10.450 Cul-de-sacs, Minimum Access Easements, and Flag Lots.
(1) Cul-de-sacs, minimum access easements and flag lots shall only be permitted when the approving authority finds that any of the following conditions exist:
(a) One or more of the following conditions prevent a street connection: excess slope (15%) or more), presence of a wetland or other body of water which cannot be bridged or crossed, existing development on adjacent property, presence of a freeway or railroad.
(b) It is not possible to create a street pattern which meets the design requirements for streets.
(c) An accessway is provided consistent with the standards for accessways in Section 10.464 through Section 10.466.
(2) If a cul-de-sac is necessary, then the following standards shall apply:
(a) Cul-de-sac streets shall be as short as possible and shall not exceed 450 feet in length.
(b) Cul-de-sac streets shall have a vehicle turnaround area with a minimum right-of-way radius of forty-five (45) feet and a minimum paved section radius of thirty-seven (37) feet.
(3) If a flag lot is necessary, then the following standards shall apply:
(a) The access drive, or flag pole, shall have a minimum width of twenty (20) feet.
(b) The minimum lot frontage for a flag lot shall be twenty (20) feet.
(c) The required front yard setback shall be measured from the lot frontage property line.
(d) The minimum driveway throat width shall be determined as per Section 10.550.