17.59.160 Street standards.
   Hill streets shall conform to the following standards.
   (A)   The minimum right-of-way width requirements shown below do not include any additional setback requirements of the grading ordinance.
      (1)   Streets with residences on both sides shall have a minimum curb-to-curb width of 36 feet with a ten-foot parkway on each side of the street. The parkway shall consist of a four-foot sidewalk and a six-foot landscape buffer per city standards.
      (2)   Streets with residences on one side of the street shall have a minimum curb-to-curb width of 36 feet with a ten-foot parkway on the house side of the street and a six-foot parkway on the other side. The ten-foot parkway shall consist of a four-foot sidewalk and a six-foot landscape buffer, per city standards. The six-foot parkway shall consist of a landscape buffer per city standards.
      (3)   Access roads between residential clusters shall have a ten-foot parkway on one side of the street and a six-foot parkway on the other. The ten-foot parkway shall consist of a four-foot sidewalk and a six-foot landscape buffer per city standards. The six-foot parkway shall consist of a landscape buffer per city standards. No parking is permitted on access roads.
         (a)   Access roads with maximum average daily trips of 500 or less shall have a minimum curb-to-curb width of 28 feet.
         (b)   Access roads with maximum average daily trips in excess of 500 shall have a minimum curb-to-curb width of 36 feet.
   (B)   Maximum street grade shall be 12% except that steeper grades may be allowed where determined appropriate by the Public Works Director and Fire Chief.
   (C)   Minimum centerline radius shall be 250 feet provided there is appropriate stopping and passing distance.
   (D)   Cul-de-sacs shall conform to the adopted cul-de-sac specifications of the Public Works Department.
   (E)   Street lights shall be provided in conformance with adopted city plans and specifications or as approved by the Public Works Director.
   (F)   All other street improvement standards shall conform to the adopted standard plans and specifications of the Public Works Department.
(‘78 Code, § 17.62.160.) (Ord. 2813 § 2, 2006; Ord. 1729 § 1, 1984; Ord. 1531 § 1 (part), 1979.)