(A) Streets.
(2) Where the proposed subdivision fronts lots on only one side of a public street, the subdivider shall be responsible for half of the street to be improved as described above. Whenever land adjacent to an existing public street is subdivided with lots facing thereon, and the street is not improved to a standard as high as that required for an interior street of similar character, the subdivider may be required to improve the public street, but in no case shall the required expenditure for the improvement exceed that required for a similar interior street. Any improvement of an existing public street shall be subject to the approval of the public authority having jurisdiction.
(3) Street profile plans and cross-sections for all subdivision streets shall be prepared by an engineer in accordance with the requirements of §§ 154.095 through 154.099, and the engineer, as agent for the subdivider or his or her contractor, shall be responsible for establishing the proper lines and grades for all earth work and drains.
(4) Not less than one street of a width in accordance with the provisions of §§ 154.056 and 154.096(A)(3) shall be provided to furnish the subdivision with access to an existing improved public highway. The access street shall be improved by the subdivider in accordance with the standards appropriate to its function, whether or not it lies partly or entirely outside the subdivision.
(B) Storm drainage.
(1) The storm drainage improvements shall conform to the system designed and established by the engineer and approved by the Plan Commission. Computations may be required for the entire watershed or drainage basin of which the subdivision is a part. The design and construction of such structures shall be in accordance with the specifications of §§ 154.095 through 154.099.
(2) In all residential subdivisions, and in all business and industrial subdivisions, underground storm sewer systems shall be constructed where required, and installation shall be completed prior to the placement of any surfacing material.
(3) Special consideration shall be given to the avoidance of problems which may arise from concentration of stormwater runoff onto adjacent properties. All storm drainage shall be conducted or connected to an approved outfall.
(D) Curbs and gutters. Curbs and gutters shall be provided in all subdivisions.
(E) Sidewalks.
(1) Sidewalks shall be required on both sides of all streets in subdivisions containing lots less than 20,000 square feet in size.
(2) In subdivisions containing no lots smaller than 20,000 square feet, sidewalks may be required in accordance with the following standards, to provide:
(a) A reasonable extension of an existing sidewalk system;
(b) Continuity between existing systems of sidewalks;
(c) Adequate pedestrian circulation in the vicinity of schools, shopping centers or other community facilities; and
(d) For pedestrian safety.
(3) In subdivisions where sidewalks are required, pedestrian ways bisecting blocks shall also be improved with sidewalks constructed to the same standards.
(F) Street trees. Street or shade trees shall be planted by the developer within the public right-of-way of all streets of the subdivision and may be planted within lot boundaries of the subdivision. Trees shall have a trunk diameter, measured 12 inches above the ground, of not less than three inches, and shall be spaced not more than 40 feet apart. The plantings shall be restricted to thornless honey locust, hackberry, sugar maple, red oak or pin oak, sycamore, Norway maple, ironwood, columnar maple or hard maple, American or European linden, and any other of the hardwood species approved by the Plan Commission. Chinese elm, box elder, willow, poplar and similar fast-growing brittlewood species are prohibited.
(G) Street signs. Signs giving names of streets shall be erected at all street intersections. Street signs shall be provided by the subdivider in accordance with village standards and specifications, and shall be located so as to identify every street within the subdivision.
(H) Street lights.
(1) In residential subdivisions, street lighting shall be provided at all street intersections within or abutting the subdivisions and at such other locations designated by the Village Engineer. The street light system shall have a minimum average maintained horizontal illumination of 0.6 footcandles, or that minimum designated by the latest approval of the American National Standards Institute contained in the American National Standard Practice for Roadway Lighting, whichever is greater. Uniformity shall be a ratio not exceeding six to one, as determined in the average level to minimum point method.
(2) Business area street light shall have a minimum average maintained horizontal illumination of 1.2 footcandles or that minimum designated by the latest approval of the American National Standards Institute contained in the American National Standard Practice for Roadway Lighting, whichever is greater. Uniformity shall be a ratio not exceeding three to one, as determined in the average level to minimum point method.
(I) Water supply facilities.
(1) A water supply, treatment and distribution system, including water service pipes to each lot and appurtenances, shall be installed to serve each subdivision.
(2) All water distribution systems shall be designed and constructed in compliance with the standards set forth by the village, Environmental Protection Agency and other applicable governmental agencies.
(K) Sanitary sewage facilities.
(1) A sanitary sewage system, including service pipes to each lot and appurtenances, shall be installed to serve each subdivision.
(2) All sanitary sewage systems shall be constructed in compliance with the standards set forth by the Metropolitan Sanitary District of Greater Chicago, the Illinois Environmental Protection Agency and other applicable governmental agencies.
(L) Planting screens. The subdivider shall plant, install, construct or otherwise provide all required fences, dense planting strips or other required buffers along lot lines of houses within any development backing up to or adjoining any existing or future expressway or arterial street; railroads; or commercial area; or to enclose any hazard which, in the opinion of the Plan Commission, might create a public nuisance.
(2000 Code, § 155.069) (Ord. 876, passed 8-4-1975) Penalty, see § 154.999