(A) Construction plans shall be submitted in conjunction with an application and site plan to be reviewed and approved by the township prior to construction containing the following information:
(1) Parcel number and name of owner for all properties having legal interest in the private road;
(2) Plans designed by a registered engineer showing location, dimension and design of the private road. The plan shall identify existing proposed elevation contours within all areas to be disturbed or altered by construction of the private road;
(3) Location of all public or private utilities located within the private road right-of-way or easement, or within 20 feet of same, including but not limited to water, sewer, telephone, gas, electricity and television cable;
(4) Location of any lakes, streams, drainageways, Michigan Department of Natural Resources regulated wetlands or trees with a caliper of 8 inches or greater, within 100 feet of the proposed private road right-of-way or easement; and
(5) Ownership or easement documents allowing for the private road.
(B) Private roads which the township has determined do not need to comply with all the standards of the Genesee County Road Commission noted above shall be constructed to the following minimum standards:
(1) The site plan shall provide for an easement or easements 60 feet in width, provided that the Township Board may reduce the required width to 40 feet where the easement will provide access to no more then 5 lots or dwelling units and is not expected to accommodate over 500 vehicle trips per average weekday based on accepted traffic generation figures. The easement for the private roads shall extend 10 feet beyond the hard surface;
(2) All private roads shall meet the public street base, pavement width, surface, slope and drainage system standards of the Genesee County Road Commission;
(3) The minimum pavement width may be reduced to 22 feet with concrete curbing and gutter on both sides thus having a total width of 26 feet;
(4) Maximum length of a private road shall be 1,600 feet and shall include a cul-de-sac with a 45-foot radius or 55-foot radius if a center landscaped island is included;
(5) Grades shall not exceed 10% with a maximum grade of 2% for a minimum distance of 30 feet from its intersection with a public right-of-way or another private road;
(6) Private road design plans shall meet the design criteria outlined in the most recent edition of the American Association of State Highway and Transportation Officials (AASHTO) Manual, “A Policy on Geometric Design for Highways and Streets,” provided the minimum horizontal curve shall be 230 feet in radius;
(7) Private roads which intersect with existing or proposed private roads or public street right- of-way should intersect at a 90-degree angle. Where constrained by environmental features, the Township Board may allow a reduced angle of intersection but in no case shall the angle be less than 70 degrees;
(8) Proposed private roads or entrances to a development shall align directly across from, or be offset at least 250 feet from, public street or private road intersections on the opposite side of the street, measured centerline to centerline. This standard may be reduced if approved by the Township Board;
(9) Private roads and driveways within a development shall align directly across from other private roads or driveways or be offset at least 150, feet measured centerline to centerline;
(10) In order to provide adequate access for emergency vehicles, 15 feet of overhead tree clearance shall be provided within the width of the pavement;
(11) Street names shall be required to assist public emergency services. Names shall be subject to Township Board approval;
(12) All signs within the private road or access easement shall be identified on the site plan and be in accordance with the Michigan Manual of Uniform Traffic Control Devices, unless the Township Board approves another type of design for consistency with the character of the development. Street signs shall be provided at all intersections. These signs shall contrast in terms of color with public street signs, and shall clearly indicate the road is private; and
(13) The diagrams attached to Ord. 392 are an integral part of this subchapter and the requirements therein shall apply to any private road approved hereunder, except as waived or altered by the Township Board. The diagrams are hereby adopted by reference as if set out in full herein.
(Ord. 392, passed 7-13-2000)