Type of Street
|
Right-of-Way Width
(feet)
|
Cartway Width
(feet)
|
---|---|---|
Arterial
|
80 to 120
|
46
|
Collector
|
60
|
34
|
Local access
|
50
|
30
|
Alternates
|
Type
|
Local Access Streets
(inches)
|
Collector and Arterial Streets
(inches)
|
---|---|---|---|
Rigid pavement
|
Plain cement concrete subbase
|
6
|
6
|
Flexible pavements
| |||
Surface
|
ID-2
|
1 1/2
|
1 1/2
|
Base
|
Bituminous
|
4
|
6
|
Subbase
|
6 (if required)
|
6 (if required)
| |
Surface
|
ID-2
|
3
|
3
|
Base
|
Crushed aggregate (regular or dense grade)
|
6
|
10
|
Subbase
|
6 (if required)
|
9 (if required)
| |
Surface
|
ID-2 Modified
|
3
|
3
|
Base
|
stone aggregate
|
8
|
10
|
Subbase
|
6 (if required)
|
9 (if required)
|