(1) The typical street pavement width for private subdivisions where separate lots are sold shall be twenty-eight feet (28'), lip of curb to lip of curb. Additional width may be required as determined by the City Engineer, Fire Chief, and the Community and Economic Development Director. All cul-de-sacs and turnarounds shall conform in size and design to the City technical standards and/or the zoning ordinance. The street grades, lengths, and radii shall conform to the City technical standards and/or the zoning ordinance. There shall be provisions made to collect the surface runoff at the edge of the asphalt width. This shall typically be curb and gutter. Roll type gutter or an approved sodded depression or similar solutions may be considered where unusual circumstances occur.
Sidewalks will be placed as directed by the City Council after recommendation from the Planning Commission. More than one (1) point of access to a private subdivision/development may be required if deemed necessary by the construction staff.
(a) The street structure shall be a minimum of three inch (3") thick asphalt and eight inch (8") thick roadbase. An additional subgrade material or geotextile fabric may be required as determined by the soil conditions. The developer's engineer shall submit street design(s) for review. All private streets shall be kept free of any device placed solely for controlling the speed of vehicle traffic i.e., "speed bumps." Any gates or planters within a private street right-of-way shall be approved by the City.
(2) Private drives of not less than twenty feet (20') of clear pavement width must be constructed to serve one (1), but not more than two (2) dwellings which have a setback of more than one hundred feet (100') from a public or approved private street.
(a) Private drives shall not be longer than three hundred and fifty feet (350') except as granted by the construction staff. Any private drive longer than one hundred and fifty feet (150') shall be provided with an alternative turnaround approved by the Fire Department, City Engineer, and development staff. Alternative turnarounds are only allowed as approved by the Fire Department, the City Engineer, and development staff as shown in Appendix A-7 of the Layton City zoning ordinance. Residential buildings serviced by the private drive shall be equipped throughout with an NFPA 13D automatic fire sprinkler system. Such drives may not be converted to public ownership. Any gates or planters within a private drive right-of-way shall be approved by the City and shall not impede the required clear width. No parking will be allowed in the twenty feet (20') of pavement area. Private drives shall be constructed so as to support the weight of a fire apparatus to within one hundred and fifty feet (150') of any structure.
(3) Private lanes of not less than twenty feet (20') of clear pavement width and having additional driveable surface of at least six feet (6') may be constructed to serve not more than five (5) dwellings.
(a) Private lanes shall be looped or shall provide a turnaround meeting the standards of a public street. Dead end private lanes shall not be longer than five hundred feet (500') except as may be allowed by Chapter 19.07 of the zoning ordinance. Additional requirements may be imposed to address enhanced needs created by additional length cul-de-sacs. Private lanes shall be posted as no parking and shall be kept free of any device placed solely for controlling the speed of vehicle traffic i.e., "speed bumps." Private lanes may not be converted to public ownership.
(b) Private lanes shall be constructed such, for a full twenty-six feet (26') of unobstructed width, as to be able to support the weight of any fire apparatus. Any gates or planters within a private lane right-of-way shall be approved by the City and shall not obstruct the minimum required clear width.
(4) Private driveways through planned residential unit developments (PRUD), planned dwelling groups, and condominiums, shall be constructed with twenty-six feet (26') of clear width between all parking, architectural, and landscape features where the driveway is designated as a fire lane. Where parallel parking is allowed, the minimum driveway width shall be thirty-two feet (32'). Where ninety degree (90º) parking is found along a private driveway, the driving width may be reduced to twenty-four feet (24') of clear width between all parking, architectural, and landscape features. For parking at a lesser angle than ninety degrees (90º) and not designated as a fire lane, the driveway width may be twenty feet (20'). Private driveways shall be kept free of any device placed solely for controlling the speed of vehicle traffic i.e., "speed bumps."
(a) Private driveways shall be constructed such as to be able to support the weight of any fire apparatus.
The developer or subsequent homeowner's association will be responsible for the maintenance of all facilities within the property lines of the development and those facilities off the property as designated by the City Engineer and which, either in part or wholly, service the private subdivision/development. An easement shall be deeded to the City over any street or driveway as deemed necessary by any agent of the City.
Where a private subdivision/development has frontage on an existing or proposed public street, the subdivider shall be responsible for the dedication of any right-of-way and construction of any public improvements as described in Chapter 18.24, Streets, and Chapter 18.36, Improvements.
Ord. No.97-35, Recodified, 6/19/1997
Ord. No. 1020, Amended, 5/5/1994
Ord. No. 08-48, Amended, 11/6/2008
Ord. No. 09-09, Amended, 7/16/2009