[Ord. 96-2, 3/25/1996, § 1]
Construction, reconstruction, repair and maintenance of roads, streets and shoulders in the Township of New Hanover, when undertaken and performed by developers, subdividers, property owners, contractors, corporations, partnerships and/or any legal entity or individual, shall be in accordance and comply with the standards and specifications herein set forth and to the extent that such undertaking, activity or action is concurrent with, part of, or a condition of a subdivision or land development, such legal entity and/or individual shall in addition be required to comply with the terms and conditions of Chapter 22, Subdivision and Land Development, as is now in effect or is hereinafter enacted and/or amended from time to time by the Board of Supervisors of the Township of New Hanover. The terms, conditions, standards and specifications as adopted herein shall be in addition to the terms, conditions, standards and specifications set forth in Part 8 of Chapter 22, Subdivision and Land Development, specifically referencing the "design standards" as more fully set forth at length therein as are now in effect or are adopted and/or amended from time to time by the Board of Supervisors of New Hanover Township.
[Ord. 96-2, 3/25/1996, § 2]
This part shall govern all construction, reconstruction, repair or maintenance of any new or existing roads or streets in the Township under the jurisdiction of the Township Board of Supervisors.
[Ord. 96-2, 3/25/1996, § 3; as amended by Ord. 17-03, 3/27/2017]
1. 
The bottom of the excavation and the top of the fill between the outer limits of the paving or base course, when completed, will be known as the subgrade and shall conform to the lines, grades, and cross-sections given on the approved plans or as determined by the Township Engineer or other person designated by the Township Supervisors. The subgrade shall be solidly compacted to a firm and unyielding state by rolling with a power roller, weighing 10 tons minimum. Unstable areas shall be removed and replaced with suitable fill, and then re-rolled as required to provide a uniform, even surface.
2. 
Construction Methods. After the excavation or rough grading has been performed and all drains have been constructed, the subgrade shall be fine graded and shaped to the proper cross-section. It shall be compacted to a firm unyielding surface by rolling the entire area with an approved power roller having a metal weight of not less that 10 tons. Solid rock, boulders, soft clay, and all spongy material which will not consolidate under the roller shall be removed from the subgrade to a depth to be determined by the Township Engineer or other person designated by the Township Supervisors. The space shall be filled with suitable material from the excavation and the subgrade re-rolled until it presents a smooth and firm surface of the proper shape and cross-section. Crown board and straight edge or string lines shall be used for checking road and street construction.
[Ord. 96-2, 3/25/1996, § 4; as amended by Ord. 17-03, 3/27/2017]
1. 
This work shall consist of constructing a layer or layers of compacted aggregate on a prepared subgrade area.
A. 
Materials. The aggregate shall be stone, gravel, millings or slag meeting the requirements of PaDOT Type C or better, No. 2A material or approved equal.
B. 
Construction Methods. The construction methods for the subbase shall conform to the requirements as specified in Section 350.3 of PaDOT Publication 408, latest edition.
C. 
Unsuitable Subgrade. If at the time of construction, local unstable subgrade conditions are encountered, the Township Engineer may require that all areas of unstable subgrade be excavated to sufficient depth, replaced with approved material and compacted to a density and stability equal to or greater than the surrounding subgrade.
[Ord. 96-2, 3/25/1996, § 5; as amended by Ord. 17-03, 3/27/2017]
1. 
Supporting shoulders shall be constructed on all sections of projects where a base course or pavement is to be constructed without other permanent support along the sides. All shoulders shall be thoroughly compacted and graded to provide drainage from the macadam surface.
2. 
Construction Methods. Where concrete curbing is not being installed, paved shoulders are to be constructed adjacent to the paving of the proposed road. The width and type of construction, grade, and construction methods of these shoulders shall be determined by or shall meet the approval of the Township Engineer or other person designated by the Township Supervisors.
[Ord. 96-2, 3/25/1996, § 6; as amended by Ord. 17-03, 3/27/2017]
1. 
Base, binder and wearing courses shall consist of one or more layers of materials conforming to the requirement of the following sections of PaDOT Publication 408, latest edition.
A. 
Section 309 - Superpave Asphalt Mixture Design, HMA base course.
B. 
Section 409 - Superpave Asphalt Mixture Design, HMA binder course.
C. 
Section 409 - Superpave Asphalt Mixture Design, HMA wearing course.
2. 
Plant Mixed HMA Base Course.
A. 
Superpave Asphalt Mixture Design HMA pavement courses shall be placed in layers as is more fully described in PaDOT Publication 408, latest edition, for each specific design, or as may be specified otherwise by the Township.
B. 
The subbase shall be properly prepared and primed as may be required for base course placement according to PaDOT Publication 408, latest edition.
C. 
The base course shall be properly prepared and primed as may be required to receive subsequent courses. Prior to application of additional bituminous courses, existing base courses shall be inspected by the Township representative for defects such as fracture, racking or other signs of base failure, or potential failure. All areas of failure, or potential failure, shall be removed by saw cutting, and replaced, or repaired, to the satisfaction of the Township representative.
D. 
Bituminous Surface Course. The surface course shall consist of two courses, binder course and wearing course, of hot-mixed, hot-laid, asphaltic concrete, constructed on a prepared base course. The bituminous surface course shall have a total thickness, after final compaction, as indicated in Table 21-2-1 or as specified by the Township Engineer or other persons designated by the Township Supervisors.
(1) 
Materials. The materials shall conform to the requirements as given in Sections 309 and 409 of the PaDOT Specifications 408, latest edition.
(2) 
Construction Methods. The surface coursing shall be applied in strict accordance with the requirements of PaDOT Publication Form 408, latest edition. No visible moisture shall be present prior to the laying of each course. Road surface temperature shall be 50° F. or greater prior to the laying of a bituminous surface. The air temperature shall be 40° F. or greater with the temperature rising. All bituminous surface courses shall have a total thickness after compaction as indicated in Table 21-2-1 or as specified by the Township Engineer or other persons designated by the Township Supervisors. All edges shall be kept straight and sharp, forming a clean-cut line between finished road and shoulder where shoulder construction is used.
(3) 
The binder course shall be installed immediately following the base course installation.
(4) 
Delivery Slips. New Hanover Township will require delivery slips for all materials used in the construction of streets.
(5) 
Joints. Joints formed by binder or surface course laid adjacent to concrete curbs or other rigid structures shall be sealed with AC-20, twelve-inch width as directed by the Township Engineer.
Table 21-2-1 Minimum Street Construction Standards
Local & Residential Streets
Collector & Arterial Streets
9.5 mm Surface Course
1 1/2"
1 1/2"
19 mm Dense Graded Binder Course
2"
2"
25 mm Bituminous Concrete
3"
4"
PennDOT No. 2A Coarse Aggregate Subbase
4"
4"
NOTES: (1) All thickness specifications are for compacted materials. (2) Optional design cross-sections may be reviewed by the Township Engineer, and approved by the Township, provided the design has a structural number equal to or greater than that of the standard specification. (3) Permanent cul-de-sac street, marginal access street, service street and off-street parking construction shall conform to standards for local and residential streets. (4) Binder course to be installed immediately following base course installation.
[Ord. 96-2, 3/25/1996, § 8; as amended by Ord. 17-03, 3/27/2017]
All work shall be subject to inspection by the Township Engineer or authorized representative of the Board of Supervisors. Improper workmanship and materials shall be corrected or replaced under penalty of having the work rejected and the project refused for acceptance and maintenance by the Township, and/or denial or refusal of municipal escrow release requests, issuance of notice to stop work and any other civil or municipal remedy available to the Township.