Minor and Secondary Streets
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Standard
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Required Dimensions
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Minimum width of right-of-way
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50 feet
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Minimum width of pavement
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20 feet
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Minimum radius of horizontal curves
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150 feet, except for street intersection corners
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Minimum length of vertical curves as measured
from center line of right-of-way
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100 feet, but not less than 20 feet for each
1% algebraic difference of grade
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Minimum length of tangents between reverse curves
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100 feet, except where excessive grades may
be reduced to reasonable grades by shortening tangent
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Maximum grade
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10%
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Minimum grade
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1%
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Minimum sight distance
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150 feet
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(Note: Standards are not shown for arterial
streets, as they would in all probability be built by the state or
county.)
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