General Requirements. Curb and/or combination curb and gutter shall be constructed along both sides of every street within a development. Any existing pavements damaged by curb construction shall be repaired to the standards herein and/or as shown on the final plat. Where one side of the development boundary is along an existing street, the curb and/or curb and gutter shall be constructed only on the development side. Curbs and/or combination curbs and gutters shall be constructed of Class B concrete, air-entrained, in accordance with the requirements of the standard specifications. Preformed bituminous cellular-type joint filler, one-half inch thick cut to match the cross-section of the curb, shall be used at all expansion joints at intervals not greater than 20 feet. Intermediate plate joints shall be provided at intervals not exceeding 10 feet. At places where a concrete curb abuts Portland cement concrete pavement, joints in the curb shall be placed to match the paving joints and intermediate joints shall be placed so as to create equal curb panels not longer than 20 feet. When concrete curb and gutter is required, the gutter shall be eight inches thick and shall be constructed of Class B air-entrained concrete. Joints in the gutter shall be formed simultaneously with joints in the curb. Curb and combination curb and gutter cross-sections shall be as shown in Figure 3 and 4 below. The requirements of the standard specifications regarding curing precautions must be strictly observed.

Use of Combination Curb and Gutter. Use of combination curb and gutter will be allowed in all areas and required in those areas having a bituminous pavement with a profile grade greater than 5% with the following exception:

Timing of Curb Construction. In areas with bituminous concrete pavement, required curb and/or curb and gutter shall be constructed prior to the construction of the bituminous base courses. Any required repairs to curbs and/or combination curb and gutter which are not suitable for acceptance shall be made prior to construction of the final pavement wearing course. In those areas having Portland cement concrete pavement, the curb shall be constructed after the construction and curing of the Portland cement pavement.

Alternate Curb Types. In certain instances it may be necessary or desirable to construct alternate curb types. For example, these may be required by the planning board on the perimeter of channelizing islands or in the areas of unusually heavy gutter drainage flow, or may be desired by the developer for decorative purposes or to preserve vegetation (e.g., granite block curb, rolled concrete curb, etc.). If alternate curb types are to be permitted, an appropriate construction detail shall be submitted for approval with the preliminary and final plats. Continuous slip-formed curb or combination curb and gutter may be permitted if such is considered to be acceptable by the borough engineer. The use of continuous slip-formed curb or combination curb and gutter may only be permitted if the applicant submits for review and approval details and specifications concerning equipment, materials and methods proposed for use and if the borough engineer has inspected the installation and tested and approved a suitable sample section of such curb or combination curb and gutter. In the event the borough engineer does not approve the sample section of curb or combination curb and gutter, the developer shall remove the sample section and replace it with a type of curb or curb and gutter permitted by this chapter or such other alternate as may be approved by the planning board.