a. Cul-de-sacs shall be as short as feasible and serve no more than the number of dwelling units specifically approved by the Planning Commission.

b. The standard details show the minimum requirements for cul-de-sac turnaround areas. Other turnaround geometries may be used when conditions warrant and the Director approves the design and application of its use. Cul-de-sacs in commercial or industrial developments shall provide adequate turnarounds for the type of vehicle serviced by the street, as approved by the City Engineer.

c. The minimum curb radius for transitions into cul-de-sacs bulbs shall be 25 feet and the right-of-way radius shall be sufficient to maintain the same right-of-way to curb spacing as in the adjacent portion of the street.

d. The finished pavement grade from the center point of cul-de-sac turnarounds to the curb shall not be less than two and one-half percent negative (-2.5%).

e. Cul-de-sac curb profiles shall be provided with a smooth vertical alignment. Curbline grade changes in excess of 1% shall use a vertical curve, with a K-value not less than three (3).