Street and road location and design shall conform to the following standards:
A. Street Location And Arrangements: When an official street plan or comprehensive development plan has been adopted, streets within a subdivision shall conform to such approved plans including ACHD, PUMP or Spring Valley master streets and circulation plan.
B. Minor Streets: Minor streets shall be so arranged as to discourage their use by through traffic.
C. Stub Streets: Where adjoining areas within Valnova have not yet been subdivided but are planned to be in the future, the arrangement of streets in new subdivisions shall be such that said streets extend to the boundary line of the tract to make provisions for the future extension of said streets into adjacent areas, and shall install a turnaround, either permanent or temporary (with a temporary easement over the turnaround), as approved by the fire district with jurisdiction if the stub street is longer than one hundred fifty feet (150') in length. A reserve street may be required and held in public ownership.
D. Relation To Topography: Streets shall be arranged in proper relation to topography so as to result in usable lots, safe streets and acceptable gradients.
E. Alleys: Alleys shall be provided in commercial subdivisions unless other provisions are made for service access and off-street loading and parking. Alleys may be provided in single family and multifamily subdivisions. Public alleys shall be approved by the Ada County Highway District and the Fire District with jurisdiction. Private alleys shall be approved by the Fire District with jurisdiction and shall be in compliance with private alley regulations provided for within this Title.
F. Frontage Roads: Where a subdivision abuts or contains an arterial street, it shall be required that there be frontage roads approximately parallel to and on each side of such arterial street; or, such other treatment as is necessary for the adequate protection of residential properties and to separate through traffic from local traffic.
G. Cul-De-Sac Streets: Cul-de-sac streets shall not be more than five thousand feet (5,000') in length and shall terminate with an adequate circular turnaround having a minimum radius of fifty feet (50') of right of way including a landscape island with a minimum radius of ten feet (10'). A minimum of forty feet (40') of pavement shall be provided between the landscape island and the outside edge of the street as measured from the face of vertical curb of the island to the face of vertical curb located on the outside edge of the street. Where flush ribbon curbs or rolled curbs are used, the forty feet (40') of dimension may be taken from the back of curb of the island to the back of curb located on the outside edge of the street. All cul-de-sac streets shall include bulb outs every seven hundred fifty feet (750') to allow for emergency vehicles to turn around. No more than forty (40) lots shall be located on any cul-de-sac street between bulb outs or beyond the final bulb out. Exceptions to the requirements set forth in this subsection may be considered by the city council if approved by the fire district with jurisdiction and the highway district having jurisdiction.
H. Half Streets: Half streets shall be prohibited except where unusual circumstances make such necessary to the reasonable development of a tract in conformance with this chapter and where satisfactory assurance for dedication of the remaining part of the street is provided. Whenever a tract to be subdivided borders on an existing half or partial street, the other part of the street shall be dedicated within such tract.
I. Driveways: Driveways shall provide access to no more than three (3) dwellings. Driveways providing access to a maximum of eight (8) single-family special lot units, chapter 2 of this title, may be permitted providing that the total driveway length does not exceed one hundred fifty feet (150') and review and approval has been received from emergency service providers for the specific location and configuration. (Ord. 710, 1-14-2014; amd. Ord. 884, 9-27-2022; Ord. 924, 8-27-2024)