plate and home plate shall be supplied by the applicant. The pitcher's plate shall be Sav-A-Pitch, and the home plate shall be Sav-A-Leg as manufactured by Robert Sisco Association or equivalent as approved by the approving body.

The backstop shall be made of nine-gauge chain link fencing with bottom rails. It shall be 12 feet high and 12 feet wide with wings 12 feet high and 10 feet wide on both sides and shall have a slanted eight-foot overhang. Knuckled sideline fence eight feet high and 40 feet long with bottom rails shall be installed parallel to both wing walls.

All upright pipes are to be three inches outside diameter. All crossbars and braces are to be 1 5/8 inches outside diameter. All upright pipes shall be set three feet into a concrete foundation 12 inches in diameter and 42 inches deep. All pipes shall be standard weight Schedule 40. All materials shall be galvanized, and all crossbars and bracing shall face away from the playing area.

The height of the pitcher's mound shall be 10 inches above the infield and shall be composed of 45% clay and 55% fine gravel. The same material mix shall be used in the batter's boxes. A slope of one inch per foot should start six inches in front of the pitcher's plate and extend for six feet.

All fields shall have a north-south orientation, with home plate facing north, where possible.

Outfield distances shall not be less than 300 feet from home plate.

Off-street parking shall be provided if required by the Township.

The outfield shall consist of four inches of fertilized topsoil, that is graded and hydroseeded to create a smooth playing surface. The seed mixture shall be 60% Kentucky 31 Tall Fescue, 20% Kentucky bluegrass and 20% fine textured rye grass.

Two player's benches per field shall be provided as manufactured by Mexico Forge No. 155-115 or an equivalent as approved by the approving body.

One portable all aluminum bleacher shall be provided as manufactured by Gametime, Model Number 2308, with one portability unit 2316, or, an equivalent as approved by the approving body.

First priority shall be given to designing separate fields with no overlap. Where overlapping occurs there shall be not less than 10 feet between the baseball infield area and the soccer-football playing area. The applicant shall provide one pair of removable combination football-soccer goals with nets, sleeves and caps as manufactured by Mexico Forge No. 910-000 and No. 920-080 or an equivalent approved by the approving body.

Lighted baseball fields shall provide a minimum of thirty-footcandle maintained average for the infield and twenty-footcandle maintained average for the outfield. Corten Steel self-weathering poles or aluminum poles, and metal halide lamps shall be used.

§ 138-61 Softball, football and soccer fields.

[Added 9-9-1981 by Ord. No. 1981-14]

All softball-football-soccer fields will be designed and constructed as specified in § 138-60, except as herein modified.

The entire infield shall be skinned within a radius measuring 55 feet from the front center of the pitcher's plate.

There will not be any pitcher's mound.

Outfield distances shall be 275 feet minimum from home plate.

The distance between bases will be 60 feet or such other dimension as specified by the approving body.

The distance of the backstop from home plate shall be as specified by the approving body.

Lighted softball fields shall provide a minimum of twenty-footcandle maintained average for the infield and fifteen-footcandle maintained average for the outfield. Corten Steel self-weathering poles or aluminum poles, and metal lamps shall be used.

The standards set forth in § 138-60O shall be followed, where applicable.

Portable bleachers shall be added as specified in § 138-60N.

§ 138-62 Other recreation standards.

[Added 9-9-1981 by Ord. No. 1981-14]

All recreation facilities shall be designed with minimum grades to facilitate access by people with handicapping conditions.

Concrete or bituminous sidewalks, not less than four feet wide, shall be constructed to connect recreation facilities with adjacent parking lots and residential sidewalks. Buffer trees and maintenance-free ground cover shall be placed in the open space access area when the sidewalk is contained in an open space access less than 50 feet wide and is between residential lots. Such sidewalks shall be constructed to the actual playing facility and spectator areas.

Four-inch-thick concrete pads shall be placed under all benches and picnic tables and extend four feet out on the three sides and one foot to the rear to provide a stable area for wheelchairs, to reduce lawn maintenance and to provide a continuous connection to the walkways.

Evergreen buffer plantings shall be provided wherever necessary to create a visual and noise barrier between adjacent residential dwellings.

Landscaping of recreation sites shall be with maintenance-free ground cover as approved by the Township.

All facilities shall be designed in accordance with barrier-free design regulations.

The following specific standards shall be followed for designing facilities to meet the needs of handicapped persons:

Provide handicapped parking stalls with ramps.

Provide barrier-free routes of travel with no obstructions and minimal grade changes.