TABLE 1
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---|---|---|---|
DESIGN STANDARDS FOR STREETS
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Minor
|
Collector
| ||
Minimum width right-of-way
|
50 feet
|
60 feet
| |
Minimum width of pavement
|
28 feet
|
36 feet
| |
Minimum radius of horizontal curves
|
100 feet(1)
|
250 feet
| |
Minimum length of tangents between reverse curves
|
100 feet(4)
|
200 feet
| |
Maximum grade
|
8%(5)
|
8%
| |
Minimum grade
|
1%
|
1%
| |
Minimum sight distance
|
100 feet
|
250 feet
|
Notes:
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(1)Except for street
intersection corners.
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(2)But not less than
20 feet for each 1% algebraic difference of grade
| |
(3)But not less than
30 feet for each 1% algebraic difference of grade
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(4)Except where excessive
grades may be reduced to reasonable grades by shortening tangent
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(5)Except that grades
of up to 10% may be approved on short runs
|