09-14-2020 Council Packet - Laserfiche WebLink

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July 20, 2020 page 44 Parkway 100 feet Culs-de-sac 50 feet radius 1896 b. Rights-of-way are needed for future roadways in the opinion of the city. 1897 c. Right-of-way widths or additional widths in existing rights-of-way in excess of the standards 1898 designated in this chapter when, due to topography, additional width is necessary to provide 1899 adequate earth slopes. Such slopes shall not be in excess of 3:1. 1900 (b) Railroads and limited-access roadways. Railroad rights-of-way and limited-access roadways where 1901 so located as to affect the subdivision of adjoining lands shall be treated as follows: 1902 (1) In residential districts, a buffer strip at least 25 feet in depth in addition to the normal depth of 1903 the lot required in the district shall be provided adjacent to the railroad right-of-way or limited-1904 access roadway. 1905 (2) In districts zoned for business, commercial or industrial uses, the nearest street extending parallel 1906 or approximately parallel to the railroad shall be at a sufficient distance to ensure suitable depth 1907 for commercial or industrial sites. 1908 (3) Streets parallel to the railroad when intersecting a street which crosses the railroad at grade shall 1909 be at a distance of at least 150 feet from the railroad right-of-way. Such distance shall be 1910 determined with due consideration of the minimum distance required for future separation of 1911 grades by means of appropriate approach gradients. 1912 (4) Streets Roadways crossing the railroads shall be avoided. 1913 (c) Intersections. 1914 (1) StreetsRoadways shall be laid out so as to intersect as nearly as possible at right angles. A 1915 proposed intersection of two new streets at an angle or less than 75 degrees shall not be acceptable. 1916 An oblique street should be curved approaching an intersection and should be approximately at 1917 right angles for at least 100 feet from the intersection. Not more than two streets shall intersect at 1918 any one point unless specifically approved by the city. 1919 (2) Proposed new intersections along one side of an existing street shall coincide with any existing 1920 intersections on the opposite side of such street. Intersection jogs with centerline offsets of less 1921 than 150 feet shall not be permitted, except where the intersected street has separated dual drives 1922 without median breaks at either intersection. Where streets intersect collectors or arterials, major 1923 streets, their alignment shall be continuous. Intersections of arterial roadways shall be at least 800 1924 feet apart. 1925 (3) Minimum curb radius at the intersection of two local streets shall be at least 15 feet, and 1926 minimum curb radius at an intersection involving a collector street or local streets in a commercial 1927 or industrial area shall be at least 25 feet. Alley intersections and abrupt changes in alignment 1928 within a block shall have the corners cut off in accordance with standard engineering practice to 1929 permit safe vehicular movement. 1930 (4) Intersections shall be designed with a flat stopping area of at least 30 feet in a residential area 1931 and 60 feet in a commercial or industrial area. The stopping area shall be designed to provide a 1932 maximum grade of two percent. 1933 (5) Where any street intersection will involve earth banks or existing vegetation inside any lot corner 1934 that would create a traffic hazard by limiting visibility, the subdivider shall cut such ground and/or 1935