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Maryland Multiplexes

Index to photos of Maryland roads with more than one assigned route number

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

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Click on route number signs below for the multiplex photo page. Green multiplexes have complete photo coverage.

Turquoise multiplexes have partial photo coverage.

No photo page is available for gray-shaded multiplexes.

Photos have been submitted for lightly shaded multiplexes.

Current Multiplex	Towns & Cities	Counties	Length (mi.) [Rank]	Directions
Interstate/Interstate Duplexes
	N of Baltimore	Baltimore	1.4	Perp.
	Washington, DC	Prince George's, MD Washington, DC Fairfax, VA	33 (26.11 MD, 0.11 DC, ~7 VA) [3]	Same & Perp.
Interstate/US Route Duplexes
	Grantsville, Frostburg, Cumberland, Hancock	Washington Allegany Garrett	67.3 [1]	Same
	Mount Airy, Frederick	Howard Carroll Frederick	29.3 [4]	Same
	Hancock, Millstone	Washington	8.2 [9]	Same
	N of Hancock, Warfordsburg	Washington, MD Bedford, PA	3.5 (1.16 MD, 2.3 PA)	Perp.
	Bowie	Prince George's Anne Arundel	20.0 [6]	Same
US Route/US Route Duplexes
	Baltimore	Baltimore City	4.2	Perp.
	Salisbury	Wicomico	3.14	Perp.
	Frederick	Frederick	0.7	Perp.
	Frederick	Frederick	5.0	Perp.
	E of Annapolis	Prince George's Anne Arundel Queen Anne's	43.0 [2]	Perp.
US Route/MD Route Duplexes
	Bel Air	Harford	1.54	Same
	Conowingo	Cecil	0.98	Same
	E of Conowingo	Cecil	5.7	Opp.
	Bel Air	Harford	0.57	Same
	Williamsport	Washington	0.13 [-3]	Same
	Frostburg	Allegany	1.07	Perp.
	Baltimore	Baltimore City	1.9	Same
	Bonnie Brook	Dorchester	2.66	Same
	Annapolis	Anne Arundel	3.0	2 Same 1 Perp.
	Snow Hill	Worchester	0.18 [-5]	Same
	Wolfe Mill	Allegany	0.27 [-8]	Perp.
	Crespatown	Allegany	2.7	Same
	Winchester	Allegany	0.56	Same
	Waldorf	Prince George's Charles	2.6	Same
	Waldorf	Charles	0.95	Same
MD Route/MD Route Duplexes
	Sunderland Prince Frederick Solomons	Calvert	27.4 [5]	Same
	Severna Park	Anne Arundel	0.52	Same
	Crofton	Anne Arundel Prince George's	0.50	Perp.
	Elkton	Cecil	0.06 [-1]	Perp.
	Lipins Corner	Anne Arundel	0.49 [-10]	Perp.
	Rhodesdale	Dorchester	2.0	Perp.
	Preston	Caroline Dorchester	4.6	Perp.
	Andersontown	Caroline	0.89	Same
	Jarrettsville	Harford	1.28	Same
	Williamsport	Washington	1.21	Same
	W of Green Valley	Frederick	0.16 [-4]	Perp.
	Thurmont	Frederick	0.99	Perp.
	Westminster	Carroll	2.4	Perp.
	Baltimore	Baltimore City	0.2 [-6]	Same
	Frederick	Frederick	0.24 [-7]	Perp.
	Lipins Corner	Anne Arundel	1.17	Perp.
	Woodsboro	Frederick	0.55	Same
	Takoma Park	Montgomery	0.07 [-2]	Perp.
	Craigtown	Cecil	2.2	Same
	Woodlawn	Cecil	5.7	Same
	Mason Springs	Charles	0.40 [–9]	Perp.
	Calvert	Cecil	4.65	Perp.
	Rising Sun	Cecil	4.56	Same
	S of Chesterville	Kent	0.67	Perp.
	Galena	Kent	0.72	Same
	Ridgely	Caroline	0.88	Perp.
	Federalsburg	Caroline	2.19	Perp.
	Denton	Caroline	5.87	Perp.
Interstate/US Route/US Route Triplexes
	Grantsville, Keysers Ridge	Garrett	8.4 [8]	2 Same 1 Perp.
	Cumberland	Allegany	6.7 [10]	2 Same 1 Perp.
	Hancock	Washington	0.53	2 Same 1 Perp.
	Bowie Annapolis	Anne Arundel	11.9 [7]	2 Same 1 Perp.
MD Route/MD Route/MD Route Triplexes
	Andersontown	Caroline	2.3	2 Same 1 Perp.
Interstate/US Route/US Route/MD Route Quadruplexes
	Annapolis	Anne Arundel	1.4	2 Same 2 Perp.

Old Multiplex	Towns & Cities	Counties	Decmd. Date	Directions
Decommissioned Multiplexes
	Woodsboro	Frederick	1996?	Same

 

 

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

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

See also: Text Index of Maryland Multiplexes

Photo Submittors: Dan Moraseski, Brian Polidoro, Timothy Reichard

Photo coverage: 85% complete on 3/15/05 (48 complete, 8 partially complete, 5 no photos)