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, subdivision streets shall conform to such plans.
B. Minor Streets: Minor streets shall be so arranged as to discourage their use by through traffic.
C. Stub Streets: Where adjoining areas are not subdivided, 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 have a cul-de-sac or temporary cul-de-sac. 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. Public alleys shall be approved by the Ada County Highway District and Eagle Fire District. Dead end public alleys shall be prohibited in all cases. Private alleys shall be approved by the Eagle Fire District 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 seven hundred fifty feet (750') 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 curb of the island to the face of curb located on the outside edge of the street. One traffic control sign stating that on street parking is prohibited within the turnaround shall be installed at the entrance of the turnaround on the driver's side of the street. The following exceptions may be considered by the council:
1. Alternative types of turnarounds for cul-de-sacs which will provide access to less than thirteen (13) dwelling units may be permitted by the city if approved by the fire department and the highway district having jurisdiction.
2. In zoning districts which prohibit densities greater than one dwelling unit per two (2) acres, cul-de-sac streets up to a maximum of one thousand five hundred feet (1,500') in length may be permitted by the city if approved by the fire department and the highway district having jurisdiction. No more than twenty (20) dwelling units shall be permitted on said cul-de-sac.
3. In zoning districts which prohibit densities greater than one dwelling unit per five (5) acres, cul-de-sac streets up to a maximum of two thousand eight hundred feet (2,800') in length may be permitted by the city if approved by the fire department and the highway district having jurisdiction. No more than twenty (20) dwelling units shall be permitted on said cul-de-sac.
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 title 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. Private Streets: Private streets that provide access to no more than ten percent (10%) of the lots may be permitted within planned unit developments provided that the standards within section 9-3-2-5 of this chapter are met.
J. Driveways: Driveways which provide access to no more than two (2) lots shall be allowed within any subdivision provided at least one (1) of the lots has the minimum street frontage required in section 8-2-4 of this code.
(Ord. 566, 5-15-2007; amd. Ord. 820, 12-10-2019; Ord. 858, 10-26-2021)