Street Classification
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---|---|---|
Design Standard
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Minor
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Collector and Secondary
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Minimum width of right-of-way
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55 feet
|
65 feet
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Minimum width of pavement
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28 feet
|
36 feet
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Minimum radius of horizontal curves
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150 feet, except for street intersection corners
|
400 feet
|
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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200 feet, but not less than 60 feet for each 1% algebraic
difference of grade
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Minimum length of tangent between reverse curves
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100 feet, except where excessive grades may be reduced
to reasonable grades by shortening tangent
|
200 feet
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Maximum grade
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10%
|
8%
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Minimum grade
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1%
|
1%
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Minimum sight distance (vertical)
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150 feet
|
250 feet
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