(A) Subgrade. The subgrade of all sidewalks shall be constructed to the required depth below the finished surface in accordance with the plans and specifications provided by the Street Commissioner and shall be thoroughly compacted to a firm, smooth surface. All soft or spongy places not affording a suitable subgrade must be removed and replaced with a suitable material and compacted according to these specifications.
(Prior Code, § 95.056)
(B) Forms. All forms used in sidewalk construction shall be of metal or wood and be straight and free from warp and of sufficient strength to resist springing during the process of depositing concrete against them. If made of wood, they shall be of two-inch surfaced plank. If made of metal, they shall be approved by the Street Commissioner. The forms shall be the full depth of the walk and shall be securely staked, braced, and held firmly to required line and grade. All forms shall be thoroughly cleaned and oiled before concrete is placed therein.
(Prior Code, § 95.057)
(C) Expansion joints. Expansion joints shall be placed in sidewalks at intervals not exceeding 25 feet. A preformed filler shall be used in the expansion joints and be composed of a durable elastic compound of mineral or vegetable matter. The thickness of an expansion joint shall not be less than one-half inch, and its length shall be equal to the sidewalk width, and its width shall not be less than the thickness of the sidewalk. Preformed filler of one-inch thickness shall be placed where the sidewalk joins with any curb or gutter.
(Prior Code, § 95.058)
(D) Dimension and grade of sidewalk.
(1) Slope. All sidewalks shall have a slope of one-quarter of an inch to the foot toward the center of the adjoining street.
(2) Grade. The surface of any sidewalk, when completed, shall be in conformity with the grade given by the Street Commissioner.
(3) Width. All sidewalks shall be a minimum of five feet in width except in case of the continuation of a pre-existing sidewalk which is less than five feet in width, but in no event shall a sidewalk be constructed that is less than four feet in width. If the sidewalk under construction is a gap between preexisting sidewalks in the same block it shall be constructed according to the width of the wider sidewalk adjoining it.
(4) Thickness. All sidewalks shall be four inches in thickness.
(Prior Code, § 95.060)