Driveway
|
Minimum Width
(feet)
| |
---|---|---|
Single user up to 500 feet
|
10
| |
Single user greater than 500 feet
|
10 + 2 pervious
| |
Common driveway (2 users)
|
14 + 4 pervious
| |
Common driveway (3 users)
|
16 + 4 pervious
| |
Common driveway in DRD
|
20
|
Road Classifications
| ||
---|---|---|
Type of Improvements
|
A Road Town Road
|
B Road Private Road
|
Minimum width of right-of-way (feet)
|
50
|
50
|
Minimum width of pavement, excluding curbs (feet)
|
24
|
22
|
Minimum radius at intersections (feet):
| ||
Right-of-way
|
25
|
25
|
Pavement
|
25
|
25
|
Minimum radius of horizontal curves at road center line (feet)
|
150
|
150
|
Minimum length of vertical curves (feet)
|
1001
|
1001
|
Minimum length of tangents between reverse curves (feet)
|
100
|
100
|
Maximum grade (percent)
|
10
|
12
|
Maximum grade within 60 feet of intersection (percent)
|
3
|
3
|
Minimum grade (percent)
|
1 1/2
|
1 1/2
|
Minimum sight distance along road (feet)
|
200
|
200
|
Maximum cul-de-sac grade (2) (percent)2
|
5
|
5
|
Minimum cul-de-sac diameter (feet)
|
90
|
90
|
Maximum length of permanent dead-end (feet)
|
6 times the minimum lot width for the zoning district in which it is
located, exclusive of the turnaround
|
NOTES:
1But not less than 28 and 35
feet for each 1% algebraic difference in grade for crest and sag curve, respectively.
2Unless the cul-de-sac is temporary
and the road will be extended in the future, the future road grade shall be
considered.
|