A. Identification And Description:
1. Proposed name of subdivision not duplicating name of any plat heretofore recorded in DuPage County, Illinois.
2. Location by section, township and range, and by other legal description necessary to clearly locate and describe the subdivision area.
3. A scale drawing prepared and certified by a registered surveyor showing the topography, the boundary lines and the area being subdivided drawn to a scale not smaller than one hundred feet to one inch (1" = 100').
4. Names and addresses of the owner and subdivider having control of the tract and the surveyor who prepared the plat.
5. North point (true north).
6. Date of survey and preparation.
B. Existing Conditions:
1. Boundary lines of proposed subdivision in accordance with subsection A3 of this section.
2. Total acreage of subdivision.
3. Existing zoning districts in proposed subdivision and adjacent tracts.
4. Location, widths, and names of all existing or previously platted streets or other rights of way showing type of improvement (if any), railroad and utility rights of way, parks and other public open spaces, permanent buildings and structures, easements, and section and corporate lines within the tract and to a distance of at least two hundred feet (200') beyond the tract.
5. Location and size of existing sewers, water mains, culverts or other underground facilities within the tract and to a distance of at least two hundred feet (200') beyond the tract; also indicating such data as grades, invert elevations and locations of catchbasins, manholes and hydrants.
6. Location map, drawn to a scale of not less than one inch equals one thousand feet (1" = 1,000'), showing boundary lines of adjoining unsubdivided or subdivided land within an area bounded by nearest arterial streets or other natural boundaries, but not less than one-half (1/2) mile beyond the subdivision boundaries in subdivisions located beyond the village limits, identifying type of use and ownership of surrounding land and showing alignments of existing streets.
7. Topographic data including existing contours at vertical intervals of not more than two feet (2'), except in unusual topographical conditions such vertical intervals may be required to be altered as determined by the village engineer. Topographic data shall refer to the United States geological survey datum. The location of watercourses, marshes and other significant features. Soil boring data and seepage tests may be required at locations and depths as determined by the village engineer.
8. Locations of or reference to locations of existing monuments or survey markers used in preparation of survey and grade elevation of each monument and marker.
C. Proposed Subdivision Design Features:
1. The proposed subdivision layout shall be in substantial accord with the official plan as amended from time to time.
2. Layout of streets showing right of way widths and street names and showing proposed through streets extended to boundaries of subdivision. Street names shall not duplicate the name of any street heretofore used in the village or its environs unless the street is an extension of or in line with an already named street, in which event that name shall be used.
3. Location and width of alleys, pedestrianways and easements.
4. Layout, numbers, typical dimensions of blocks and lots to the nearest foot and areas of all lots.
5. Building setback lines, indicating dimensions.
6. The proposed village of Oak Brook zoning districts for subdivisions to be annexed.
7. Areas, other than those listed in subsections C2, C3 and C4 of this section, if any, intended to be dedicated or reserved for nonresidential purposes, indicating in each the approximate acreage and proposed use. Such areas shall be designated by letter or number.
8. Proposed location of sewers, water mains, storm drains and detention facilities, and proposed method of sewage disposal and water supply.
9. No land which is subject to periodic flooding which lies in floodplain areas as designated in title 9 of this code, or which contains inadequate drainage facilities will be approved for occupancy in a subdivision, unless the subdivider agrees to make all necessary improvements and agrees to all required covenants which will, in the opinion of the village engineer, plan commission and board of trustees make such land safe for occupancy, and provide necessary safeguards for adjacent property which would be affected by the filling, grading, drainage or other changes being permitted or required for this subdivision.
10. The proposed location and design of any subdivision gateway.
11. The proposed improvements shall be designed and constructed substantially in compliance with the public works construction standards as referenced in section 8-1-3 of this code.
D. Information Required For Subdivision Involving A Floodplain: Accompanying the preliminary plat of each proposed subdivision which involves any portion of a floodplain as described within title 9 of this code, there shall be furnished the information and data as required within said title 9 of this code. (Ord. G-708, 12-10-2002; Ord. G-781, 6-14-2005)