For developments along the portions of streets designated on Map 4 (Sidewalk Widening Lines) in Appendix A of this Chapter, a sidewalk widening shall be required, providing a total sidewalk width of:

(a)        17 feet along Third Avenue;

(b)        15 feet along Nevins Street; and

(c)        13 feet along Fifth Street.

The total sidewalk width shall be measured perpendicular from the street line. Such sidewalk shall be improved to Department of Transportation standards and shall be provided at the same level as the adjoining public sidewalk and be accessible to the public at all times.

Awnings and canopies shall be considered permitted obstructions within a sidewalk widening provided that no structural posts or supports may be located within any portion of the sidewalk or such widening.