Upon 30 days' notice from the borough, it shall be the duty of every owner of real estate abutting upon any street in the borough now paved and curbed or which may hereafter be paved and curbed to construct, reconstruct and repair a sidewalk in front of or alongside such property and thereafter to maintain such sidewalk in a safe and usable condition. Every such sidewalk shall conform to all the requirements set forth in this article or adopted in conformity therewith.
All sidewalks shall be constructed, reconstructed and repaired of concrete only and according to specifications determined from time to time by the Borough Engineer, provided that any sidewalk existing at the time of enactment of this article and having been lawfully constructed of flagstone may, at the discretion of the owner of the abutting property, be reconstructed or repaired of flagstone when reconstruction or repair shall be undertaken.
All sidewalks shall conform strictly to the line and grade obtained by the property owner from the Borough Engineer, shall be at least four inches thick and five feet wide and shall be a uniform distance of 30 inches from the outer line of the curb, such outer line of the sidewalk to be constructed one inch higher than the top of the curb, and such sidewalk shall rise 1/4 inch per foot for the full width of the walk.
Any property owner, upon his own initiative and without notice from any borough authority, may construct, reconstruct or repair a sidewalk in front of or alongside his property, provided that such owner shall first make application to the Borough Engineer for the line and grade and shall conform to all the requirements of this article as to line and grade and as to material used.
If any property owner shall, within the time limit specified herein, fail, neglect or refuse to construct, reconstruct or repair a sidewalk or, having undertaken any such work, shall fail to conform to all applicable requirements set forth in this article or adopted in conformity therewith, the borough shall have the authority to construct, reconstruct or repair such sidewalk or to complete or rectify any work undertaken, and the borough shall collect the cost of such work, with an additional charge of 10% thereof, from such property owner in any manner authorized by law.