(A) Drainage. When required, suitable drainage shall be installed and connected with sewers as indicated by the plans.
(B) Forms. 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 2-inch surfaced plank. The height shall be equal to the full depth of concrete walk, which shall be 5 inches. The use of 2-inch x 4-inch side forms is prohibited, and sidewalks so built will not be accepted. The height of steel forms shall also equal the depth of 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.
(C) 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 lbs. per cubic yard. The air-entrained cement shall be 4 to 7% of the total proportion.
(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.
(D) Dimensions. 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 ¼-inch to the foot toward the street, and longitudinally as directed or shown on the plans.
(E) 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 brooming is also permissible.
(F) Joints. 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.
(G) Expansion joints. Expansion joints and joint filler shall conform to the requirements for the joints in street or alley pavements. Longitudinal expansion joints ½-inch thick shall be placed along abutting buildings, concrete yard walks, curb walks and intersection sidewalks. Transverse expansion joints ½-inch thick shall be placed not more than five feet apart between intersections. Joints ½-inch thick shall be placed between sidewalk and street curbing.
(H) Protection. The contractor shall erect and maintain suitable barriers to protect the walk from traffic. Any sections damaged prior to its acceptance shall be replaced by the contractor at his own expense.
(I) 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.
(J) Repair or replacement of sidewalks. In the repair or replacement of sidewalks, the following conditions shall apply, in addition to the foregoing specifications:
(1) All broken concrete or other old material shall be removed and taken away.
(2) If the old base is soft, spongy, or otherwise unstable, it shall be removed.
(3) No single square of old sidewalk shall be patched; the entire square shall be removed and replaced.
(K) Backfilling. After the 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.
(Ord. 483, passed 2-28-00) Penalty, see § 10.99