1111.05   INSTALLATION OF IMPROVEMENTS.
Installation of street improvements shall be in accordance with approved plans, specifications and profiles as required by Section 1111.04 and shall be constructed under the supervision of the City Engineer or his representatives. The City Engineer and the Director of Public Service shall be notified forty-eight hours in advance of the start of actual construction work, whether initial or after cessation of work due to any cause.   Any construction work done at a time when the City Engineer is not represented shall be subject to removal at the owner's own expense. Construction and materials shall be in accordance with the current State of Ohio, Department of Highways Construction and Material Specifi­ cations along with specifications presently in use by the City and such standards as are partially enumerated herein.
   (a)   Insurance. No street improvement work on or in any proposed street shall be performed by the owner or his or her agents until the necessary easements have been granted to and accepted by the City and until the owner has caused the same to be recorded, nor shall any street improvement work be performed until insurance saving the City harmless from any and all claims for liability whatsoever has been furnished by the owner. The amount of this insurance shall not be less than one million dollars ($1,000,000) for personal injury and shall cover property damage in the amount of not less than five hundred thousand dollars ($500,000).
   (b)    Grading. The street shall be graded over its full width and in accordance with the approved plan previously flied with the City with particular care being taken to remove topsoil, vegetation and such other material that would not be suitable for construction of subgrades. This work shall be completed before any underground work begins. All trench excavations under proposed or existing pavements shall be backfilled with granular material or compacted excavated material according to specifications given herein.
   (c)   Sanitary Sewers. All materials and workmanship shall be designed and built in accordance with the latest specifications of the Cuyahoga County Sanitary Engineering. Department. Sanitary sewer design shall be in accordance with uniform rules, regulations and standards for the design and construction of sewage improvement.
   (d)   Storm Sewers. All land included in a plat shall be adequately drained by trunk and local storm sewers so that all surface water can be conducted as to a natural watercourse in conformity with the City network of sewers determined by the City Engineer. No surface or subsurface drainage shall be permitted to enter into a sanitary sewer under any conditions. Materials and construction for sewers and appurtenances shall conform to the latest specifications of the Uniform Rules, Regulations and Standards for the Design and Construction of Sewage Improvement, unless otherwise stipulated herein or determined by the City Engineer because of local conditions.
   (e)   Water mains. All water main materials and construction shall conform to the latest specifications as set forth by the City of Cleveland Department of Public Utilities.
   (f)   Sidewalks. Sidewalks shall be installed in accordance with City specifications and shall be located six inches off the street line. Sidewalks shall be installed on each side of the new streets, at the intersections and at such time and in such locations which will permit pedestrian traffic to use the same continuously from the farthest occupied dwelling to the nearest improved dedicated street.
   (g)   Pavements and curbs. All streets in the proposed allotment must be paved with a concrete pavement or the equivalent thereof with curbs in the central portion of the right of way to standards on file in the office of the City Engineer, partially enumerated hereinafter, and to the following minimum widths and horizontal curves:
      Main thoroughfares       28' curb to curb   5° curve
      Arterial streets   24' curb to curb      10° curve
   Minimum longitudinal grade shall be five-tenths per cent.
   Minimum centerline grade in a cul de sac shall be one per cent.
   Maximum longitudinal grade shall be seven per cent.
   Lateral grade or crown shall be straight and shall not be less than four inches.
      (1)   Compaction. Compaction of the embankment ami subgrade to minimum standards is an absolute necessity. Embankments must be compacted to a minimum of ninety-five percent of the maximum density of optimum moisture. Soils used in embankments shall weigh not less than ninety pounds maximum dry weight per cubic foot when used below the upper twelve Inches of the subgrade and not less than one hundred three pounds maximum dry weight per cubic foot when used in the upper twelve inches of the subgrade. In cuts or elsewhere, soft subgrade, In which satisfactory stability cannot be obtained by draining, moisture control and compaction, shall be removed and suitable material used to obtain a stable subgrade. Perceptible movement, or vibration, or displacement of the soil under loads imposed by the required compactors, or trucks moving over the subgrade, is evidence of unsatisfactory stability or compaction requiring correction or replacement of material. In any case, soil weighing less than one hundred three pounds maximum dry weight per cubic foot shall not be used in the upper twelve inches of the subgrade.
      (2)   Concrete pavement. Concrete pavement shall consist of a seven inch thick reinforced slab to be machine spread and finished unless otherwise permitted by the City Engineer. When constructed with integral curbs, the thickness shall be uniform; when constructed with a separate curb, a thickened edge extending two feet toward the center of the slab and three inches greater in thickness at the edge shall be provided. All concrete pavement construction shall be in accordance with Ohio Department of Transportation specifications..
      (3)   Curbs. Integral concrete curbs or combination curbs and gutters shall be constructed in accordance with standards on file in the office of the City Engineer. Minimum radius of curb lines at intersections shall be thirty feet.
      (4)   Drainage. Drainage of property shall be into the street pavement, the berms of grass preferably being sloped at an optimum grade of three­ eighths inch per foot. This drainage requirement can only be changed by the City Engineer in specific cases, where the topography of the ground is such that drainage into the street pavement is impracticable from an engineering standpoint.
   (h)   Underground Telephone. Electric Power and Street Lighting. In all subdivisions, the following procedure and requirements shall be met:
      (1)   The preliminary plat with respect to any new subdivision shall be submitted to all utility companies serving the subdivision as well as the Director of Public Service and the City Engineer, for their recommendations.
      (2)   Utility easements at least five feet in width for cable television, natural gas, telephone and electric power, and street lighting distribution lines and facilities, shall be provided on all front lot lines and along certain side or rear lot lines where necessary.
      (3)   Prior to granting final approval, the subdivider shall have installed or shall have furnished adequate bond for the ultimate installation, in accordance with the requirements of the Electric Code of the·City, of the following:
         A.   Underground telephone cables;
         B.   Underground. distribution cables for power and street lighting from a common distribution system, and the equipment and housing necessary in the operation of the distribution system;
         C.   Adequate provision for street light lamps and standards in accordance with a design approved by Council.
      (4)   The Planning Commission may authorize a variance from these regulations when undue hardship may result from strict compliance. In granting any variance the Planning Commission shall prescribe only conditions that it deems necessary or desirable for the public interest and finds that there are such special circumstances or conditions affecting such property that the strict application of the provisions of this section would deprive the applicant of the reasonable use of his land.
(Ord. 1966-98. Passed 11-8-66; Ord. 1977-124. Passed 11-15-77; Ord. 1983-46. Passed 4-12-83; Ord. 1992-61. Passed 6-9-92; Ord. 1994-9. Passed 3-22-94.)