Providing for the Control of Land Subdivision and the Approval od Plat and Replat of Land

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C. 9. The maximum grade on major streets shall not ex- ceed six (6) per cent. The maximum grade on other streets and alleys shall not exceed eight (8) per cent, and the minimum grade of any street gutter shall not be less than one -half (z) of one (1) per cent. Proposed streets shall be adjusted to the contour of the land to produce usable lots and streets of reasonable gradient. 10. Half- streets and half - alleys shall be prohibited. Whenever a half- street is adjacent to a tract to be subdivided, the other half of the street shall be platted within such tracts. 11. Cul -de -sac and dead end streets,designed to be so permanently,shall generally not be longer than six hundred (600) feet. All dead end streets shall terminate in a circular right -of -way within a minimum radius of fifty (50) feet with an effective turning radius of forty (40) feet. 12. The minimum right -of -way width of all streets shall be as scheduled under Section V, Sub - Section D -2 (p.16 ). 13. All street intersections shall, where possible, be made at right angles but in no case shall the acute angle be less than eighty (80) degrees. 14. No street names shall be used which will dupli- cate or be confused with the names of existing streets within the corporate limits of South Bend and a three (3) mile radius therefrom. All street names proposed shall be subject to Planning Com- mission approval. Alleys 1. Alleys shall be provided in commercial and indus- trial districts except that the Planning Commission may waive this requirement,if other definite and assured provision is made for service access such as off - street loading, unloading, and parking con- sistent with and adequate for the uses proposed. 2. Alleys shall be prohibited in residential areas except where topographical or other conditions may necessitate their use. 3. The width of an alley shall not be less than twenty (20) feet. 5