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All sidewalks hereafter built, constructed, or repaired within the city shall be built, constructed or repaired with concrete of a good quality to be approved by the Building Department.
(A) Sidewalks shall be located so the interior edge of the sidewalk facing the lot is on the property line or street right-of-way line.
(B) The slope from the exterior edge of the sidewalk to the street curb shall be between 1% minimum and 2% maximum.
(C) Drainage, when required, shall be installed and connected with sewers as indicated by the plans.
(D) All concrete shall be one course, five inches thick, 4000# class “A” concrete. Class “A” concrete, as elsewhere defined, shall be used in all sidewalk construction, and shall conform to the concrete specifications which meets the following conditions:
(1) Concrete: ready mix concrete, conforming to specification ASTM C-94-55 or revisions. The slump shall not exceed three inches;
(2) Cement: air-entrained Portland cement shall be used with six bags or 564 pounds per cubic yard. The entrained-air cement shall be 4% to 7% of the total proportion; and
(3) Aggregates: both fine and coarse aggregates shall have the approval of the State Testing Laboratory and conform to the proportion as determined by them.
(E) For new construction, sidewalks shall be a minimum of five feet wide. Matching existing sidewalk widths: new sidewalks shall be reduced in width to match existing sidewalk width abutment. Unless otherwise specified, all sidewalks shall be of the width shown on the plans and not less than five inches thick at all points. The surface shall be graded one-fourth inch to the foot toward the street, and longitudinally as directed or shown on the plans.
(F) Forms may be of wood or steel. They shall be straight, free from warp and of sufficient strength to resist springing during the process of depositing concrete against them. If of wood, they shall be of at least two-inch surfaced plank. The height shall be equal to the full depth of concrete walk, five inches. The use of two-inch by four-inch side forms is prohibited and sidewalks so built will not be accepted. The height of steel forms shall also equal the depth of the sidewalk. All forms shall be thoroughly cleaned and oiled before concrete is placed against them. Curved forms shall be used on curves to conform to the planned radius.
(G) Reinforcement in the form of “rebar” shall be installed in all new sidewalks.
(1) Two #4 (one-half inch) rebar shall be installed length ways of the sidewalks located a minimum of 12-inches to a maximum of 18-inches from each edge of the sidewalk.
(2) #4 (one-half inch) rebar shall be installed perpendicular to the two lengthwise rebar’s six inches to 12 inches from the end; and another #4 (one-half inch) rebar shall be installed every three feet, zero inches until the end of the sidewalk.
(3) Optional: three rows of #4 (one-half inch) rebar length-ways of the sidewalk, located 12 inches from each edge and one through the center with
a #4 (one-half inch) rebar located six inches to 12 inches from the end and another #4 (one-half inch) rebar installed every five feet on center until the end of the sidewalk.
(4) All rebar shall overlap by a minimum of one foot and be wire tied when more than one piece is required in a run.
(5) All areas of rebar that cross perpendicular shall be wire tied together at intersections.
(6) All existing sidewalks shall be drilled six inches and new rebar shall be installed and wire tied to rebar in new sidewalk location.
(7) All rebar shall be elevated from grade by installing “chairs” or an equivalent device, to ensure the rebar is center in the concrete.
(H) A minimum of two inches of granular fill shall be placed before any rebar and/or concrete is installed.
(I) Surface finish. After the concrete is placed and thoroughly vibrated or puddled, the surface shall be troweled in a rough rosette pattern, producing an even, gritty finish. Final finish by broom is also permissible.
(J) Minimum of one coat of cure and sealant shall be applied. No other topping material is permitted unless authorized in writing.
(K) Expansion joints. Expansion joints and joint filler shall conform to the requirements of such joints in street or alley pavement. Longitudinal expansion joints one-half inch thick shall be placed along abutting buildings, concrete yard walks, curbs, walks, and intersecting sidewalks. Transverse expansion joints one-half inch thick shall be placed not more than five feet apart between intersections. Joints one-half inch thick shall be placed between sidewalk and street curbing.
(L) Joints. One-half inch joints shall be made at intervals of five feet as nearly as possible. All joints shall be made only with proper joint-cutting tools or metal division plates. Dummy joints shall be straight and clean cut.
(M) Protection. The contractor shall erect and maintain suitable barriers to protect the walk from traffic. Appropriate warning lights and barricades are required for the entire construction period. Any sections damaged prior to its acceptance shall be replaced by the contractor at his/her own expense.
(N) Inspection. Call the Building Department to have materials checked and for city inspection before pouring concrete.
(O) Condition and acceptance. Before the contract will be considered completed and the sidewalk ready for acceptance, all equipment, surplus materials and construction debris of every description shall be removed, and the entire area put in a neat and orderly condition, as stated under the preceding provisions on grading. All manholes, catch basins or other structures, disturbed or adjacent thereto, shall be examined and any debris caused by the contractor shall be removed therefrom.
(P) Repair and replacement of sidewalks. In the repair or replacement of sidewalks, the following conditions shall apply, in addition to foregoing specifications:
(1) All broken concrete or other old material must be removed and taken away;
(2) If the old base is soft, spongy or otherwise unstable, it shall be removed, and specifications under grading shall be complied with;
(3) No single square of old sidewalk shall be patched; the entire square shall be removed and replaced.
(Q) Backfilling. After forms have been removed, the space on each side of the sidewalk shall be filled to the required elevation, firmly compacted, neatly graded, and all adjacent shoulders and slopes finished to the required grade and cross-section. If extra fill material such as bank run gravel is needed, it must have the approval of the Engineer.
(R) Failure to build, construct, or repair a sidewalk in a manner consistent with this § 93.27 shall result in the rejection of the work. Rejection of the work will require removal and replacement at owner/contractor’s expense.
(Ord. 2019-6, passed 6-4-2019)