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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)

Updates

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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
83 695
N of Baltimore
Baltimore
1.4
Perp.
95 495
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
68 40
Grantsville, Frostburg, Cumberland, Hancock
Washington
Allegany
Garrett
67.3 [1]
Same
70 40
Mount Airy, Frederick
Howard
Carroll
Frederick
29.3 [4]
Same
70 40
Hancock, Millstone
Washington
8.2 [9]
Same
70 522
N of Hancock, Warfordsburg
Washington, MD
Bedford, PA
3.5 (1.16 MD, 2.3 PA)
Perp.
595 50
Bowie
Prince George's
Anne Arundel
20.0 [6]
Same
US Route/US Route Duplexes
TRUCK
1
40
Baltimore
Baltimore City
4.2
Perp.
13 50
Salisbury
Wicomico
3.14
Perp.
15 40
Frederick
Frederick
0.7
Perp.
15 340
Frederick
Frederick
5.0
Perp.
50 301
E of Annapolis
Prince George's
Anne Arundel
Queen Anne's
43.0 [2]
Perp.
US Route/MD Route Duplexes
1 24
Bel Air
Harford
1.54
Same
1 222
Conowingo
Cecil
0.98
Same
 
TRUCK
1
222
E of Conowingo
Cecil
5.7
Opp.
BUSINESS
 
1
924
Bel Air
Harford
0.57
Same
11 63
Williamsport
Washington
0.13 [-3]
Same
 
40
36
Frostburg
Allegany
1.07
Perp.
TRUCK
 
40
Baltimore
Baltimore City
1.9
Same
50 16
Bonnie Brook
Dorchester
2.66
Same
50 301 2
Annapolis
Anne Arundel
3.0
2 Same
1 Perp.
BUSINESS
 
113
12
Snow Hill
Worchester
0.18 [-5]
Same
220 144 Wolfe Mill Allegany 0.27 [-8] Perp.
TRUCK
 
220
Crespatown
Allegany
2.7
Same
TRUCK
 
220
Winchester
Allegany
0.56
Same
301 5
Waldorf
Prince George's
Charles
2.6
Same
Waldorf
Charles
0.95
Same
MD Route/MD Route Duplexes
2 4
Sunderland
Prince Frederick
Solomons
Calvert
27.4 [5]
Same
2 648
Severna Park
Anne Arundel
0.52
Same
3 450
Crofton
Anne Arundel
Prince George's
0.50
Perp.
7 213
Elkton
Cecil
0.06 [-1]
Perp.
10 100
Lipins Corner
Anne Arundel
0.49 [-10]
Perp.
14 331
Rhodesdale
Dorchester
2.0
Perp.
16 331
Preston
Caroline
Dorchester
4.6
Perp.
16 404
Andersontown
Caroline
0.89
Same
23 165
Jarrettsville
Harford
1.28
Same
63 68
Williamsport
Washington
1.21
Same
75 80
W of Green Valley
Frederick
0.16 [-4]
Perp.
77 550
Thurmont
Frederick
0.99
Perp.
97 140
Westminster
Carroll
2.4
Perp.
129 140
Baltimore
Baltimore City
0.2 [-6]
Same
144 355
Frederick
Frederick
0.24 [-7]
Perp.
177 648
Lipins Corner
Anne Arundel
1.17
Perp.
194 550
Woodsboro
Frederick
0.55
Same
195 410
Takoma Park
Montgomery
0.07 [-2]
Perp.
TRUCK
 
275
Craigtown
Cecil
2.2
Same
TRUCK
 
222
276
Woodlawn
Cecil
5.7
Same
224 225
Mason Springs
Charles
0.40 [–9]
Perp.
TRUCK
272
274
Calvert
Cecil
4.65
Perp.
TRUCK
273
274
Rising Sun
Cecil
4.56
Same
290 291
S of Chesterville
Kent
0.67
Perp.
290 313
Galena
Kent
0.72
Same
312 480
Ridgely
Caroline
0.88
Perp.
313 318
Federalsburg
Caroline
2.19
Perp.
313 404
Denton
Caroline
5.87
Perp.
Interstate/US Route/US Route Triplexes
68 40 219
Grantsville, Keysers Ridge
Garrett
8.4 [8]
2 Same
1 Perp.
68 40 220
Cumberland
Allegany
6.7 [10]
2 Same
1 Perp.
70 40 522
Hancock
Washington
0.53
2 Same
1 Perp.
595 50 301
Bowie
Annapolis
Anne Arundel
11.9 [7]
2 Same
1 Perp.
MD Route/MD Route/MD Route Triplexes
16 313 404
Andersontown
Caroline
2.3
2 Same
1 Perp.
Interstate/US Route/US Route/MD Route Quadruplexes
595 50 301 2
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)

 

 


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