All sidewalks constructed within the public right of way of any City street or highway shall be constructed in accordance with the following specifications.
(a) All Sidewalks.
(1) Width. All sidewalks shall be a uniform width of four feet.
(2) Slope. The ground from the street side edge of the sidewalk to the curb, shall slope at a rate of five-eighths of an inch per foot, plus a one-inch raise at the curb. The sidewalk shall slope toward the curb at a rate of one- quarter inch per foot (plus or minus one-eighth inch per foot).
(3) Location. The street side edge of the sidewalk shall be located no closer than five feet from the back edge of the curb.
(4) Line and grade. All sidewalks shall conform to alignment and grade specifications as shown on the construction plans submitted by the property owner, agent or contractor, and approved by the Director of Service.
(5) Utilities and drainage. Water valve boxes that fall within the sidewalk shall be protected during construction and shall be set flush with the finished grade of the sidewalk. Roof drains shall be extended under sidewalks and through curbs.
(b) Concrete Sidewalks.
(1) Preparation. Concrete shall be placed on an even and compact subgrade surface free of soft soil, vegetation or other organic material. The subgrade shall be kept damp in advance of placing concrete, to prevent loss of moisture from the concrete.
(2) Forms. Forms shall be set true to line and grade, and shall be well supported so that sagging, shifting, twisting or other deformation of the form does not occur. Form shall be coated with oil approved by the Building Inspector, or authorized representative, immediately prior to placing concrete.
(3) Compaction. When placed, the concrete shall be compacted or vibrated, by mechanical methods, so that it is thoroughly worked into all corners, joints and form surfaces.
(4) Thickness. Minimum thickness of concrete shall be four inches, except at driveway crossing, where the minimum thickness shall be six inches. No grade depressions shall be allowed at driveway crossings.
(5) Expansion joints. An expansion joint, perpendicular to the line of the sidewalk, shall be installed at all points where concrete touches the curb, an existing sidewalk or a building foundation, as well as along the new concrete sidewalk at intervals not to exceed forty feet.
(6) Finishing. The surface of the concrete shall be screeded at least twice to obtain a uniform finish. It shall then be smoothed with a wooden float, then broomed to produce a nonskid surface. The edges of the concrete sidewalk shall be rounded to a one-quarter inch radius with an edging tool at least two inches wide. Transverse joints shall be at intervals of not less than four nor more than six feet and shall be cut into the surface of the concrete with a jointing tool at least three inches wide, with a projecting cutting edge at least one and one-half inches in depth.
(7) Curing. After the final finishing and after all free water has disappeared from the surface of the concrete all exposed surfaces of the concrete shall be either sprayed with white or colorless concrete during compound, or covered with wet straw or burlap for seven days. If curing compound is used, it shall be of a type approved by the Building Inspector, or authorized representative. If burlap or straw is used, it shall be kept wet for the seven day period.
(8) Temperature limits. No concrete shall be placed without permission of the Director of Engineering when the temperature, as recorded by the National Weather Service Columbus Bureau, falls below thirty-two degrees Fahrenheit.
(9) Precast material. Precast concrete slabs, with a minimum size of four feet by four feet, may be used with approval of the Director of Service, provided they meet all other requirements and specifications set forth in this chapter.
(c) Brick Sidewalks on Concrete.
(1) Preparation. The concrete foundation shall meet all specifications for concrete sidewalks set forth in subsection (b) hereof, except for requirements for minimum thickness, which shall be three inches except at driveway crossings, which shall be six inches.
(2) Setting bed. Paving brick shall be placed upon the cured concrete foundation in a cement mortar setting bed with a minimum thickness of one inch.
(3) Joints. Cement mortar shall be placed in all joints between paving bricks. Joints shall be a minimum width of one-quarter inch and a maximum width of one-half inch.
(4) Curing. Cement mortar shall be allowed to cure for forty-eight hours before traffic is permitted on the sidewalk.
(5) Temperature limits. No mortar shall be placed without permission of the Director of Engineering when the temperature, as recorded by the National Weather Service Columbus Bureau, falls below thirty-two degrees Fahrenheit.
(6) Used material. Salvaged brick shall not be permitted, except when such bricks have a demonstrated suitability for paving, such as brick previously used for street paving.
(7) Patterns. Paving brick shall be set according to one of four patterns; running bond, herringbone, soldier course or basketweave. Such patterns are represented in City Standard Drawing No. 905A-83. All other patterns shall be approved only by resolution of Council.
(d) Brick Sidewalks on Sand.
(1) Preparation. The subgrade surface shall be even and well compacted, with all soft soil, vegetation and other organic material removed and replaced with soil approved by the Building Inspector or authorized representative. Before paving bricks are placed, the subgrade shall be treated with a soil sterilizer to retard growth of weeds and grass.
(2) Sand bed. A two-inch layer of sand shall be placed on the prepared subgrade and spread uniformly with a screed. The sand shall be wetted, then compacted by hand or mechanical tamp. Additional screeding shall be done, as needed, to smooth sand and to bring the surface of the sand to exact grade.
(3) Joints. Paving bricks shall be placed tightly together. No joints or open spaces shall be left between bricks.
(4) Driveway base. A concrete base, with a minimum thickness of six inches and conforming to specifications set forth in subsection (b) hereof, shall be installed at driveway crossings. Paving brick placed across the driveway base shall be set in a cement mortar setting bed with a minimum thickness of one inch. The cement mortar shall be allowed to cure for forty-eight hours before traffic is permitted on the sidewalk.
(5) Edging. Rigid edging shall be accomplished by one of the following methods:
A. A soldier course of paving brick, set in concrete according to details set forth in City Standard Drawing No. 905B-83, shall be placed along both the street side and house side edges of the sidewalk, and at each property line; or
B. A staked screed, two inches by four inches or larger, of cedar or a pressure treated wood, shall be permanently placed on edge along both the street side and the house side edges of the sidewalk. The top of the screed shall be no more than one inch below the finish grade of the sidewalk.
(6) Used material. Salvaged brick shall not be permitted, except when such bricks have a demonstrated suitability for paving, such as brick previously used for street paving.
(7) Patterns. Paving bricks shall be set according to one of four patterns; running bond, herringbone, soldier course or basketweave. Such patterns are represented in City Standard Drawing No. 905A-83. All other patterns shall be approved only by resolution of Council.
(Ord. 61-83. Passed 8-8-83.)
(e) Brick Sidewalks on Concrete Base With Bituminous Setting Bed.
(1) Preparation. The concrete foundation shall have a minimum depth of four inches, except at driveway crossings, which shall be six inches set on a compacted subgrade.
(2) Setting bed. Paving brick shall be placed upon the cured concrete foundation in a bituminous setting bed comprised of asphalt cement with a neoprene tack coat. Such setting bed shall have a minimum depth of three-quarters of an inch.
(3) Joints. Paving bricks shall be placed tightly together with mason's sand or a mixture of sand and cement placed between bricks. Expansion joints perpendicular to the line of the sidewalk shall be placed at intervals not to exceed forty feet.
(4) Edging. Rigid edging shall be provided by the placement of a soldier course or rowlock of paving brick set in concrete or in mortar.
(5) Used material. Salvaged brick shall not be permitted, except when such bricks have a demonstrated suitability for paving, such as brick previously used for street paving.
(6) Patterns. Paving bricks shall be set according to one of four patterns; running bond, herringbone, soldier course or basketweave. Such patterns are represented in City Standard Drawing No. 905A-83. All other patterns shall be approved only by resolution of Council.
(Ord. 79-89. Passed 9-11-89.)