All curbs in the Borough shall be constructed strictly in accordance with the specifications hereinafter set forth.
A.
Dimensions. Unless otherwise specified, concrete curbs shall be constructed in accordance with the "Typical Curb Section for Municipal Roads" herein shown as Figure 1.[1] The approximate dimensions are: depth, 18 inches; top width, six inches; width at 1/2 depth, nine inches; and bottom width, nine inches. The batter on the front face shall be three inches in nine inches and the rear face shall be vertical. The top face of the curb shall be velled or sloped at the rate of 1/4 inch per foot, and the radius of the outside edge shall be one inch.
[1]
Editor's Note: Figure 1 is on file in the Borough offices.
B.
Forms.
(1)
The forms used may be of metal, or of thoroughly seasoned and dressed lumber, not less than two inches in thickness. Forms must be placed in proper alignment and thoroughly staked and braced. Before any concrete is deposited, the forms shall be clean and free from dirt and thoroughly oiled. Forms which have become bent or warped, and which in the opinion of the Borough Engineer are unsuitable for use, will be rejected and shall be removed from the site of the work.
(2)
Forms for radius curb may be of metal or, if constructed of wood, shall be not more than 1/2 inch in thickness, dressed and thoroughly battered together. They shall be so set to give the same batter of the street face as straight curb.
C.
Body of curbs. Concrete for curbs shall be Class B air-entrained portland cement concrete, in accordance with the 1961 New Jersey State Highway Department Standard Specifications, except that the stone shall be 3/4 inch. As the concrete is placed into the forms, it shall be thoroughly tamped and compacted or vibrated to insure that it completely fills the forms and that all stone is completely imbedded in the mortar. After the concrete has sufficient set and strength, the outside edge of the curb shall be properly rounded with a curb-edging tool having a radius of one inch. The face of the forms shall be removed and the outside faces of the curb rubbed and finished with a steel float. Plastering will not be permitted, and the use of gravel in any form is absolutely prohibited.
[Amended 10-24-1967 by Ord. No. 439]
D.
Joints. The curb shall be constructed in sections 10 feet long. Each section is to be separated by a three-sixteenths-inch metal form plate or other accepted material having the approval of the Borough Engineer. The plates shall extend through the whole thickness and depth of the curb. The plates shall act as spacing plates to the forms, and the joints so formed will serve to take up expansion and contraction.
E.
Driveway openings. Where required, driveway openings shall be provided by lowering or depressing the top of the curb five inches below normal elevation across the entire width of the driveway. Care is to be taken to provide a neat and attractive transition from the normal curb height to the depressed curb height.