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Pennsylvania Multiplexes
Triplexes, Quadruplexes, and Quintuplexes

(or see the Text Index, which groups multiplexes by direction and number)

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Multiplex	Towns & Cities	Counties	Length (mi.)	Relative Directions
Interstate/US Route/US Route Triplexes
	Williamsport	Lycoming	3	3 Dir.
	Pittsburgh	Allegheny	6	2 Same 1 Perp.
	Pittsburgh	Allegheny	8	Same
US Route/US Route/US Route Triplexes
	Meadville	Crawford	2	2 Same 1 Perp.
	Lewistown	Mifflin	1	2 Same 1 Perp.
US Route/US Route/PA Route Triplexes
	Saegertown	Crawford	1	2 Same 1 Perp.
	Conneaut Lake	Crawford	1	2 Same 1 Perp.
	Mercer	Mercer	<1	2 Same 1 Perp.
	Franklin	Venango	<1	2 Same 1 Perp.
	Indiana	Indiana	1	3 Dir.
US Route/PA Route/PA Route Triplexes
	Carlisle	Cumberland	<1	3 Dir.
	Shippensburg	Cumberland	<1	2 Same 1 Perp.
	Mercer	Mercer	<1	2 Same 1 Perp.
	Greensburg	Westmoreland	<1	Same
	Greensburg	Westmoreland	<1	2 Same 1 Perp.
	Lancaster	Lancaster	<1	2 Same 1 Opp.
	Brookville	Jefferson	1	3 Dir.
	Kittanning	Armstrong	1	2 Same 1 Opp.
	Indiana	Indiana	2	Same
PA Route/PA Route/PA Route Triplexes
	Mercersburg	Franklin	<1	2 Same 1 Perp.
	Greenville	Mercer	<1	3 Dir.
	New Castle	Lawrence	1	2 Same 1 Perp.
	Montrose	Susquehanna	1	3 Dir.
	Grove City	Mercer	<1	2 Same 1 Perp.
	Plumville	Indiana	1	2 Same 1 Perp.
	Monongahela	Washington	1	2 Same 1 Perp.
	Elizabethtown	Lancaster	<1	2 Same 1 Perp.
	Newtown	Bucks	<1	2 Same 1 Perp.
	Schaefferstown	Lebanon	<1	2 Same 1 Opp.
Interstate/US Route/US Route/US Route Quadruplexes
	Pittsburgh	Allegheny	1	2 Same 2 Perp.
US Route/US Route/PA Route/PA Route Quadruplexes
	Conneaut Lake	Crawford	<1	3 Same 1 Perp.
	Mercer	Mercer	<1	2 Same 1 Perp. 1 Opp.
Interstate/US Route/US Route/US Route/US Route Quintuplexes
	Pittsburgh	Allegheny	<1	2 Same 2 Perp. 1 Same & Opp.

Directions: Same, Perpendicular (Perp.), and Opposite (Opp.)

Rank: [2] means second longest multiplex, [-2] means second shortest multiplex

 

Pennsylvania Multiplexes:	Interstate Duplexes	US/US Duplexes	US/PA Duplexes
	PA 1-99/PA Duplexes	PA 100-999/PA Duplexes	Tri-, Quadru-, & Quintuplexes
	All PA Multiplexes (Text Listing)

 

11/19/2