APPENDIX I
STREET DESIGN STANDARDS
 
TYPE OF STREET *
Arterial/ Collector
Local Streets
Service Streets
Right of Way Widths
55'
50'
40'
Cul de Sac Right of Way Radius
NA **
50'
45' ***
Angle of Street Intersection
90o
75o - 90o
60o - 90o
Cartway Paving Width (curb to curb)
32'
25-8"
22'
Cul de Sac Paving Radius
NA
40'
30'
Minimum Street Grade
1.5%
1.0%
1.0%
Maximum Street Grade
12.0%
12.0%
14.0%
Maximum Levelling Grade (for 50' before Center Line of Intersection)
3.0%
3.0%
4.0%
Curb Return Radius
30'
25'
20'
Clear Sight Triangle (Main to Side Street)
500'/30'
250'/25'
200'/25'
Horizontal Curves
Minimum Center Line Radius
300'
125'
100'
Vertical Curves
Change in Grade per 100'
4'
5'
8'
Sidewalk Width (where required)
5'
4'
4'
*    See definitions of types of streets in Section 105 of this Ordinance.
**    NA = Not Applicable
***    Comparable hammer-head design also permitted
 
 
 
 
CODIFIED ORDINANCES OF WHITE OAK