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§ 154.18 SUBMITTAL OF FINAL PLAT.
   After the Plan Commission has approved the tentative plat as outlined in § 154.17 of this chapter, the subdivider shall submit to the Plan Commission a final plat as described in § 154.19 of this chapter, together with the following supporting documents for record:
   (A)   A grading plan and profiles approved by the Inspector and City Engineer showing the existing centerline elevations of all streets and alleys in the proposed subdivision and the centerline elevations of proposed pavements. Elevations shall be referred to some permanent benchmark. Profiles shall be drawn to a horizontal scale of 50 feet to the inch and a vertical scale of five feet to the inch;
   (B)   A statement signed by the subdivider setting forth the public improvements he proposes to make in the subdivision together with plans and specifications approved by the Inspector and the City Engineer clearly describing the same and agreeing to make the improvements at his or her own expense (subject to the approval of the final plat by the City Council) within the time limit fixed by the Plan Commission;
   (C)   A statement of approval signed by the Inspector and the City Engineer certifying that the improvements described in the subdivider’s statement meet the minimum requirements of this chapter and giving an estimate of costs of such improvements, including cost of engineering and inspection;
   (D)   A duly completed and executed corporate completion bond posted with the city by the subdivider in an amount equal to the Inspector’s and City Engineer’s estimate and certified by the Corporation Counsel and City Engineer as good, valid and enforceable by the city securing the satisfactory completion of all public improvements in strict accordance with the description, plans and specifications submitted by the subdivider and approved by the Plan Commission; and
   (E)   Evidence satisfactory to the Plan Commission showing that all taxes and special assessments due on the property to be subdivided have been paid.
(Prior Code, § 154.18) (Ord. 76-O-934, passed - -1976)
§ 154.19 CONTENTS OF FINAL PLAT.
   (A)   The final plat to be submitted to the Plan Commission shall be in strict accordance with the approved tentative plat and shall be drawn by a registered state land surveyor on tracing cloth to a scale of not less than 100 feet to one inch.
   (B)   The subdivider shall supply to the Plan Commission one reproducible Mylar, plus ten blueprints of the final plat, which plat shall meet the following requirements:
      (1)   The name of the proposed subdivision shall be shown;
      (2)   The date of preparation and a proper north sign shall be shown;
      (3)   A correct survey of the property proposed to be platted shall be shown;
      (4)   A legal description of the property shall be given which includes reference to the section, township and range, government section line and corners, half section lines, the location and dimensions of all streets (with their names), alleys, easements and all other lands to be dedicated to public use; and the lines and dimensions of abutting roads and streets (with their names), alleys and easements shall be shown;
      (5)   Street name signs of a type approved by the city, as specified in § 98.111 of this code of ordinances, shall be provided at all street intersections. A diagram showing the general construction and material of these signs shall be a part of the final plat. Street signs shall be located on the northeast and southwest corners of each intersection;
      (6)   All streets shall be provided with a concrete curb and, when required to be actually constructed, shall conform with such specifications as may have been adopted by the City Council;
      (7)   Sidewalks must be provided for throughout each new subdivision and, when required to be actually constructed, shall not be less than five feet wide and not less than five inches in thickness and shall be composed of a concrete mixture to be approved by the Director of Building and Housing;
      (8)   Street trees shall be planted throughout the entire subdivision. Such trees shall be planted in the parkways not less than four feet from the sidewalk or ten feet from the lot line when sidewalks are not provided, and shall be not more than 50 feet apart, and shall be red oak, hard maple, American elm, Chinese elm or English elm, sycamore, hackberry or American or European linden;
      (9)   (a)   Surface drainage ditches shall be provided throughout the subdivision, except when storm sewers are to be provided, and located on each side of each street with a minimum distance of six feet from the edge of surfaced street and street side of ditch. The following minimum dimensions shall apply:
            1.   Depth: 18 inches;
            2.   Width, at bottom: 18 inches; and
            3.   Angle of bank with bottom: 60 degrees.
         (b)   All surface drainage ditches shall drain to the nearest drainage ditches of the Calumet Union Drainage District or one of its recognized tributaries capable of carrying the additional surface water. The official plat shall show the direction of flow of all drainage ditches and their outlet to the Calumet Union Drainage District.
      (10)   Culverts of concrete or vitrified tile of adequate strength or corrugated steel construction having a minimum diameter of 18 inches shall be located at all street intersections. The number of culverts at each intersection shall be determined by the drainage requirements and shall be shown on the official plat;
      (11)   (a)   All electric and telephone leads, mains, and conduit systems shall be placed in the easements, or alleys, and only when such easements or alleys are not so provided such leads, mains and conduit systems shall be placed in the street right-of-way; and
         (b)   All electric and telephone leads, mains and conduit systems shall be placed on the west side of all north and south easements, alleys or streets and on the north side of all east and west easements, alleys or streets.
      (12)   All lot lines shall be shown, lots and blocks numbered or lettered; building lines and easements shall be shown and determined by measurements;
      (13)   All necessary dimensions both linear and angular shall be shown. Linear dimensions shall be shown in feet and decimals of a foot, and all deflections, angles, radii, arcs and central angles of all corners along the property line of each street shall be shown;
      (14)   The description and location of all survey monuments erected in the subdivision shall be shown. Such monuments shall be either iron pipe not less than one inch in diameter and 30 inches long, or stone or concrete not less than four inches in diameter and 24 inches long. Permanent monuments shall be erected at all street corners, at all points where street lines intersect the exterior boundaries of the subdivision and at angle points of curves in each street;
      (15)   Provisions shall be made for direct connections with the principal existing streets in adjoining subdivisions;
      (16)   (a)   The plat shall have lettered upon it a statement of dedication properly conveying all lands dedicated for any other public use, and there shall be attached to the plat a certificate of title certifying the ownership of all such lands to be so dedicated by the plat; and
         (b)   Every such plat shall, in addition to all streets, alleys and parking areas, dedicate for public use or public grounds the equivalent of at least one acre of land for each 15 acres of land or fraction thereof, or one acre of land for each 75 building sites, whichever is the greater in area, permissible under the county’s zoning regulations then in effect, if the area shall be outside the city limits, or permissible under the regulations of the Zoning Code in Ch. 156 of this code of ordinances then in effect, if the area shall be within the city limits whichever shall be greater, such public lands so dedicated to be in such location as may be approved by the Plan Commission; provided, however, that, if the land so required to be dedicated under the requirements of this section is less than one acre and if the Plan Commission shall so recommend, the City Council may waive the dedication of any land for public purposes other than the requirements for streets and alleys.
      (17)   All proper certificates, seals and signatures as required by law shall be shown;
      (18)   Section line streets shall be not less than 100 feet wide; half section line streets not less than eight feet wide. The Indian Boundary Line or George Brennan Highway shall be not less than 200 feet wide. Outside the corporate limits of the city, the street or highway widths shall be as required by the county’s Map Department;
      (19)   Where alleys are provided they shall be not less than 20 feet wide;
      (20)   Where no alleys are platted, easements not less than ten feet wide shall be provided across the rear of all lots for any and public utilities. The easements shall be so laid out that a proper continuity may be had for such utilities from block to block; and
      (21)   Building setback lines shall be shown on all plats, as required by the Zoning Code in Ch. 156 of this code of ordinances or the county.
(Prior Code, § 154.19) (Ord. 76-O-930, passed 7-19-1976; Ord. 76-O-934, passed - -1976)
§ 154.20 APPROVAL OF FINAL PLAT.
   (A)   Approval of final plat by Plan Commission.
      (1)   When the Plan Commission has approved the final plat, the following official stamp shall be stamped or lettered upon the final plat, signed by the Chairperson of the Plan Commission and attested by the Secretary:
 
 
   Approved by the Plan Commission of the City of Markham, Cook County, Illinois, this       day of               , 20          A.D.
 
   Signed                                                           , Chairperson
 
   Attested                                                         , Secretary
 
 
      (2)   The Plan Commission shall then transmit the approved final plat to the City Council, together with a letter of transmittal calling the Council’s attention to all variations (if any) approved by the Plan Commission and setting forth its reasons for approving the same, and conveying to the Council such other information concerning the final plat as the Plan Commission may deem necessary.
      (3)   With approved final plat, the Plan Commission shall also transmit to the City Council the subdivider’s agreement with respect to improvements, the Inspector’s and City Engineer’s approval of improvements and all plans, specifications, estimates, completion bonds and all other documents, certificates and papers pertaining to the final plat and the subdivision platted thereon.
   (B)   Final approval by City Council.
      (1)   When the City Council is satisfied with the final plat and with all improvements, conditions and documents pertaining to the subdivision platted thereon, the City Council shall by resolution approve the plat and authorize and direct the Mayor to affix the Council’s stamp of approval and to sign the plat for and in the name of the city.
      (2)   The approval shall be attested by the City Clerk and sealed with the corporate seal of the city.
   (C)   Recordation of approved plat.
      (1)   Upon approval of a plat as provided in this chapter, the Clerk or such other official whom the City Council may from time to time designate shall forthwith record such plat in the recorder’s office of the county.
      (2)   All costs incidental to such recordation shall be paid by the submitting subdivider.
(Prior Code, § 154.20) (Ord. 76-O-934, passed - -1976)
IMPROVEMENTS
§ 154.35 STREET IMPROVEMENTS.
   (A)   The subdivider shall, at his or her own expense, improve all streets with a dust-proof surfaced roadway, complete with curb and gutter not less than 30 feet wide back to back, consisting of the following:
      (1)   A portland concrete cement pavement not less than eight inches thick;
      (2)   A cement-bound macadam roadway not less than eight inches thick;
      (3)   A seven-inch cement-soil base (as approved by the Portland Cement Association) with an asphalt surface (state highway specifications Sub-Class A-1) not less than two and one-half inches thickness;
      (4)   A water-bound macadam base not less than seven inches in thickness surfaced with not less than two and one-half inches of “built in place” dust-proof asphalt surfacing (State Highway Department Sub-Class A-1); or
      (5)   Cement or other construction similar to contiguous streets wherein conformity of construction shall more properly justify such type of street or roadway improvement.
   (B)   Industrial streets shall be reviewed for additional design standards to be approved by the City Engineer.
(Prior Code, § 154.30) (Ord. 76-O-930, passed 7-19-1976; Ord. 76-O-934, passed - -1976)
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