Residential Subdivision Street Design
Standards
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---|---|---|---|---|---|---|
Design Standards
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Collector
Arterial
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Collector
Rural
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Collector
Residential
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Local
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Marginal
Access
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Cul-de-Sac
Diameter
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Minimum right-of-way width (feet)
|
120
|
80
|
80
|
60
|
60
|
60/160
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Minimum pavement width, excluding gutters (feet)
|
(2) at 26
|
24
|
30
|
24
|
24
|
24
|
Maximum grade
|
6%
|
6%
|
6%
|
10%
|
5%
|
8%
|
Minimum grade
|
0.50%
|
0.50%
|
0.50%
|
0.50%
|
0.50%
|
0.50%
|
Minimum radius of curves at the center line
(feet)
|
800
|
600
|
300
|
150
|
500
|
150
|
Minimum tangent between reverse curves (feet)
|
300
|
250
|
200
|
100
|
200
|
N/A
|
Maximum grade within 100 feet of the center
line of an intersection
|
1%
|
2%
|
2%
|
3%
|
3%
|
3%
|
Minimum stopping sight distance (feet)
|
400
|
200
|
200
|
150
|
200
|
100
|
Minimum distance between center line offsets
as street jogs
|
500
|
250
|
250
|
200
|
200
|
200
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Maximum length of cul-de-sacs (feet)
|
N/A
|
N/A
|
N/A
|
500
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N/A
|
130
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Minimum outside radius of cul-de-sac pavement
(feet)
|
65
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Angle at intersection of street lines
|
90°
|
90°
|
90°
|
80° to 100°
|
80° to 100°
|
80° to 100°
|
Maximum curb intersection radius (feet)
|
30
|
30
|
30
|
25
|
25
|
25
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