[Ord. 2136, passed 2-1-1993]
Table I
Street and Alley Design Standards
Minimum Right-of-Way
50 feet
Minimum Cartway
27 feet 6 inches
Minimum Grade
1%
Maximum Grade
12%
Minimum Angle for Intersection
90°
Minimum Curb Radius:
With Municipal Street
20 feet
With State or County Road
25 feet
Maximum Grade (25 feet before centerline intersection)
3%
Site Triangles (measured along centerline of intersecting streets)
With Municipal Street
75 feet
With State or County Road
150 feet
Horizontal Alignment (minimum radius of centerline)
125 feet
Vertical curve
100 feet
Sidewalks (including curb):
Local Street
4 feet 6 inches
Collector Street
5 feet 6 inches
Arterial Street
5 feet 6 inches
Alleys:
Minimum Right-of-Way
16 feet
Minimum Cartway
16 feet
Cul-De-Sac:
Minimum Right-of-Way
50 feet
Minimum Cartway Width
25 feet
Minimum Right-of-Way Radius
50 feet
Minimum Radius to Edge of Pavement
40 feet
Maximum Street Length
600 feet
Other Considerations:
1.
The Above Standards are Minimum Standards. From time to time, the Commission may increase minimal standards when necessary to protect the public interest.
2.
The Commission mayconsider a waiver or modification of any of the above standards under procedures described in § 1242.06.
3.
Other design standards and performance standards are set forth in Chapters 1020, 1028 and 1250 of the Penn Hills Codified Ordinances.