Subd Ord 1968 - Laserfiche WebLink

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prohibited. 9. A tangent at least 100 feet long shall be required between reverse curves on arterial and collector streets. 10. Streets shall afford maximum visibility and safety and shall intersect at right angles, where practicable. 11. Dedication of half -width streets shall be prohib- ited, except where it is essential for the reasonable develop- ment of the subdivision in conformity with the other re- quirements of this ordinance. Where a half street has been dedicated adjacent to a subdivision, the remaining half of the street shall be dedicated by the subdivider of the adjoining land. 12. Permanent dead-end streets and cul de sacs shall have a minimum width of 50 feet and terminate with a turn- around having an outside roadway diameter of at least 60 feet, and a street property line of 80 feet. 13. Where possible, lot lines shall be perpendicular to the street line, and to the tangent at the lot corner on curved streets. 14. No street names shall be used which will duplicate or may be confused with the names of existing streets. Street names shall be subject to the approval of the County Plan- ning Agency. 15. Alleys shall have a minimum roadway width of 25 feet. B. Block and Lot Design and Improvements 1. A block is a parcel of land bounded on at least one side by a street and on the other sides by natural or man- made barriers or unplatted land. The lengths, widths, and shapes of blocks shall be de- termined by: a. Building site needs. b. County zoning ordinance lot size and dimensional requirements. In towns which have not ratified the county zoning ordinance the minimum lot size requirements of the R-1 District shall apply. c. Needs for convenient access, circulation, control and safety of street traffic. d. Limitations and opportunities of topography. 2. Block lengths shall normally not exceed fifteen hun- dred (1500) feet, or be less than six hundred (600) feet in length, except permanent deadend streets. 3. To provide adequate access and circulation to play- grounds, schools, shopping centers or other community facil- ities, the County Planning Agency may require that walk- ways be provided, either along streets or through the center of blocks on easements reserved for such purpose. 4. Double frontage lots shall be avoided except where essential to provide separation of residential development from traffic arteries or to overcome particular topographic and site disadvantages. 5. The County Planning Agency may require that nat- ural features including trees be preserved and that appro- priate landscaping be provided. 6. Sewer and water facilities, street paving and sur- face water drainage, when required by the County Planning Agency shall be provided for each lot in accordance with specifications approved by the County Zoning Administrator, SECTION VI: CLUSTER AND PLANNED UNIT DEVELOPMENTS Proposed cluster and planned unit developments shall include a minimum of five acres of land, shall be located in the R-1, R-2, or SR-1 Zoning Districts and shall be developed as a unit for residential uses only. The permitted number of lots in such developments shall be determined by dividing the total area of the development, excluding streets, by the minimum permitted lot size of the zoning district. The min- imum distance between principal structures shall be 20 feet. Land not used for lots and streets shall be dedicated in per- petuity to remain in open space. This may be accomplished