Chapter 16.29
DESIGN STANDARDS
Sections:
16.29.010 Definitions.
Street classifications for primary streets, secondary streets, tertiary streets, and residential streets shall be as defined in the community street and utility standards.
(Ord. No. 487, § 1, 9-3-09)
16.29.020 Generally.
A. Land that is unsuitable for subdivision as provided in the critical areas ordinance shall not be subdivided, unless adequate corrective methods are provided by the proponent and approved by the town engineer.
B. The proposed subdivision shall meet the requirements that are provided by the community street and utility standards, ordinances, resolutions, and comprehensive plans.
(Ord. No. 487, § 1, 9-3-09)
16.29.030 Streets.
A. Street layout shall conform to the town’s street layout maps. The applicant may provide alternate plans for street layouts that provide for the most advantageous development of subdivision, the adjoining neighborhoods, and the town.
B. Existing or proposed streets or arterials that provide access to the subdivision, or combinations of existing or proposed streets and arterials that provide access to the subdivision, shall be continued along the same alignment as the existing or proposed street such that the street continues to the boundary of the subdivision, either adjacent to the subdivision or through the subdivision, whichever the case may be.
C. Dead-end streets may be allowed where the proposed dead-end street will not adversely affect the traffic flow and circulation within the area.
D. Arterial streets shall intersect within ten degrees of perpendicular to cross streets, and non-arterial streets shall intersect within twenty degrees of perpendicular to cross streets.
E. Property line corners at street intersections shall be rounded by an arc with a radius of at least ten feet.
F. The minimum requirements for right-of-way, centerline curve radii, and centerline curve tangent lengths for primary streets, secondary streets, tertiary streets and residential streets are listed in the community street and utility standards adopted by the council.
G. At intersections, the centerline shall be a straight-line segment for a minimum of one hundred feet from the center of the intersection in each direction. This one hundred feet on residential and tertiary streets may include the tangent of a centerline curve.
H. Right-of-way widths for residential streets may be reduced to fifty-three feet, provided that a four-foot municipal easement is dedicated with the plat on each side of the right-of-way.
I. The town engineer may approve angle points for minor deflections in lieu of curves for residential and tertiary streets.
(Ord. No. 487, § 1, 9-3-09)
16.29.040 Blocks and lots.
A. Blocks shall have sufficient width to provide for two tiers of lots, except on primary and secondary streets that have restricted or limited access.
B. All lots shall have a minimum depth of one hundred usable feet and shall meet all requirements of Title 17, Zoning.
C. Block lengths shall not exceed six hundred sixty feet.
D. Every lot shall have access to public right-of-way.
E. The ratio of the depth of any lot to its width shall not be greater than three to one.
F. Residential lots that are adjacent to primary streets, secondary streets, Interstate 90, or State Route 17 shall be at least one hundred twenty feet in depth.
G. The first twenty-five feet of side lot lines from the front property line shall be within twenty degrees of perpendicular to the front property lines which they intersect.
H. Lot lines that are common between two lots shall be composed of straight line segments.
(Ord. No. 487, § 1, 9-3-09)
16.29.050 Pedestrian paths.
The subdivider may be required to provide right-of-way for activity trails and pedestrian paths at locations other than within the right-of-way for streets and utilities. Activity trails shall be provided for as shown on the activity trail master plan that was adopted by town council. Pedestrian paths may be required where pedestrian routes would otherwise be more than one-quarter of a mile longer if the pedestrian path were not provided.
(Ord. No. 487, § 1, 9-3-09)