Right-of-Way Width:
Minimum 200 feet
Turnpike Width:
Delaware River to Ohio Line (plus hill-climbing
lanes for trucks at various locations): 78 feet
Northeastern Extension
72 feet
Northeastern Extension Junction to Philadelphia
Int. (6 lanes)
106 feet
Southwestern Expansion
132 feet
Width of Double Lane
24 feet
Width of Outside Shoulders:
Standard
10 feet
Northeastern Extension Junction to Philadelphia
Interchange
12 feet
Curves:
Maximum Curvature
6 degrees
(Approximately 955 feet minimum radius) on Allegheny
Mountain climbing lanes only.
Western Extension (Irwin-Ohio Line)
4 degrees
Remainder of Turnpike
3 degrees
Grades:
Maximum Steepness
Mainline
3 percent
Ramps
6 percent
Extensions
5 percent
Tunnel Lengths:
Blue Mountain
4,339 feet
Kittatinny Mountain
4,727 feet
Tuscarora Mountain
5,326 feet
Allegheny
6,070 feet
Lehigh (on Northeastern Extension)
4,461 feet
Major Bridges, Lengths:
Delaware River
6,571 feet
Schuylkill River
1,228 feet
Susquehanna River
4,526 feet
Allegheny River
2,186 feet
Beaver River
1,546 feet
Mahoning River (Twin Bridges - Turnpike 60)
1,700 feet
Lehigh River (Northeastern Extension - Turnpike 476; south
crossing)
1,494 feet
Clarks Summit (Northeastern Extension - Turnpike 476)
1,627 feet
Joe Montana Bridges (Twin Bridges - Turnpike 43)
2,507 feet
Maple Creek (Turnpike 43)
1,010
Bogdon Road (Turnpike 43)
1,412
Pigeon Creek/Park Avenue (Turnpike 43)
1,780
Hazelkirk Road (Turnpike 43)
1,353
Interchanges:
Most heavily used:
Mid-County and Norristown (2003) 90,890 *AADT
Least heavily used:
Willow Hill (2003) 1,142 *AADT
*Average
Annual Daily Traffic
SAFETY
The Pennsylvania
Turnpike Commission believes proper seat
belt use and strict
enforcement of speed limits
or speeds appropriate for conditions are major
factors in keeping the highway safe. During
2001, members of the Pennsylvania State Police,
Troop T issued 90,400 traffic citations.
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