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1929 within a block shall have the comers cut off in accordance with standard engineering practice to <br /> 1930 permit safe vehicular movement. <br /> 1931 (4) Intersections shall be designed with a flat stopping area of at least 30 feet in a residential area <br /> 1932 and 60 feet in a commercial or industrial area.The stopping area shall be designed to provide a <br /> 1933 maximum grade of two percent. <br /> 1934 (5) Where any street intersection will involve earth banks or existing vegetation inside any lot comer <br /> 1935 that would create a traffic hazard by limiting visibility,the subdivider shall cut such ground and/or <br /> 1936 vegetation (including trees) in connection with the grading of the right-of-way to the extent <br /> 1937 deemed necessary by the city to provide an adequate sight distance. <br /> 1938 (6) The crown of all streets,including intersections,shall be three percent or less. <br /> 1939 (d) Typical section.The typical section indicated in this subsection is as determined for a clay subgrade <br /> 1940 (A-6 soil classification)and may be subject to change.Soil borings may be required to be determined <br /> 1941 by the city. <br /> 1942 (1) Private street,residential <br /> R.O.W.* M.P.W.** <br /> Units (feet) (feet) Section <br /> 3-6 50 24 8-inch class 5 100%crushed <br /> 3-inch 2341 bituminous surface <br /> 8-inch class 5 100%crushed <br /> Over 7 50 28 3-inch 2341 bituminous surface <br /> Cul de sac 50 radii 45 radii 8-inch class 5 100%crushed <br /> 3-inch 2341 bituminous surface <br /> 1943 <br /> 1944 (2) Public street,residential <br /> Units R.O.W.* M.P.W.** <br /> Section <br /> (feet) (feet) <br /> 3-10 50 28 8-inch class 5 100%crushed <br /> 3-inch 2341 bituminous surface <br /> Over 10 50 32 8-inch class 5 100%crushed <br /> 3-inch 2341 bituminous surface <br /> Cul de sac 50 45 radii 8-inch class 5 100%crushed <br /> 3-inch 2341 bituminous surface <br /> 1945 <br /> 1946 Maximum cul-de-sac length=1,000 feet <br /> 1947 Maximum number of units on cul-de-sac=10 <br /> 1948 (3) Public street,commercial or industrial <br /> June 15,2020 page 45 <br />