A. Compliance With County Plan And Standards: The street and road layout shall conform to the master plan and official county roads map as adopted by the planning commission. All streets and roads, public and private, must be designed, constructed and paved to county standards and shall be approved by a professional engineer.
B. Minor Streets: Minor streets shall be laid out to discourage through traffic.
C. Stubbed Streets: Stubbed streets shall be provided where needed to provide future access to adjacent undeveloped land. Streets must be laid out to connect to existing stubbed streets in adjacent subdivisions. Not more than six (6) lots shall front on a dead end street, including those where a temporary cul-de-sac turnaround is provided.
D. Intersections:
1. The number of intersections between minor streets and major streets shall be kept to a minimum.
2. No more than four (4) streets shall enter an intersection.
3. Streets shall intersect at ninety degree (90°) angles.
4. Two (2) subordinate streets meeting a through street from opposite sides shall either meet at the same point, or their centerlines shall be offset at least two hundred feet (200').
E. Highway Abutments; Encroachment Permit Required: Where a residential subdivision abuts a state or county highway, an encroachment permit must be obtained from the state department of transportation or the county.
F. Right Of Way Widths: Right of way widths for streets and roads shall be as follows:
1. Major collector: Minimum of sixty six feet (66') wide.
2. Minor collector: Minimum of fifty feet (50') wide.
3. Frontage road: Minimum of fifty feet (50') wide.
4. Private street or road: Minimum of twenty eight feet (28') wide.
G. Shoulders: Where no curbs are installed, minimum six foot (6') wide shoulders must be provided.
H. Half Width Streets: Half width streets are not permitted, except to complete an already existing half street.
I. Dead End Streets: Dead end streets, other than permanent cul-de-sacs, are permitted only as stubbed streets to provide future access to adjoining property and must include temporary turnarounds. Temporary bulb turnarounds must be a minimum of fifty feet (50') in diameter.
J. Cul-De-Sacs: No more than six (6) lots may front on a permanent cul-de-sac. Permanent cul-de-sacs must include a turnaround bulb a minimum of eighty feet (80') in diameter.
K. Grades: All roads and street grades shall be designed as follows:
1. Major and collector roads and streets are limited to a maximum grade of eight percent (8%). Sustained grades shall be limited to five percent (5%).
2. Minor roads and streets are limited to a maximum grade of ten percent (10%). Sustained grades shall be limited to seven percent (7%).
3. Cul-de-sacs with a negative grade progressing toward the turnaround shall be limited to a maximum grade of six percent (6%). The cul-de-sac shall terminate with a grade not to exceed three percent (3%) for the last one hundred feet (100') of traveled surface. Cul-de-sacs shall be limited to a maximum length of nine hundred feet (900') and shall have adequate easement for drainage.
4. Intersections must have a vertical alignment such that the grade shall not exceed three percent (3%) for a minimum distance of fifty feet (50') each way from the centerline of the intersection.
5. Roads in mountainous terrain may be required to have grades less than otherwise allowed in order that they can be safely negotiated and snow removed in the winter.
L. Street Names And Numbers:
1. Where subdivision streets are in basic alignment with existing streets, they shall have the same name and number. No subdivision street names shall be duplicates of street names elsewhere in the county.
3. All lots shall have assigned street numbers on the final plat. (Ord. 01-08-27A, 8-27-2001, eff. 10-8-2001)
Notes
| 1 | 1. See subsection 7-10-2B of this code. |