[Adopted 6-13-1985 by Ord. No. 1234 (Ch. 210, Art. III, of the 1990 Code)]
The short title by which this article shall be known is the "Street Improvement Ordinance."
[Amended 8-8-1995 by Ord. No. 1910]
A. 
All streets shall be constructed in accordance with official grades established by the Township Engineer and shall conform to the following specifications:
(1) 
Right-of-way and pavement width determinations.
Type of Road
Right-of-Way
(feet)
Pavement Width
(feet)
Arterial
80 to 100
50
Major collector
72
48
Collector/nonresidential
66
42
Collector/residential
60
36
Local nonresidential
60
40
Local residential
50
30
(2) 
Pavement thickness design.
Type of Road
Subbase
(inches)
Stabilized Base
(inches)
FABC
(inches)
Arterial
6
7
3
Major collector
6
6
3
Collector/nonresidential
6
7
2
Collector/residential
6
6
2
Local, nonresidential
6
6
1 1/2
Local, residential
4
4
1 1/2
B. 
Street classifications for right-of-way and pavement width determinations, as well as pavement thickness design, will be made by the Township Engineer based on anticipated traffic flow in conformance with the Township Master Plan.
[Amended 8-8-1995 by Ord. No. 1910]
A. 
All trenches or ditches which cross an existing street or which are dug for sewers, water mains, gas mains or other utilities, including the house connections for these utilities, shall be filled with quarry process stone. The stone shall be placed in layers not exceeding 12 inches in depth and shall be sprinkled with water and mechanically compacted. All soft spots and depressions in a surface which has been graded will be removed and filled with stone of a size to be determined by the Township Engineer. All trenches which are dug in a future street or existing right-of-way on which no subbase or pavement has been constructed shall be backfilled as indicated above or may be backfilled with suitable on-site excavated material or imported fill.
B. 
Prior to using any on-site and/or imported soil materials, the contractor or any individual or firm shall employ a recognized soils laboratory to secure soil samples, perform the necessary laboratory analysis and establish the compaction and other criteria necessary for the proper placement of the backfill. A report of the laboratory findings, including the compaction specifications, shall be submitted to the Township Engineer for review and approval prior to commencing any backfill operations using on-site soil and/or imported soil materials.
C. 
During the backfilling operations, the contractor or any individual or firm engaged in a backfilling operation shall employ a professional engineer, licensed in the State of New Jersey, or his representative, who is regularly engaged in the practice of geotechnical engineering and who is trained in soil mechanics, to observe the placement of the backfill. The soils engineer shall file daily reports with the Township Engineer indicating the results of the compaction, and upon the conclusion of the project, file a final certification indicating that the backfill material has been placed and compacted in accordance with the recommendations contained in the approved laboratory report.
Street signs of the type and design to be approved by the Planning Board shall be installed at all street intersections.
A. 
Tack coat prior to resurfacing.
(1) 
After all surface restoration has been completed and manholes reset, the street shall be swept clean of all loose stone, leaves, dirt, etc. The existing paved surface shall be given an application of tack coat material of cutback asphalt Grade RD-10, as specified by the Asphalt Institute in Specifications for Asphalt Cements and Liquid Asphalt SS-2, at the rate of 0.02 to 0.10 gallon per square yard or as directed by the Township Engineer prior to placing the new surface.
(2) 
Equipment for applying the tack coat shall be power-operated pressure spraying or distributing equipment suitable for the materials to be applied and approved by the Township Engineer.
B. 
Subbase quarry stone. The amount of subbase quarry stone to be used will be dependent upon the condition of the subbase as determined by the subbase inspection made by the Township Engineer.
C. 
Temperature of longitudinal bituminous concrete joints. When a course of bituminous concrete is abutted to a previously laid course, the abutting surface of the latter shall be of a temperature of not less than 225° F. at the time the joint is made. If this is not achieved by making the joint before the first-laid bituminous concrete is cooled, the subdivider shall use one or more joint-heater devices. Such devices shall be of the infrared type of approved equal and shall be constructed so as to permit adjustment of heat intensity in accordance with conditions prevailing at the time of use and shall heat the abutted material uniformly to a temperature of not more than 215° F., treating in the upper ranges of these specified temperatures when atmospheric conditions are conducive to a more rapid cooling. All joint-heating devices that apply a direct flame or have a harmful effect upon the bituminous concrete will be prohibited.
D. 
Resurfacing adjacent to existing curbs or over existing gutter.
[Amended 6-23-2020 by Ord. No. 4326-20]
(1) 
Where resurfacing a street with curb and gutter, the existing curb and gutter shall be maintained. Any damaged curb and gutter sections shall be replaced prior to placement of bituminous concrete, but after any adjacent roadway milling. All curb and gutter replacement will be at the determination of the Township Engineer or designee.
(2) 
Where the concrete gutter is already overlayed with bituminous material, it shall be carefully stripped to the existing concrete prior to resurfacing.
(3) 
In case the existing gutter or curb is damaged during the stripping or resurfacing operation, it shall be repaired or replaced by the subdivider to the satisfaction of the Township Engineer.
(4) 
Bituminous concrete will be laid as close to the curb as practical, but sufficient room must be left so as to be able to feather the edge down where it meets the curb in order that water will not drain into the driveways.
E. 
Replacement of existing portland cement concrete base course.
(1) 
Concrete base course is only to be used where directed by the Township Engineer and only on roads with existing concrete base to replace existing defective or missing portions. It is to be placed to a depth of one inch greater than the adjacent sections, and the top is to be struck at the same level as the adjacent concrete base.
(2) 
All construction of existing concrete base course should conform to the requirements of the NJSHDSS, dated 1961, Div. 3, Sec. 3.
F. 
Construction requirements of concrete mixes.
(1) 
Measuring. The method of measuring the materials for the concrete or mortar, including water, shall be one which will ensure separate and uniform proportions of each of the materials at all times.
(2) 
Proportions. The concrete shall be mixed in the proportions which, when the proper amount of water is added, will produce a minimum compressive strength of 4,000 pounds per square inch after 28 days when cured under field conditions. It shall have this minimum ultimate compressive strength for each test, as determined by testing six-by-twelve-inch cylinder samples of the concrete, in accordance with the requirements of the latest revision of ASTM Designation C-39, Standard Method of Test for Compressive Strength of Molded Concrete Cylinders.
(3) 
Admixtures. Air-entraining agents shall be added to the mix at the plant in sufficient quantities to produce air-entrainment of not less than 4% nor more than 7%.
(4) 
Mixing. Unless otherwise authorized by the Township Engineer, all concrete used will be transmit mix. Truck mixers shall be of the revolving-drum type. When a truck mixer is used for mixing the concrete, the drum shall be rotated at mixing speed for not less than 50 nor more than 100 revolutions after all of the ingredients of each batch are placed in the drum. When a truck mixer is used for the complete mixing of concrete, the mixing operations shall begin within 30 minutes after the cement has been intermingled with the aggregates. The size of the batch shall not exceed the manufacturer's rated capacity as shown on a metal rating plate which shall be attached in a prominent place on the mixer. The drum shall be completely emptied before receiving material for the succeeding batch. Additional requirements shall conform to AASH0 Standard M-157.
(5) 
Consistency. The aggregates, portland cement and water, shall be thoroughly mixed in accordance with these specifications to produce a homogeneous mass which can be deposited in the forms without segregation. The consistency of the mix shall be such that the slump shall not exceed three inches.
(6) 
Retempering. The retempering of mortar or concrete which has partially hardened, with or without additional materials or water, is prohibited.
(7) 
Delivery.
(a) 
Concrete shall be delivered to the site of the work with a satisfactory degree of uniformity at the consistency specified. It shall be hauled in a watertight container in which segregation will not take place and from which the concrete can be discharged freely.
(b) 
Concrete shall be delivered to the site of the work and discharged from the hauling container within a period of 90 minutes after the introduction of the mixing water to the dry materials unless otherwise specified by the Township Engineer.
Sidewalks and straight concrete curbs, curbs and gutters or Belgian block curbs shall be installed as detailed below on both sides of all streets, unless specifically excepted by the approving authority:
A. 
Foundation.
(1) 
Subgrade. The finished subgrade shall be prepared as follows:
(a) 
All soft and spongy places shall be removed and all depressions filled with suitable material, which shall be thoroughly compacted in layers not exceeding six inches in thickness.
(b) 
All fills shall be made in a manner satisfactory to the Township Engineer. The use of muck, quicksand, soft clay or spongy or perishable material is prohibited.
(c) 
The sidewalk subgrade shall have a transverse slope of 1/4 inch per foot. The top of fills shall extend beyond the walk on each side for at least one foot and shall have a maximum slope of two horizontal to one vertical.
(2) 
Slab thickness The minimum thickness of sidewalk shall be five inches, except that at driveway openings to dwellings the minimum thickness of the sidewalk shall not be less than six inches.
A. 
The development of any property will normally result in an increase of the stormwater runoff from the site. Provisions must be made for the on-site detention of this additional runoff. The detention system shall be so designed such that the total post-development rate of runoff from the site does not exceed that rate which existed before development. Current Somerset County Standards for the Design of Stormwater Detention Facilities shall be used for all drainage areas five acres and larger. For areas smaller than five acres, the Rational Method shall be used. A one-hundred-year storm frequency shall be the design storm in both cases.
B. 
Sufficient catch basins and drainage appurtenances, as approved by the Township Engineer, must be provided to channel all surface runoff to the detention facilities, except the design storm shall be a twenty-five-year frequency.
C. 
All drainage facilities not located in the public right-of-way must be encompassed by a drainage easement, which shall be dedicated to the Township of Franklin or the County of Somerset, as approved by the Township Engineer. The design and construction of all drainage structures located within the public right-of-way or dedicated easements shall be solely the responsibility of the applicant. Maintenance of the completed system will be the responsibility of either the Township of Franklin or Somerset County.
D. 
Copies of all design standards specified above are available from the Township Engineer. Conditions peculiar to a particular site may require deviations from the established standards but only upon the approval of the Township Engineer.
E. 
The standards listed shall also govern the development of any property which requires a site plan. However, dedicated easements will not be required, and neither the Township of Franklin nor Somerset County will be responsible for the future maintenance of any drainage facilities unless specifically approved by the approving authority.