List of state highways in Maryland
List of Maryland state highways | |
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Standard route signs in Maryland | |
System information | |
Maintained by mostly MDSHA; portions of some routes maintained by other agencies and jurisdictions | |
Highway names | |
State | Maryland Route X (MD X) |
Special Routes: |
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System links | |
Maryland has an extensive system of state highways, exclusive of the national Interstate and U.S. highway systems, that serves all 23 counties and the independent city of Baltimore, almost every incorporated city, town, and village, and most unincorporated places in the state. These highways are each designated Maryland Route X, where X is a number between 2 and 999. The highways are typically abbreviated MD X, although MD Route X and Route X are used less frequently. Because Maryland does not have a secondary route system or signed county route systems, all state highways are part of the main numerical system. That means the same set of numbers is used for both major highways and minor service roads, and almost every number has been used at one time or another.
The Maryland State Highway Administration constructs and maintains the vast majority of state highways in the 23 counties of Maryland. The Baltimore City Department of Transportation maintains all state highways within the city of Baltimore. Several towns and cities also maintain all or parts of the state highways within their boundaries. There are a few instances where a county department of transportation maintains sections of a state highway. Two unique situations are that MD 200 is maintained by the Maryland Transportation Authority, which controls all of the publicly owned, tolled highways and bridges in the state, and part of MD 295, also known as the Baltimore–Washington Parkway, is maintained by the National Park Service as a National Parkway.
Maryland applies letter suffixes to route numbers as a way of organizing groups of related highways, such as a group of old alignments of a major highway, a group of service roads related to the construction of a major highway, or a combination of both. However, these letter suffixes are only used for inventory purposes and are never signed, with the exception of MD 835A. Since most routes with suffixes are very short highways of low importance, these highways are rarely signed with route markers. However, there are several numbered highways with several disjoint segments whose segments are denoted internally with letter suffixes but the segments are signed with the same numerical route marker; examples of these highways include MD 7, MD 18, MD 144, MD 648, MD 675, and MD 765.
There is no duplication allowed between U.S. and Maryland state highways unless the two highways are related. The only signed examples of duplicate numbers are MD 222, which is the old alignment of US 222 before the latter was rolled back from Perryville to Conowingo, and MD 219, which is a placeholder for a short section of a potential future bypass of Oakland. Duplication of number is allowed between Interstate and Maryland state highways. MD 795 is an unsigned short continuation of I-795. Also, MD 68 intersects I-70 in close proximity to I-68 that signs are posted on I-70 advising drivers of the difference between the roads.[1]
This list of Maryland state highways contains all existing state highways—that is, all highways with Maryland route numbers—and all documented former state highways.
Number | Length (mi)[2] | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
---|---|---|---|---|---|---|---|---|
79.24 | 127.52 | Solomons | US 1 in Baltimore | 1927 | current | |||
9.56 | 15.39 | US 50 / US 301 in Bowie | I-97 in Millersville | 1927 | current | |||
64.85 | 104.37 | MD 5 in Leonardtown | Pennsylvania Avenue in Washington, D.C. | 1927 | current | |||
74.34 | 119.64 | Point Lookout | Branch Avenue in Washington, D.C. | 1927 | current | |||
47.38 | 76.25 | Riverside | MD 235 in Oraville | 1927 | current | |||
22.83 | 36.74 | US 40 in Rosedale | US 40 / MD 159 in Aberdeen | 1938 | current | Longest section | ||
8.37 | 13.47 | Romancoke | MD 18 in Stevensville | 1960 | current | |||
— | — | — | — | 1978 | 1978 | proposed renumbering of US 140 west of Reisterstown (now part of MD 140) | ||
7.17 | 11.54 | MD 2 in Pasadena | I-695 in Glen Burnie | 1972 | current | |||
30.57 | 49.20 | VA 679 near Stockton | Main Street in Salisbury | 1927 | current | |||
11.51 | 18.52 | MD 16 in Secretary | MD 313 in Eldorado | 1927 | current | |||
50.06 | 80.56 | Taylors Island | DE 16 near Andersontown | 1927 | current | |||
29.49 | 47.46 | VA 287 in Brunswick | Wolfsville | 1940 | current | |||
— | — | Claiborne | US 213 in Easton | 1927 | 1940 | |||
20.47 | 32.94 | Love Point | MD 213 in Centreville | 1927 | current | Contiguous sections | ||
8.60 | 13.84 | MD 213 in Church Hill | MD 313 in Ingleside | 1927 | current | |||
13.77 | 22.16 | Rock Hall | MD 291 in Chestertown | 1927 | current | |||
2.72 | 4.38 | MD 151 in Dundalk | MD 150 in Dundalk | 1927 | 1998 | Longest section | ||
2.42 | 3.89 | MD 445 near Tolchester Beach | MD 20 near Fairlee | 1927 | current | |||
13.04 | 20.99 | US 1 Business / MD 924 in Bel Air | Aberdeen Proving Ground | 1927 | current | |||
20.46 | 32.93 | US 1 in Hickory | PA 24 near Norrisville | 1927 | current | |||
25.17 | 40.51 | Aberdeen Proving Ground | PA QR 2055 in Fawn Grove, PA | 1927 | current | |||
26.89 | 43.28 | MD 2 in Baltimore | Beckleysville Road near Alesia | 1927 | current | |||
44.10 | 70.97 | US 15 in Frederick | MD 140 in Baltimore | 1927 | current | |||
39.17 | 63.04 | MD 355 in Germantown | MD 30 in Manchester | 1934 | current | |||
— | — | Georgia Avenue in Washington, D.C. | US 40 in Ellicott City | 1927 | 1934 | |||
37.38 | 60.16 | US 15 in Point of Rocks | MD 182 in Norwood | 1927 | current | |||
— | — | US 240 in Germantown | US 140 in Westminster | 1927 | 1934 | |||
19.16 | 30.84 | MD 140 in Reisterstown | PA 94 near Manchester | 1927 | current | |||
16.95 | 27.28 | MD 26 in Libertytown | MD 140 in Westminster | 1927 | current | |||
51.79 | 83.35 | I-97 in Millersville | Westminster | 1927 | current | |||
23.17 | 37.29 | Tilghman Island | Washington Street in Easton | 1940 | current | |||
— | — | Brunswick | Wolfsville | 1927 | 1940 | |||
9.95 | 16.01 | WV 480 near Shepherdstown, WV | US 40 Alternate in Boonsboro | 1927 | current | |||
2.37 | 3.81 | MD 36 in Corriganville | PA 96 in Ellerslie | 1927 | current | |||
29.43 | 47.36 | WV 46 in Westernport | US 40 Alternate in La Vale | 1927 | current | |||
— | — | West Virginia state line near Redhouse | US 40 at Keyser's Ridge | 1927 | 1935 | |||
— | — | Garrison near the Gwynns Falls | 1950 | 1998 | ||||
5.67 | 9.12 | WV 42 in Kitzmiller | MD 135 near Kitzmiller | 1927 | current | |||
6.22 | 10.01 | WV 7 in Hutton | US 219 in Oakland | 1927 | current | |||
6.75 | 10.86 | MD 147 in Baltimore | Waltham Woods Road in Carney | 1962 | current | |||
— | — | US 219 in Oakland | MD 38 in Deer Park | 1927 | 1956 | |||
15.06 | 24.24 | US 219 near McHenry | PA QR 2013 in Asher Glade | 1927 | current | |||
8.65 | 13.92 | I-695 in Parkville | MD 150 in Middle River | 1963 | current | |||
— | — | Fort Frederick State Park | MD 56 near Big Pool | 1936 | 1969 | |||
30.02 | 48.31 | US 1 in Baltimore | PA QR 3001 in Maryland Line | 1957 | current | |||
— | — | dead end | US 40 Alternate northwest of Frostburg | 1927 | 1956 | |||
— | — | MD 295 in Linthicum | BWI Airport | 1950 | 1990 | |||
1.70 | 2.74 | MD 36 in Barrelville | PA 160 near Barrelville | 1927 | current | |||
— | — | US 220 near Dickens | Pennsylvania state line | 1927 | 1950 | |||
2.69 | 4.33 | MD 658 in La Vale | Greene Street in Cumberland | 1927 | current | |||
25.53 | 41.09 | I-68 / US 40 / US 220 in Cumberland | WV 9 near Paw Paw, WV | 1927 | current | |||
— | — | MD 51 in Cumberland | Christie Road near Evitts Creek | 1927 | 1956 | |||
3.33 | 5.36 | US 220 in Cresaptown | US 40 Alternate in La Vale | 1927 | current | |||
19.79 | 31.85 | MD 313 in Mardela Springs | DE 54 / DE 26 / MD 353 near Gumboro, DE | 1969 | current | Length only includes the section of the Maryland and Delaware portions of Route 54 between the Maryland endpoints | ||
— | — | MD 17 in Myersville | Easterday Road near Myersville | 1933 | 1956 | |||
2.53 | 4.07 | MD 36 in Vale Summit | US 40 Alternate in Clarysville | 1927 | current | |||
8.08 | 13.00 | I-70 in Big Pool | MD 68 near Pinesburg | 1927 | current | |||
4.02 | 6.47 | US 40 near Clear Spring | MD 494 near Fairview | 1927 | current | |||
3.53 | 5.68 | MD 63 in Cearfoss | Hagerstown | 1928 | current | |||
— | — | US 340 in Jefferson | US 40 Alternate in Middletown | 1929 | 1956 | |||
3.53 | 5.68 | Hagerstown | PA 316 near Leitersburg | 1927 | current | |||
1.94 | 3.12 | WV 28 in Cumberland | MD 51 in Cumberland | 2001 | current | |||
— | — | Antietam Drive near Hagerstown | East of Hagerstown | 1927 | 1956 | |||
3.88 | 6.24 | MD 804 in Chewsville | MD 60 in Leitersburg | 1927 | current | |||
16.99 | 27.34 | MD 65 near Spielman | PA 163 near Cearfoss | 1927 | current | |||
13.33 | 21.45 | US 40 in Hagerstown | PA 997 near Ringgold | 1927 | current | |||
11.75 | 18.91 | MD 34 in Sharpsburg | Hagerstown | 1927 | current | |||
12.84 | 20.66 | US 40 Alternate in Boonsboro | MD 64 near Smithsburg | 1927 | current | |||
12.20 | 19.63 | US 340 in Weverton | US 40 Alternate in Boonsboro | 1927 | current | |||
18.50 | 29.77 | US 40 in Clear Spring | US 40 Alternate in Boonsboro | 1927 | current | |||
— | — | Mount Zion Road near Braddock Heights | US 40 Alternate in Braddock Heights | 1927 | 1956 | |||
2.32 | 3.73 | MD 450 in Annapolis | Bestgate Road in Parole | 1954 | current | |||
— | — | US 340 in Knoxville | Florida Avenue in Brunswick | 1927 | 1950 | |||
— | — | MD 26 in Ceresville | PA 194 near Taneytown | 1927 | 1956 | |||
— | — | US 50 in Queenstown | DE 71 near Warwick | 1956 | 1959 | |||
— | — | US 15 in Lewistown | North of Creagerstown | 1927 | 1956 | |||
— | — | Frederick | Yellow Springs | 1927 | 1969 | |||
— | — | Frederick | Poole Jones Road near Frederick | 1927 | 1956 | |||
28.40 | 45.71 | MD 355 near Hyattstown | MD 31 in New Windsor | 1927 | current | |||
5.69 | 9.16 | MD 77 at Rocky Ridge | US 15 near Emmitsburg | 1927 | current | |||
20.74 | 33.38 | MD 64 in Smithsburg | MD 194 in Keymar | 1927 | current | |||
— | — | Adamstown | US 340 near Frederick | 1927 | 1970 | |||
0.85 | 1.37 | MD 17 / MD 464 in Rosemont | Petersville Road in Rosemont | 1927 | current | |||
14.79 | 23.80 | MD 85 in Buckeystown | MD 27 near Damascus | 1927 | current | |||
— | — | MD 806 in Thurmont | Fort Ritchie | 1927 | 1977 | |||
— | — | MD 191 in Bethesda | MD 410 in Chevy Chase | 1929 | 1997 | |||
— | — | MD 31 in New Windsor | one block south of MD 31 in New Windsor | 1927 | 1956 | |||
5.75 | 9.25 | MD 75 in New Windsor | MD 832 in Tyrone | 1927 | current | |||
10.82 | 17.41 | MD 28 in Tuscarora | Frederick | 1970 | current | |||
— | — | Frederick–Carroll county line near Middleburg | Middleburg | 1927 | 1956 | |||
4.00 | 6.44 | MD 30 in Manchester | PA 516 in Lineboro | 1927 | current | |||
— | — | Carrollton | MD 31 in Mexico | 1927 | 1956 | |||
8.01 | 12.89 | MD 30 Business in Hampstead | MD 25 near Butler | 1927 | current | |||
— | — | MD 88 in Hampstead | Carroll–Baltimore county line near Hampstead | 1927 | 1956 | |||
11.83 | 19.04 | US 50 near Whaleyville | MD 528 in Ocean City | 1972 | current | |||
— | — | Houcksville | MD 30 in Hampstead | 1927 | 1956 | |||
7.86 | 12.65 | MD 32 at Gamber | MD 30 near Upperco | 1927 | current | |||
— | — | MD 64 in Smithsburg | East of Smithsburg | 1934 | 1956 | |||
— | — | MD 26 at Shervettes Corner | Carroll–Baltimore county line near Shervettes Corner | 1927 | 1956 | |||
6.25 | 10.06 | Patuxent River near Damascus | Old Frederick Road near Lisbon | 1927 | current | |||
— | — | West of Comus | MD 109 at Comus | 1930 | 1999 | |||
— | — | Union Chapel Road near Glenwood | MD 144 near Lisbon | 1927 | 1956 | |||
55.27 | 88.95 | US 29 / MD 384 in Silver Spring | PA 97 near Littlestown, PA | 1927 | current | |||
— | — | MD 32 in Glenelg | MD 144 near Ellicott City | 1927 | 1956 | |||
7.57 | 12.18 | MD 32 near West Friendship | US 29 in Ellicott City | 1927 | current | |||
22.05 | 35.49 | US 29 in Ellicott City | MD 177 in Jacobsville | 1970 | current | |||
— | — | MD 99 near Ellicott City | Howard–Baltimore county line near Ellicott City | 1927 | 1956 | |||
— | — | MD 99 near West Friendship | Howard–Carroll county line at Henryton | 1927 | 1956 | |||
— | — | Ellicott City | MD 144 in Ellicott City | 1927 | 1956 | |||
8.29 | 13.34 | St. John's Lane in Ellicott City | Dorsey | 1927 | current | |||
1.14 | 1.83 | MD 108 near Columbia | MD 103 near Ellicott City | 1979 | current | |||
— | — | MD 103 near Ellicott City | Howard–Baltimore county line at Ilchester | 1927 | 1956 | |||
— | — | MD 144 in Ellicott City | MD 100 in Ellicott City | 1927 | 1956 | |||
— | — | Glenelg | US 1 in Savage | 1927 | 1946 | |||
4.79 | 7.71 | MD 109 in Poolesville | MD 28 in Dawsonville | 1927 | current | |||
34.23 | 55.09 | MD 27 in Damascus | MD 175 in Columbia | 1927 | current | |||
11.87 | 19.10 | MD 107 in Poolesville | MD 355 in Hyattstown | 1927 | current | |||
— | — | Old Annapolis Road near Mount Airy | Shirley Bohn Road near Mount Airy | 1948 | 1949 | |||
2.81 | 4.52 | MD 190 near Seneca | MD 28 in Darnestown | 1927 | current | |||
1.16 | 1.87 | MD 117 in Gaithersburg | MD 355 in Gaithersburg | 2022 | current | |||
— | — | MD 124 in Gaithersburg | Gaithersburg | 1930 | 1974 | |||
5.83 | 9.38 | MD 124 in Redland | MD 655 at Norbeck | 1928 | current | |||
— | — | US 29 / MD 108 in Ashton | Brighton Dam Road near Brinklow | 1928 | 1960 | |||
12.17 | 19.59 | MD 28 in Dawsonville | Muddy Branch Road in Gaithersburg | 1927 | current | |||
7.08 | 11.39 | MD 28 in Darnestown | MD 355 in Germantown | 1927 | current | |||
7.47 | 12.02 | MD 28 in Rockville | Middlebrook Road in Germantown | 1999 | current | |||
— | — | Near Germantown | MD 117 in Germantown | 1927 | 1958 | |||
— | — | MD 118 in Germantown | Germantown | 1930 | 1999 | |||
3.96 | 6.37 | MD 117 in Boyds | Stringtown Road in Clarksburg | 1927 | current | section from MD 117 to MD 28 decommissioned 1999 | ||
2.96 | 4.76 | Rolling Road in Woodlawn | Cooks Lane in Baltimore | 1991 | current | |||
— | — | Clarksburg Road near Damascus | MD 27 in Damascus | 1927 | 1974 | |||
— | — | MD 75 near Hyattstown | MD 122 near Damascus | 1927 | 1974 | |||
17.03 | 27.41 | MD 28 in Gaithersburg | MD 108 in Damascus | 1927 | current | |||
3.59 | 5.78 | Howard–Baltimore county line near Woodstock | Just east of Dogwood Road in Randallstown | 1927 | current | |||
— | — | Windsor Mill Road in Woodlawn | MD 26 in Baltimore | 1927 | 1999 | |||
— | — | MD 140 in Reisterstown | Western Maryland Railway near Glyndon | 1927 | 1987 | |||
7.62 | 12.26 | MD 30 / MD 795 in Reisterstown | MD 25 in Butler | 1930 | current | |||
15.43 | 24.83 | US 40 in Baltimore | Garrison Forest Road near Reisterstown | 1927 | current | |||
5.57 | 8.96 | MD 140 in Garrison | MD 25 in Brooklandville | 1927 | current | |||
3.06 | 4.92 | MD 25 in Brooklandville | MD 45 in Lutherville | 1927 | current | |||
2.15 | 3.46 | Aberdeen | Norman Avenue in Aberdeen | — | — | Longest section | ||
— | — | MD 131 near Mays Chapel | Timonium Road near Mays Chapel | 1930 | 1961 | |||
3.31 | 5.33 | MD 129 in Pikesville | MD 25 near Brooklandville | 1927 | current | |||
1.63 | 2.62 | MD 139 near Towson | Ruxton Road near Towson | 1928 | current | |||
29.00 | 46.67 | US 219 in Oakland | US 220 in McCoole | — | — | |||
30.04 | 48.34 | MD 7 near Riverside | MD 23 in Norrisville | 1927 | current | |||
8.50 | 13.68 | Gunpowder Road near Hampstead | MD 45 in Hereford | 1927 | current | |||
9.24 | 14.87 | MD 45 in Hereford | MD 23 in Shawsville | 1927 | current | |||
7.88 | 12.68 | US 1 in Baltimore | I-695 in Lutherville | 1927 | current | |||
49.72 | 80.02 | US 1 in Baltimore | PA 16 near Emmitsburg | — | — | |||
— | — | MD 139 in Towson | US 111 / MD 146 / MD 148 in Towson | 1927 | 1961 | |||
— | — | Wiseburg Road in White Hall | MD 23 in Shawsville | 1927 | 1981 | |||
— | — | MD 45 in Cockeysville | Just north of Bosley Road near Loch Raven Reservoir | 1927 | 1983 | |||
17.55 | 28.24 | MD 807 in Cumberland | US 40 Scenic near Flintstone | — | — | Longest section | ||
— | — | US 111 / MD 141 / MD 148 in Towson | Hampton Lane in Hampton | 1927 | 1940 | |||
10.34 | 16.64 | MD 45 in Cockeysville | MD 165 near Baldwin | 1927 | current | |||
File:MD Route 146.svg MD 146 | 16.81 | 27.05 | MD 45 in Towson | MD 23 near Jarrettsville | 1928 | current | ||
18.82 | 30.29 | US 1 in Baltimore | US 1 / US 1 Business near Bel Air | 1927 | current | |||
— | — | US 111 / MD 146 / MD 141 in Towson | US 1 in Perry Hall | 1927 | 1963 | |||
— | — | White Marsh | Chase | 1927 | 1966 | |||
13.01 | 20.94 | US 40 in Baltimore | Graces Quarter Road in Chase | 1927 | current | |||
10.80 | 17.38 | Sparrows Point | US 1 in Baltimore | 1927 | current | |||
17.34 | 27.91 | Aberdeen Proving Ground | MD 146 near Jarrettsville | 1927 | current | |||
— | — | US 1 in Bel Air | MD 7 in Edgewood | 1927 | 1940 | |||
— | — | I-70 in Myersville | Wolfsville | 1956 | 1985 | |||
— | — | MD 22 near Churchville | Kalmia | 1927 | 1955 | |||
9.12 | 14.68 | MD 22 in Churchville | US 40 / MD 7 in Havre de Grace | 1927 | current | |||
3.92 | 6.31 | MD 22 near Churchville | MD 155 near Havre de Grace | 1927 | current | swapped with MD 155 in 1952 | ||
4.79 | 7.71 | MD 158 in Sparrows Point | I-695 in Dundalk | — | — | |||
— | — | MD 462 near Aberdeen | Havre de Grace | 1927 | 1956 | |||
2.35 | 3.78 | Riverside Drive in Sparrows Point | North Point Road in Edgemere | — | — | |||
— | — | US 40 in Belcamp | Creswell Road near Belcamp | 1927 | 1956 | |||
4.73 | 7.61 | Bush River | US 40 / MD 7 in Aberdeen | 1928 | current | |||
— | — | MD 161 in Darlington | US 1 at Conowingo Dam | 1930 | 1955 | |||
5.38 | 8.66 | MD 155 near Havre de Grace | US 1 in Darlington | 1927 | current | |||
2.31 | 3.72 | MD 176 near Glen Burnie | MD 170 in Linthicum | — | — | |||
— | — | US 1 near Darlington | Susquehanna River | 1928 | 1956 | |||
— | — | MD 165 near Pylesville | Deer Creek | 1933 | 1955 | |||
2.63 | 4.23 | Carpenter Point | MD 267 in Charlestown | 1933 | 1979 | |||
20.38 | 32.80 | Just north of Long Green Pike in Baldwin | PA 74 in Cardiff | 1927 | current | |||
2.71 | 4.36 | I-195 in Arbutus | MD 144 in Catonsville | 1927 | current | |||
— | — | MD 170 in Linthicum | Patapsco River | 1929 | 1974 | |||
1.28 | 2.06 | Hammonds Ferry Road in North Linthicum | MD 648 in Pumphrey | 1929 | current | |||
0.97 | 1.56 | Hammonds Ferry Road in Linthicum Heights | MD 648 in Linthicum | — | — | |||
12.98 | 20.89 | MD 175 in Odenton | MD 2 in Brooklyn Park | 1927 | current | |||
1.54 | 2.48 | MD 2 in Brooklyn Park | MD 173 in Baltimore | 1927 | current | |||
0.17 | 0.27 | U.S. Coast Guard Yard | MD 173 in Baltimore | 1930 | current | |||
13.73 | 22.10 | Fort Smallwood Park | MD 2 in Baltimore | 1927 | current | |||
5.94 | 9.56 | Fort Meade | MD 3 Business in Glen Burnie | 1927 | current | |||
17.01 | 27.37 | Little Patuxent Parkway in Columbia | MD 3 in Millersville | 1927 | current | |||
5.68 | 9.14 | Hanover | MD 648 in Glen Burnie | 1929 | current | |||
10.92 | 17.57 | MD 2 in Pasadena | Gibson Island | 1927 | current | |||
8.06 | 12.97 | MD 450 in Parole | Veterans Highway near Millersville | 1927 | current | |||
3.16 | 5.09 | MD 648 near Annapolis | Cape Saint Claire | 1927 | current | |||
14.63 | 23.54 | US 340 in Knoxville | I-70 in Frederick | — | — | |||
— | — | Fort Meade | US 301 in Millersville | 1930 | 1946 | |||
0.16 | 0.26 | Spa Creek Bridge in Annapolis | 1927 | current | decommissioned in 1999 and recommissioned in 2009 | |||
6.60 | 10.62 | MD 97 in Glenmont | MD 108 near Sandy Spring | 1927 | current | |||
— | — | MD 97 in Glenmont | MD 650 in Colesville | 1927 | 1981 | |||
0.36[3] | 0.58 | US 29 in Silver Spring | Blair Road in Washington, D.C. | 1927 | 1999 | |||
8.32 | 13.39 | Connecticut Avenue in Washington, D.C. | MD 97 in Aspen Hill | — | — | |||
— | — | MD 184 | MD 605 | 1927 | 1958 | bridge over railroad that has nothing remaining | ||
1.52 | 2.45 | Western Avenue in Washington, D.C. | MD 410 in Chevy Chase | 1927 | current | |||
5.46 | 8.79 | MD 355 / MD 410 in Bethesda | MD 355 in North Bethesda | 1927 | current | |||
3.25 | 5.23 | MacArthur Boulevard in Glen Echo | MD 187 in Bethesda | 1927 | current | |||
5.05 | 8.13 | MD 190 in Potomac | Maryland Avenue in Rockville | 1927 | current | |||
15.88 | 25.56 | MD 112 in Seneca | River Road in Washington, D.C. | 1927 | current | |||
7.16 | 11.52 | MD 190 in Potomac | MD 185 in Chevy Chase | 1927 | current | section from MD 190 to Macarthur Blvd decommissioned 1999 | ||
2.82 | 4.54 | Summit Avenue in Kensington | MD 97 in Forest Glen | 1927 | current | |||
26.07 | 41.96 | MD 185 in Kensington | MD 202 near Upper Marlboro | 1927 | current | |||
22.40 | 36.05 | MD 26 in Ceresville | PA 194 near Taneytown | 1956 | current | |||
— | — | MD 195 in Takoma Park | MD 516 in Silver Spring | 1927 | 1956 | |||
1.90 | 3.06 | Carroll Avenue in Washington, D.C. | MD 193 in Takoma Park | 1930 | current | |||
— | — | US 29 in White Oak | MD 198 in Burtonsville | 1930 | 1999 | |||
14.64 | 23.56 | US 301 in Bowie | MD 198 in Laurel | 1927 | current | |||
14.14 | 22.76 | MD 650 near Spencerville | Fort Meade | 1927 | current | |||
— | — | US 50 near Glenn Dale | Washington, Baltimore and Annapolis Electric Railway | 1927 | 1956 | |||
17.47 | 28.12 | I-370 in Derwood | US 1 near Beltsville | 2011 | current | |||
— | — | MD 4 in Coral Hills | MD 214 in Capitol Heights | 1927 | 1955 | |||
9.40 | 15.13 | DC 295 near Bladensburg | MD 212 in Beltsville | 1927 | current | |||
13.92 | 22.40 | MD 450 in Bladensburg | MD 725 near Upper Marlboro | 1927 | current | |||
— | — | US 1 in College Park | Baltimore and Ohio Railroad | 1927 | 1957 | |||
— | — | Takoma Park | MD 212 in Chillum | 1928 | 1955 | |||
— | — | US 50 in Bladensburg | MD 430 in Greenbelt | 1927 | 1956 | |||
— | — | MD 5 in Waldorf | US 301 / MD 5 in Waldorf | 1989 | 1997 | |||
3.17 | 5.10 | MD 212 near Beltsville | Old Gunpowder Road in West Laurel | 2014 | current | |||
— | — | US 1 Alternate in Cottage City | US 1 in Brentwood | 1927 | 1970 | |||
— | — | MD 208 in Cottage City | Bunker Hill Rd. in Cottage City | 1927 | 1970 | 2 roads on each side of the Amtrak train tracks. | ||
1.86 | 2.99 | US 1 Alternate in Cottage City | MD 500 in Hyattsville | 1927 | current | |||
— | — | MD 212 in Chillum | Hyattsville | 1927 | 1946 | |||
20.86 | 33.57 | Indian Head Naval Surface Weapons Center | South Capitol Street in Washington, D.C. | 1955 | current | |||
— | — | Queens Chapel Road in Washington, D.C. | MD 209 in Hyattsville | 1927 | 1946 | |||
— | — | Sargent Road in Washington, D.C. | MD 212 in Chillum | 1927 | 1997 | |||
10.43 | 16.79 | Riggs Road in Washington, D.C. | MD 201 in Beltsville | 1927 | current | |||
68.25 | 109.84 | MD 662 in Wye Mills | PA 841 near Fair Hill | — | — | |||
24.97 | 40.19 | East Capitol Street in Washington, D.C. | Beverly Beach | 1927 | current | |||
— | — | MD 103 near Elkridge | US 1 in Elkridge | 1927 | 1956 | |||
9.06 | 14.58 | MD 108 in Highland | MD 198 in Laurel | 1927 | current | |||
— | — | MD 103 near Elkridge | Ilchester | 1927 | 1956 | |||
1.14 | 1.83 | Suitland Road in Washington, D.C. | MD 458 in Suitland | 1927 | current | |||
0.22 | 0.35 | Section of future course of US 219 in Oakland | — | — | ||||
0.59 | 0.95 | Section of Ritchie–Marlboro Road through its interchange with I-95 / I-495 near Largo | — | — | ||||
— | — | MD 214 near Largo | MD 4 near Upper Marlboro | 1927 | 1955 | |||
11.36 | 18.28 | MD 7 in Perryville | US 1 near Conowingo | 1972 | current | |||
12.65 | 20.36 | Piscataway | Melwood | 1927 | current | |||
26.70 | 42.97 | MD 6 at Riverside | MD 227 at Pomonkey | 1927 | current | Section along MD 227 to MD 210 deleted 1956; section along MD 210 and Livingston Road deleted 1955 | ||
10.59 | 17.04 | MD 210 in Potomac Heights | US 301 in La Plata | 1927 | current | |||
— | — | MD 224 at Bryans Road | Marshall Hall | 1927 | 1956 | |||
13.96 | 22.47 | Marshall Hall | US 301 in White Plains | 1927 | current | |||
6.86 | 11.04 | MD 210 in Accokeek | US 301 / MD 5 Business in Waldorf | 1927 | current | |||
5.25 | 8.45 | MD 227 near Bennsville | MD 228 near Bennsville | 1995 | current | |||
— | — | Morgantown | MD 3 at Wayside | 1927 | 1956 | |||
— | — | MD 3 at Newburg | Mount Victoria | 1927 | 1956 | |||
16.39 | 26.38 | Olivers Shop Road near Bryantown | MD 765 in Prince Frederick | 1927 | current | |||
— | — | MD 234 at Wicomico | MD 382 near Waldorf | 1927 | 1989 | |||
— | — | MD 5 near Waldorf | Charles–Prince George's county line near Aquasco | 1927 | 1956 | |||
19.02 | 30.61 | US 301 near Newburg | MD 5 in Leonardtown | 1927 | current | |||
30.63 | 49.29 | MD 5 in Ridge | MD 5 in Oraville | 1927 | current | Longest state highway within a single county | ||
6.19 | 9.96 | MD 234 near Budds Creek | MD 5 in Charlotte Hall | 1930 | current | |||
2.95 | 4.75 | MD 246 in Lexington Park | MD 235 in California | 1987 | current | |||
— | — | MD 234 / MD 238 at Chaptico | MD 5 near Leonardtown | 1927 | 1961 | |||
10.83 | 17.43 | MD 242 near Bushwood | MD 5 near Morganza | 1927 | current | |||
1.64 | 2.64 | Bushwood | MD 242 near Bushwood | 1927 | current | |||
— | — | MD 242 / MD 470 at Avenue | Abell | 1928 | 1956 | |||
12.80 | 20.60 | Coltons Point | MD 5 at Morganza | 1927 | current | |||
4.62 | 7.44 | Compton | MD 5 in Leonardtown | 1927 | current | |||
10.48 | 16.87 | MD 5 near Leonardtown | MD 249 in Valley Lee | 1927 | current | |||
7.55 | 12.15 | MD 5 in Leonardtown | Sotterley | 1927 | current | |||
3.35 | 5.39 | MD 5 in Great Mills | Naval Air Station Patuxent River | 1927 | current | |||
2.89 | 4.65 | MD 5 near Loveville | Oakville Road in Oakville | 1942 | current | |||
2.89 | 4.65 | MD 246 in Lexington Park | near Hermanville | 1927 | 1933 | |||
— | — | MD 246 near Jarboesville | Cedar Point | 1927 | 1943 | |||
9.84 | 15.84 | St. George Island | MD 5 at Callaway | 1927 | current | |||
— | — | West of Valley Lee | MD 249 at Valley Lee | 1927 | 1946 | |||
0.19 | 0.31 | US 13 Business in Pocomoke City | US 13 / US 113 in Pocomoke City | 1946 | current | |||
— | — | MD 249 at Valley Lee | Drayden | 1928 | 1946 | |||
— | — | MD 430 at Berwyn Heights | MD 434 at Berwyn Heights | 1946 | 1977 | |||
— | — | Millers Wharf Road | MD 5 at Ridge | 1927 | 1983 | |||
1.34 | 2.16 | MD 214 in Edgewater | MD 2 in Edgewater | 1927 | current | |||
— | — | MD 424 in Davidsonville | MD 2 in Edgewater | 1927 | 1939 | |||
1.25 | 2.01 | Cobb Island | MD 257 near Rock Point | 1958 | current | |||
4.21 | 6.78 | MD 2 near Owensville | Galesville | 1927 | current | |||
5.28 | 8.50 | MD 2 in Tracys Landing | MD 468 in Shady Side | 1927 | current | |||
— | — | MD 2 in Tracys Landing | Deale | 1927 | 1939 | |||
9.75 | 15.69 | MD 254 near Rock Point | US 301 in Newburg | 1957 | current | |||
7.13 | 11.47 | MD 4 in Bristol | MD 256 in Deale | 1928 | current | |||
2.67 | 4.30 | MD 794 in Bristol | MD 408 near Lothian | 1928 | current | |||
8.68 | 13.97 | MD 4 at Lyons Creek | MD 261 in Chesapeake Beach | 1927 | current | |||
12.86 | 20.70 | MD 263 near Parran | MD 778 in Friendship | 1930 | current | |||
4.47 | 7.19 | Lower Marlboro | MD 4 in Sunderland | 1927 | current | |||
6.17 | 9.93 | MD 2 / MD 4 near Huntingtown | Plum Point | 1927 | current | |||
6.66 | 10.72 | Broomes Island | MD 2 / MD 4 near Port Republic | 1927 | current | |||
1.75 | 2.82 | Wallville | MD 264 at Mutual | 1929 | current | |||
— | — | Sollers | MD 2 in Lusby | 1928 | 1957 | |||
1.90 | 3.06 | MD 7 near Charlestown | MD 7 in Charlestown | 1927 | current | |||
11.68 | 18.80 | US 40 in Perryville | US 1 at Conowingo | 1927 | 1938 | |||
0.95 | 1.53 | Main Street in Elkton | MD 279 in Elkton | 1968 | current | |||
6.40 | 10.30 | US 222 in Port Deposit | MD 276 near Colora | 1927 | 1984 | |||
2.16 | 3.48 | MD 648 in Glen Burnie | MD 3 Business in Glen Burnie | 1932 | current | |||
0.33 | 0.53 | North from MD 7 in Perryville | 1930 | 1968 | ||||
20.67 | 33.27 | Elk Neck State Park | PA 272 near Calvert | 1927 | current | |||
16.74 | 26.94 | US 1 near Harrisville | DE 273 near Newark, DE | 1927 | current | |||
7.35 | 11.83 | MD 273 in Rising Sun | MD 272 at Bay View | 1927 | current | |||
— | — | MD 213 in Kingstown | dead end in Kingstown | 1927 | 1946 | |||
2.22 | 3.57 | MD 222 / MD 824 in Perryville | MD 276 near Port Deposit | 1967 | current | |||
7.85 | 12.63 | MD 222 in Port Deposit | US 1 near Harrisville | 1927 | current | |||
2.51 | 4.04 | Elk Mills | MD 279 near Elkton | 1927 | current | |||
0.21 | 0.34 | Delaware state line in northeastern Cecil County | Pennsylvania state line in northeastern Cecil County | 1927 | 1946 | |||
4.95 | 7.97 | US 40 / MD 7 near Elkton | DE 279 near Elkton | 1927 | current | |||
9.40 | 15.13 | US 40 / US 213 in Elkton | PA 841 near Fair Hill | 1927 | 1971 | |||
2.12 | 3.41 | MD 7 in Elkton | Old Baltimore Pike at the Delaware state line near Elkton | 1933 | current | |||
12.43 | 20.00 | White Crystal Beach | DE 299 near Warwick | 1927 | current | |||
4.46 | 7.18 | Crystal Beach | MD 282 in Earleville | 1928 | 1958 | |||
0.25 | 0.40 | Hemphill Street between intersections with MD 285 in Chesapeake City | 1927 | current | ||||
2.43 | 3.91 | MD 213 near Chesapeake City | Chesapeake City Road at Delaware state line near Chesapeake City | 1930 | current | |||
2.09 | 3.36 | MD 537 in Chesapeake City | DE 286 near Chesapeake City | 1930 | current | |||
2.88 | 4.63 | MD 313 in Goldsboro | DE 10 near Sandtown, DE | 1933 | current | |||
3.33 | 5.36 | MD 20 in Rock Hall | Crosby | 1927 | current | |||
8.83 | 14.21 | Cliffs City | MD 213 in Chestertown | 1927 | current | |||
17.20 | 27.68 | MD 300 near Sudlersville | MD 299 in Sassafras | 1927 | current | |||
18.34 | 29.52 | MD 20 in Chestertown | DE 6 near Millington | 1930 | current | |||
4.61 | 7.42 | MD 298 in Still Pond | Betterton | 1927 | current | |||
— | — | Ericsson Avenue in Betterton | 1930 | 1988 | Longest section | |||
— | — | Wheeler Avenue in Betterton | 1930 | 1948 | ||||
— | — | Howell Point Road in Betterton | 1930 | 1948 | ||||
32.52 | 52.34 | US 50 near Cheverly | US 40 in Baltimore | — | — | |||
— | — | First Avenue in Betterton | 1930 | 1948 | ||||
3.59 | 5.78 | MD 213 near Chestertown | MD 298 in Worton | 1927 | current | |||
20.14 | 32.41 | MD 20 in Fairlee | MD 291 near Chesterville | 1930 | current | |||
5.67 | 9.12 | MD 313 / MD 330 at Massey | US 301 near Warwick | 1929 | current | |||
13.55 | 21.81 | MD 213 in Church Hill | DE 300 near Sudlersville | 1927 | current | Contiguous sections | ||
— | — | MD 300 at Dudley Corners | Crumpton | 1927 | 1940 | |||
10.21 | 16.43 | US 301 near Barclay | DE 11 near Templeville | 1927 | current | |||
— | — | US 213 south of Centreville | Queen Anne | 1927 | 1955 | |||
4.20 | 6.76 | MD 309 in Cordova | MD 404 in Queen Anne | 1961 | current | |||
15.23 | 24.51 | Corsica Neck Road west of Centreville | MD 312 in Bridgetown | 1927 | current | |||
5.08 | 8.18 | MD 213 in Centreville | Hope | 1927 | current | |||
4.13 | 6.65 | Federalsburg | Delaware state line near Federalsburg | 1927 | current | |||
6.05 | 9.74 | MD 331 in Hurlock | Federalsburg | 1927 | current | |||
0.12 | 0.19 | MD 313 / MD 318 in Federalsburg | Federalsburg | 1927 | current | |||
18.50 | 29.77 | US 50 in Easton | MD 213 near Centreville | 1927 | current | |||
3.96 | 6.37 | MD 213 near Chesapeake City | Churchtown Road at Delaware state line near Chesapeake City | 1927 | current | |||
6.11 | 9.83 | MD 313 in Goldsboro | MD 454 in Marydel | 1927 | current | |||
11.41 | 18.36 | MD 404 near Ridgely | MD 313 at Baltimore Corner | 1927 | current | |||
75.72 | 121.86 | US 50 in Mardela Springs | MD 213 / MD 290 in Galena | 1927 | current | Contiguous sections | ||
4.93 | 7.93 | Greensboro | DE 12 in Whiteleysburg | 1927 | current | |||
— | — | Sunset Avenue in Greensboro | MD 313 / MD 480 in Greensboro | 1927 | 1950 | |||
3.13 | 5.04 | MD 313 / MD 318 in Federalsburg | MD 318 near Federalsburg | 1964 | current | |||
2.67 | 4.30 | MD 279 in Elkton | MD 277 near Elk Mills | 1927 | current | |||
4.78 | 7.69 | MD 313 near Denton | DE 14 in Burrsville | 1927 | current | |||
11.32 | 18.22 | MD 16 / MD 331 near Preston | DE 18 near Federalsburg | 1927 | current | |||
— | — | MD 16 / MD 331 near Preston | Federalsburg | 1928 | 1956 | |||
2.84 | 4.57 | Piney Branch Road in Washington, D.C. | MD 650 in Adelphi | 1927 | current | |||
— | — | Old Washington Rd (then MD 477) in Elkridge | US 1 in Elkridge | 1931 | 1954 | |||
— | — | Brumbaugh St in Elkridge | Railroad in Elkridge | 1931 | 1946 | |||
— | — | MD 313 near Federalsburg | MD 16 / MD 404 at Andersontown | 1952 | 1954 | |||
5.12 | 8.24 | US 50 south of Easton | US 50 in Easton | — | — | |||
— | — | Railroad in Elkridge | Railroad Ave in Elkridge | 1931 | 1946 | |||
0.40 | 0.64 | Preston | MD 16 / MD 331 in Preston | 1927 | current | |||
— | — | Spring Grove State Hospital | MD 144 in Catonsville | 1930 | 1978 | |||
— | — | Leonardtown Wharf | MD 5 in Leonardtown | 1933 | 1985 | |||
— | — | MD 6 near Port Tobacco | US 301 near La Plata | 1930 | 1956 | |||
0.51 | 0.82 | MD 7 in Perryville | Perryville | 1968 | current | |||
15.24 | 24.53 | US 50 in Easton | West Denton | 1927 | current | |||
3.29 | 5.29 | MD 33 west of Royal Oak | MD 33 east of Royal Oak | 1927 | current | |||
— | — | US 1 in Kingsville | Bradshaw Road in Kingsville | 1927 | 1985 | |||
3.72 | 5.99 | MD 299 / MD 313 at Massey | Clayton Road at Delaware state line near Massey | 1988 | current | |||
28.74 | 46.25 | US 50 in Vienna | US 50 in Easton | — | — | |||
— | — | MD 16 in Cambridge | US 213 in Easton | 1927 | 1939 | |||
1.07 | 1.72 | Central Avenue in Washington, D.C. | MD 214 in Seat Pleasant | — | — | |||
— | — | MD 565 in Easton | MD 331 in Easton | 1927 | 1961 | |||
9.79 | 15.76 | Oxford | Washington Street in Easton | 1927 | current | |||
0.61 | 0.98 | MD 322 in Easton | Washington Street in Easton | 1927 | current | |||
16.36 | 26.33 | Hooper's Island | MD 16 in Church Creek | 1927 | current | |||
4.87 | 7.84 | MD 335 at Crossroads | Lakesville | 1927 | current | |||
3.41 | 5.49 | MD 5 in Camp Springs | MD 4 in Meadows | 1927 | current | |||
1.24 | 2.00 | Octoraro Creek | US 1 / US 222 at Conowingo | 1927 | 1979 | |||
— | — | MD 331 in Rhodesdale | MD 331 in Rhodesdale | 1927 | 1954 | |||
— | — | US 29 in Silver Spring | MD 320 in Silver Spring | 1955 | 1999 | |||
1.25 | 2.01 | MD 16 near Cambridge | MD 343 in Cambridge | — | — | |||
— | — | MD 14 near Brookview | MD 14 near Brookview | 1927 | 1965 | |||
— | — | MD 16 near Secretary | MD 14 in Secretary | 1927 | 1939 | Became part of MD 14 | ||
2.82 | 4.54 | MD 310 at St. Augustine | MD 537 in Chesapeake City | 1941 | current | |||
11.29 | 18.17 | Hudson | US 50 in Cambridge | 1927 | current | |||
— | — | MD 16 at Mount Holly | US 213 in Vienna | 1927 | 1939 | |||
2.16 | 3.48 | MD 6 in Doncaster | MD 224 near Chicamuxen | 1957 | current | |||
— | — | Backbone Mountain | US 50 near Redhouse | 1940 | 1954 | |||
23.72 | 38.17 | US 50 Business in Salisbury | US 50 near Berlin | — | — | |||
6.92 | 11.14 | MD 349 in Quantico | US 50 in Hebron | 1927 | current | |||
1.39 | 2.24 | Sharptown | DE 24 near Sharptown | 1930 | current | |||
22.32 | 35.92 | Nanticoke | US 50 Business in Salisbury | 1927 | current | |||
11.80 | 18.99 | Main Street in Salisbury | MD 354 in Powellville | 1927 | current | |||
— | — | Little Brown Road | MD 663 in Fruitland | 1927 | 1956 | |||
4.24 | 6.82 | Church Hill | MD 180 in Frederick | 1987 | 2002 | |||
4.24 | 6.82 | Church Hill | MD 180 in Frederick | 2003 | 2014 | |||
10.03 | 16.14 | MD 349 at Coxs Corner | MD 349 near Catchpenny | 1933 | current | |||
5.08 | 8.18 | US 50 in Pittsville | MD 54 / DE 54 / DE 26 at the Delaware state line near Gumboro, DE | 1927 | current | |||
14.98 | 24.11 | MD 12 near Snow Hill | US 50 in Willards | 1927 | current | |||
36.94 | 59.45 | Wisconsin Avenue in Washington, D.C. | Frederick | 1954 | current | |||
0.1 | 0.16 | MD 413 in Crisfield | 1927 | 1954 | ||||
— | — | MD 413 near Kingston | MD 667 in Kingston | 1927 | 1961 | |||
— | — | Tulls Corner Road near Marion Station | Charles Cannon Road near Marion Station | 1927 | 1991 | |||
1.13 | 1.82 | MD 413 in Crisfield | Near Crisfield | 1927 | current | Originally MD 475; formerly continued south and east to MD 380 | ||
— | — | Boone Road | MD 380 near Crisfield | 1927 | 1960 | |||
1.09 | 1.75 | Pocomoke City | MD 756 near Pocomoke City | 1974 | current | |||
— | — | Sackertown Road | MD 358 near Crisfield | 1927 | 1960 | |||
5.62 | 9.04 | Fairmount | MD 413 in Westover | 1927 | current | |||
6.23 | 10.03 | Mount Vernon | MD 675 in Princess Anne | 1929 | current | |||
18.30 | 29.45 | Deal Island | Mansion Avenue in Princess Anne | 1927 | current | |||
5.43 | 8.74 | US 13 / US 13 Business in West Pocomoke | Pocomoke State Forest | 1927 | current | |||
6.29 | 10.12 | US 113 Business in Snow Hill | Public Landing | 1927 | current | |||
11.17 | 17.98 | US 13 Business in Pocomoke City | George Island Landing | 1927 | current | |||
2.60 | 4.18 | Bishop | Hudson Road at Delaware state line near Bishopville | 1927 | current | |||
0.28 | 0.45 | MD 367 in Bishopville | Bishopville | 1927 | current | |||
— | — | US 113 in Basket Switch | Railroad Crossing | 1927 | 1956 | |||
1.58 | 2.54 | MD 33 near Easton | Unionville | 1933 | current | |||
4.27 | 6.87 | Cedar Hall | Pocomoke City | 1930 | current | |||
2.86 | 4.60 | MD 166 in Arbutus | US 1 in Baltimore | 1927 | current | |||
8.16 | 13.13 | MD 210 in Accokeek | Brandywine Road near Brandywine | 1927 | current | |||
9.98 | 16.06 | MD 354 in Powellville | MD 818 in Berlin | 1927 | current | |||
0.06 | 0.097 | MD 818 in Berlin | MD 374 in Berlin | 1927 | current | |||
4.56 | 7.34 | MD 818 in Berlin | MD 611 near Sinepuxent | 1927 | current | |||
0.78 | 1.26 | MD 376 in Berlin | MD 346 in Berlin | 1927 | current | |||
1.49 | 2.40 | MD 528 in Ocean City | MD 528 in Ocean City | 1927 | current | |||
— | — | MD 5 in Leonardtown | End of pavement | 1939 | 1978 | |||
1.56 | 2.51 | Lawsonia | Crisfield | 1934 | current | |||
15.91 | 25.60 | MD 231 in Patuxent | US 301 in Brandywine | 1927 | current | |||
15.34 | 24.69 | Poplar Hill | US 301 in Marlton | 1927 | current | |||
5.48 | 8.82 | MD 180 near Jefferson | MD 17 near Middletown | 1930 | current | |||
0.53 | 0.85 | MD 390 in Silver Spring | US 29 / MD 97 in Silver Spring | 1929 | current | |||
— | — | Marshyhope Creek | Delaware state line | 1927 | 1946 | |||
— | — | MD 352 north of Whitehaven | MD 349 | 1948 | 1964 | |||
— | — | Truck House Road | MD 648 in Severna Park | 1930 | 1973 | |||
1.68 | 2.70 | Ferry Point Road near Annapolis | MD 435 / MD 450 in Annapolis | 1930 | current | |||
2.38 | 3.83 | MD 675 in Princess Anne | East of Princess Anne | 1930 | current | |||
— | — | MD 214 | MD 704 in Seat Pleasant | 1930 | 1955 | |||
1.09 | 1.75 | 16th Street in Washington, D.C. | MD 97 in Silver Spring | 1930 | current | |||
— | — | MD 192 in Forest Glen | MD 320 in Silver Spring | 1930 | 1999 | |||
13.54 | 21.79 | MD 16 in East New Market | DE 20 in Reliance | 1930 | current | |||
— | — | MD 468 | Galesville | 1930 | 1949 | |||
0.63 | 1.01 | MD 2 in Parole | MD 450 in Annapolis | 1953 | current | |||
— | — | West of Templeville | East of Templeville | 1930 | 1939 | Became part of MD 302 | ||
— | — | US 219 at Gortner | Loch Lynn Heights | 1940 | 1954 | |||
— | — | US 113 at Snow Hill | US 113 | 1977 | 1997 | |||
— | — | US 220 at Snow Hill | US 40 | 1927 | 1983 | |||
2.21 | 3.56 | MD 614 in Bethesda | Massachusetts Avenue in Washington, D.C. | 1931 | current | |||
— | — | Indian Bone Road in Airey | US 50/MD 16 in Mount Holly | 1930 | 1973 | |||
— | — | US 11 in Williamsport | MD 58 in Cearfoss | 1930 | 1957 | |||
— | — | MD 108 in Damascus | near Long Corner Road | 1930 | 1974 | |||
— | — | MD 140 | Mount Wilson Hospital Center near Garrison | 1930 | 1989 | |||
— | — | MD 25 | Yeoho Road near Butler | 1930 | 1985 | |||
4.33 | 6.97 | MD 2 / MD 4 in Prince Frederick | Dares Beach | 1930 | current | |||
— | — | MD 155 | MD 155 | 1930 | 1942 | |||
— | — | MD 500 in Hyattsville | US 1 in Riverdale | 1942 | 1956 | |||
24.61 | 39.61 | MD 662 in Wye Mills | DE 404 near Andersontown | 1930 | current | |||
8.59 | 13.82 | MD 304 near Ruthsburg | MD 19 near Church Hill | 1930 | current | |||
— | — | MD 667 in Hudson Corner | US 13 in West Pocomoke | 1930 | 1961 | |||
3.81 | 6.13 | MD 31 near Marston | MD 27 near Taylorsville | 1930 | current | |||
— | — | Aberdeen Proving Ground (then the Edgewood Arsenal) | MD 7 in Edgewood | 1930 | 1952 | |||
5.62 | 9.04 | MD 4 at Waysons Corner | MD 2 / MD 422 in Lothian | 1965 | current | |||
— | — | Northern Central Railway at Freeland | Interstate 83 at Maryland Line | 1930 | 1991 | |||
13.92 | 22.40 | MD 187 / MD 355 in Bethesda | Pennsy Drive near Glenarden | 1930 | current | |||
— | — | MD 206 (now MD 208) in Brentwood | US 1 in Hyattsville | 1930 | 1946 | |||
— | — | US 1 in Riverdale | MD 201 in Riverdale | 1930 | 1991 | two sections; western section removed in 1978 | ||
14.61 | 23.51 | Crisfield | US 13 near Westover | 1930 | current | |||
5.11 | 8.22 | Oxon Hill | MD 5 in Silver Hill | 1930 | current | |||
— | — | MD 5 | Chesapeake Bay shore near Scotland | 1930 | 1956 | |||
— | — | MD 4 at Waysons Corner | Solomons | 1930 | 1965 | |||
— | — | US 40 (now US 40 Alternate) | Pennsylvania State Line at Grantsville | 1930 | 1963 | |||
4.62 | 7.44 | MD 60 in Leitersburg | PA QR 2007 near Ringgold | 1930 | current | |||
— | — | Martinsburg Road curve near Potomac River in Dickerson | Mt. Ephraim Road and Sugarloaf Mountain Road in Dickerson | 1930 | 1959 | was concurrent with MD 28 from Martinsburg Road to Mt. Ephraim Road | ||
— | — | Goshen Road in Goshen | Sundown Road east of Laytonsville | 1930 | 1973 | section from Goshen Road to MD 124 removed 1959 | ||
— | — | MD 190 near Travilah | Glen Road near Travilah | 1930 | 1959 | |||
3.04 | 4.89 | Bayard | MD 2 / MD 408 in Lothian | — | — | |||
2.79 | 4.49 | MD 2 near Tracys Landing | Fairhaven | — | — | |||
8.24 | 13.26 | MD 214 in Davidsonville | MD 3 in Crofton | — | — | |||
11.77 | 18.94 | MD 6 near Nanjemoy | MD 224 near Mason Springs | — | — | |||
File:MD Route 426.svg MD 426 | — | — | Potomac River | MD 6 in Travilah | 1930 | 1956 | ||
File:MD Route 427.svg MD 427 | — | — | Port Tobacco River | US 301 in Bel Alton | 1930 | 1989 | ||
File:MD Route 428.svg MD 428 | — | — | MD 6 in Dentsville | MD 234 in Newport | 1930 | 1956 | ||
File:MD Route 429.svg MD 429 | — | — | Popes Creek | US 301 in Faulkner | 1930 | 1956 | ||
File:MD Route 430.svg MD 430 | 0.49 | 0.79 | US 1 in College Park | MD 193 in College Park | — | — | ||
File:MD Route 431.svg MD 431 | — | — | MD 244 (now Drayden Road) in Drayden | End of state maintenance | 1930 | 1956 | ||
File:MD Route 431.svg MD 431 | 2.06 | 3.32 | MD 201 in Riverdale Park | US 1 in College Park | 2019 | current | ||
File:MD Route 432.svg MD 432 | — | — | Stringtown Road | MD 27 near Clarksburg | 1930 | 1956 | ||
File:MD Route 432.svg MD 432 | 0.25 | 0.40 | Spur from Guilford Road in Columbia | 1971 | current | |||
File:MD Route 433.svg MD 433 | — | — | Powder Mill Road west of US 1 in Beltsville | Powder Mill Road east of US 1 in Beltsville | 1930 | 1946 | Became part of an extended MD 212 | |
File:MD Route 433.svg MD 433 | — | — | Near Smithville | Old Denton Road north of Federalsburg | 1948 | 1958 | ||
File:MD Route 433.svg MD 433 | 1.29 | 2.08 | MD 410 in New Carrollton | MD 450 in New Carrollton | 2019 | current | ||
File:MD Route 434.svg MD 434 | — | — | US 1 in College Park | MD 201 in Berwyn Heights | 1930 | 1991 | Two sections; western section removed 1962 | |
File:MD Route 435.svg MD 435 | 1.16 | 1.87 | MD 387 / MD 450 in Annapolis | MD 450 in Annapolis | 1930 | current | ||
File:MD Route 436.svg MD 436 | 1.14 | 1.83 | MD 435 in Annapolis | Bestgate Road in Parole | 1930 | current | ||
File:MD Route 437.svg MD 437 | — | — | MD 435 in Annapolis | MD 436 (now Melvin Avenue) in Annapolis | 1930 | 1975 | Became part of relocated MD 436 | |
File:MD Route 438.svg MD 438 | — | — | MD 436 (now Annapolis Street) in Annapolis | Wardour Drive in Annapolis | 1930 | 1975 | ||
File:MD Route 439.svg MD 439 | 7.19 | 11.57 | MD 45 near Maryland Line | MD 23 in Shawsville | 1930 | current | ||
File:MD Route 440.svg MD 440 | 5.65 | 9.09 | MD 543 at Ady | US 1 near Dublin | 1930 | current | ||
File:MD Route 441.svg MD 441 | 0.50 | 0.80 | Little Elk Creek near Fair Hill | MD 280 near Fair Hill | 1938 | 1958 | ||
File:MD Route 442.svg MD 442 | 0.36 | 0.58 | MD 292 near Betterton | Rosedale Cannery Road near Betterton | 1930 | 1987 | ||
File:MD Route 443.svg MD 443 | 0.88 | 1.42 | Clark Road near Betterton | MD 292 near Betterton | 1930 | 1987 | ||
File:MD Route 444.svg MD 444 | 7.29 | 11.73 | MD 290 in Chesterville | Kentmore Park | 1930 | current | ||
File:MD Route 445.svg MD 445 | 11.96 | 19.25 | Eastern Neck National Wildlife Refuge | MD 21 in Tolchester Beach | 1930 | current | ||
File:MD Route 446.svg MD 446 | 6.03 | 9.70 | Broad Neck | MD 20 near Chestertown | 1930 | current | ||
File:MD Route 447.svg MD 447 | 10.35 | 16.66 | US 213 in Chestertown | MD 290 in Chesterville | 1930 | 1963 | ||
File:MD Route 447.svg MD 447 | 0.84 | 1.35 | MD 213 near Locust Grove | MD 444 near Locust Grove | 1969 | 1987 | ||
File:MD Route 448.svg MD 448 | 5.94 | 9.56 | Morgnec Road near Kennedyville | Turners Creek near the Sassafras River | 1930 | 1987 | ||
File:MD Route 449.svg MD 449 | 0.07 | 0.11 | MD 213 near Locust Grove | MD 444 near Locust Grove | 1969 | current | ||
File:MD Route 449.svg MD 449 | 0.53 | 0.85 | Two sections of old US 222 in Perryville | 1934 | 1958 | |||
File:MD Route 450.svg MD 450 | 0.53 | 0.85 | MD 404 near Andersontown | Delaware state line | 1930 | 1939 | Became part of MD 16 | |
File:MD Route 450.svg MD 450 | 30.42 | 48.96 | US 1 Alternate in Bladensburg | US 50 / US 301 / MD 2 near Annapolis | 1954 | current | ||
File:MD Route 451.svg MD 451 | — | — | Claiborne | MD 33 | 1930 | 1998 | ||
File:MD Route 452.svg MD 452 | 1.64 | 2.64 | US 50 near Berlin | MD 575 in Friendship | 1930 | current | ||
File:MD Route 453.svg MD 453 | — | — | MD 144 | Woodmont | 1933 | 1956 | ||
File:MD Route 454.svg MD 454 | 2.21 | 3.56 | DE 8 in Marydel | MD 302 in Templeville | 1933 | current | ||
File:MD Route 455.svg MD 455 | — | — | Waller Road | MD 353 | 1939 | 1968 | ||
File:MD Route 456.svg MD 456 | 1.22 | 1.96 | US 50 near Queenstown | MD 18 in Queenstown | 1933 | current | Contiguous sections | |
File:MD Route 457.svg MD 457 | — | — | Tuckahoe Creek | MD 404 in Denton | 1933 | 1946 | ||
File:MD Route 457.svg MD 457 | — | — | MD 313 | MD 317 in Burrsville | 1950 | 1958 | ||
File:MD Route 458.svg MD 458 | 3.12 | 5.02 | MD 5 in Hillcrest Heights | Walker Mill Road in District Heights | 1933 | current | ||
File:MD Route 459.svg MD 459 | 1.25 | 2.01 | US 50 in Cheverly | MD 201 near Cheverly | 1933 | current | ||
File:MD Route 460.svg MD 460 | 0.78 | 1.26 | Crisfield | MD 413 in Crisfield | 1933 | current | ||
File:MD Route 461.svg MD 461 | — | — | US 1 near Bel Air | 1933 | 1950 | |||
File:MD Route 462.svg MD 462 | 4.15 | 6.68 | MD 132 in Aberdeen | MD 155 near Havre de Grace | 1933 | current | ||
File:MD Route 463.svg MD 463 | — | — | MD 45 in Parkton | 1933 | 1998 | |||
File:MD Route 464.svg MD 464 | 8.10 | 13.04 | MD 17 / MD 79 in Rosemont | Ballenger Creek Pike in Point of Rocks | 1933 | current | ||
File:MD Route 465.svg MD 465 | — | — | MD 178 in Crownsville | River Road | 1933 | 1968 | ||
File:MD Route 466.svg MD 466 | — | — | Francis Avenue in Relay | US 1 in Relay | 1972 | 1978 | ||
File:MD Route 467.svg MD 467 | — | — | MD 313 in Mardela Springs | Delaware state line | 1941 | 1968 | ||
File:MD Route 468.svg MD 468 | 11.19 | 18.01 | Shady Side | MD 214 in Edgewater | 1933 | current | ||
File:MD Route 469.svg MD 469 | — | — | MD 6 in Port Tobacco | Purcell Road | 1933 | 1956 | ||
File:MD Route 470.svg MD 470 | 3.75 | 6.04 | MD 242 at Avenue | MD 242 at Dynard | 1933 | current | ||
File:MD Route 471.svg MD 471 | 0.99 | 1.59 | MD 5 in Great Mills | Great Mills | 1933 | current | Until 1956, had another section from MD 5 in Leonardtown to Fairgrounds Road | |
File:MD Route 472.svg MD 472 | 2.58 | 4.15 | MD 235 in Oakville | Sandgates | 1933 | current | ||
File:MD Route 473.svg MD 473 | 1.25 | 2.01 | MD 273 near Fair Hill | Blake Road near Fair Hill | 1933 | 1958 | ||
File:MD Route 474.svg MD 474 | — | — | Maryland, Delaware & Virginia Railroad east of Denton | Maryland, Delaware & Virginia Railroad southeast of Denton | 1933 | 1958 | ||
File:MD Route 475.svg MD 475 | — | — | MD 413 in Crisfield | Near Crisfield | 1933 | 1946 | ||
File:MD Route 475.svg MD 475 | — | — | US 50 in Salisbury | US 13 in Salisbury | 1950 | 1954 | ||
File:MD Route 475.svg MD 475 | — | — | South Street in Frederick | MD 144 in Frederick | 2001 | 2009 | ||
File:MD Route 476.svg MD 476 | — | — | MD 144 in Lisbon | north of Old Frederick Road | 1933 | 1956 | ||
File:MD Route 477.svg MD 477 | — | — | US 1 near Elkridge | US 1 | 1933 | 1983 | ||
File:MD Route 478.svg MD 478 | — | — | US 40 in Parkhead | dead end in Parkhead | 1933 | 1955 | Old US 40 | |
File:MD Route 478.svg MD 478 | 1.88 | 3.03 | MD 180 in Knoxville | Brunswick | 1968 | current | ||
File:MD Route 479.svg MD 479 | — | — | US 50 in Cambridge | Eastern Shore State Hospital in Cambridge | 1933 | 1983 | ||
File:MD Route 480.svg MD 480 | 9.08 | 14.61 | MD 404 in Hillsboro | MD 313 in Greensboro | 1933 | current | ||
File:MD Route 481.svg MD 481 | 5.13 | 8.26 | MD 309 near Queen Anne | MD 304 in Ruthsburg | 1933 | current | ||
File:MD Route 482.svg MD 482 | 5.41 | 8.71 | MD 27 in Mexico | MD 30 Business in Hampstead | 1933 | current | ||
File:MD Route 483.svg MD 483 | — | — | MD 174 in Severn | 1933 | 1946 | |||
File:MD Route 484.svg MD 484 | — | — | MD 224 in Marbury | MD 425 in Pisgah | 1933 | 1987 | Until 1957, continued east to MD 6 in Port Tobacco | |
File:MD Route 485.svg MD 485 | — | — | US 50 (now Ocean Gateway/old MD 731) in Vienna | MD 487 in Vienna | 1933 | 1955 | now Middle Street | |
File:MD Route 485.svg MD 485 | 0.65 | 1.05 | Loop from MD 404 near Hillsboro | — | — | Longest section | ||
File:MD Route 486.svg MD 486 | — | — | MD 331 (now Rhodesdale Vienna Road) in Vienna | US 50 (now Ocean Gateway/old MD 731) in Vienna | 1933 | 1955 | Became part of rerouted MD 331; the old route became the turn lane | |
File:MD Route 487.svg MD 487 | — | — | US 50 (now Ocean Gateway/old MD 731) in Vienna | MD 485 in Vienna | 1933 | 1955 | now Race Street | |
File:MD Route 488.svg MD 488 | 6.01 | 9.67 | MD 6 in La Plata | MD 5 in Bryantown | 1933 | current | ||
File:MD Route 489.svg MD 489 | — | — | MD 314 in Whiteleysburg | Delaware state line | 1933 | 1950 | Now part of MD 314; the old route of MD 314 via 2 State road was decommissioned | |
File:MD Route 489.svg MD 489 | 1.27 | 2.04 | MD 5 at Park Hall | MD 235 near Park Hall | 1956 | current | ||
File:MD Route 490.svg MD 490 | 0.31 | 0.50 | Commerce Street in Havre de Grace | MD 7 in Havre de Grace | 1933 | current | ||
File:MD Route 491.svg MD 491 | — | — | MD 6 in Ironsides | MD 6 near Ironsides | 1933 | 1956 | Now part of MD 425 | |
File:MD Route 491.svg MD 491 | 6.78 | 10.91 | MD 64 in Smithsburg | MD 550 in Fort Ritchie | 1957 | current | ||
File:MD Route 492.svg MD 492 | — | — | District of Columbia boundary | MD 214 near Capitol Heights | 1933 | 1954 | ||
File:MD Route 493.svg MD 493 | — | — | creek crossing due south of Martin Plaza Shopping Plaza | MD 150 in Middle River | 1933 | 1941 | Decommissioned when MD 700 was built | |
File:MD Route 494.svg MD 494 | 6.83 | 10.99 | PA 75 near Fairview | MD 63 at Cearfoss | 1933 | current | ||
File:MD Route 495.svg MD 495 | 23.02 | 37.05 | MD 135 at Altamont | US 40 Alternate in Grantsville | 1933 | current | ||
File:MD Route 496.svg MD 496 | 7.23 | 11.64 | MD 97 near Westminster | MD 30 near Manchester | 1933 | current | ||
File:MD Route 497.svg MD 497 | 2.68 | 4.31 | MD 2 / MD 4 in Lusby | Cove Point | 1933 | current | ||
File:MD Route 498.svg MD 498 | — | — | MD 249 in Piney Point | Piney Point Light | 1933 | 1981 | ||
File:MD Route 499.svg MD 499 | — | — | MD 238 in Maddox | Hurry Road | 1933 | 1956 | ||
File:MD Route 500.svg MD 500 | 2.22 | 3.57 | Michigan Avenue in Washington, D.C. | MD 410 in Hyattsville | 1933 | current | ||
File:MD Route 501.svg MD 501 | 1.68 | 2.70 | MD 212 in Chillum | MD 500 in Mount Rainier | 1933 | current | ||
File:MD Route 502.svg MD 502 | — | — | Virginia state line | MD 366 in Stockton | 1946 | 1960 | ||
File:MD Route 503.svg MD 503 | — | — | Olivet | MD 2 (now MD 765) near Lusby | 1933 | 1957 | ||
File:MD Route 504.svg MD 504 | — | — | near the confluence of Back Creek and St. John Creek | MD 2 (now MD 765) near Lusby | 1933 | 1957 | ||
File:MD Route 505.svg MD 505 | — | — | near the confluence of Hellen Creek and the Patuxent River | MD 2 near Lusby | 1933 | 1957 | ||
File:MD Route 506.svg MD 506 | 3.79 | 6.10 | MD 508 at Bowens | MD 2 / MD 4 near Port Republic | 1933 | current | ||
File:MD Route 507.svg MD 507 | — | — | Barstow Road & Leitches Wharf Road | MD 2 near Lusby | 1933 | 1957 | ||
File:MD Route 508.svg MD 508 | 1.20 | 1.93 | MD 506 at Bowens | MD 231 near Barstow | 1933 | current | ||
File:MD Route 509.svg MD 509 | 1.14 | 1.83 | MD 2 / MD 4 in Port Republic | Kenwood Beach | 1933 | current | ||
File:MD Route 510.svg MD 510 | — | — | Mill Branch Road | MD 262 in Sunderland | 1933 | 1957 | ||
File:MD Route 511.svg MD 511 | — | — | Patuxent River | MD 264 near Mutual | 1933 | 1957 | ||
File:MD Route 512.svg MD 512 | — | — | Patuxent River | MD 264 near Mutual | 1933 | 1957 | ||
File:MD Route 513.svg MD 513 | — | — | Piney Branch Road in Washington, D.C. | MD 320 in Silver Spring | 1933 | 1955 | ||
File:MD Route 513.svg MD 513 | 1.77 | 2.85 | Jackson Road near Fruitland | US 13 Business in Fruitland | 1987 | current | ||
File:MD Route 514.svg MD 514 | — | — | Sligo Creek | MD 320/MD 513 in Silver Spring | 1933 | 1939 | now Park Valley Road; unlabeled on the 1933 and 1935 maps | |
File:MD Route 514.svg MD 514 | 4.89 | 7.87 | MD 20 in Chestertown | MD 298 at Melitota | 1950 | current | ||
File:MD Route 515.svg MD 515 | — | — | MD 384 in Silver Spring | MD 391 in Silver Spring | 1933 | 1960 | ||
File:MD Route 516.svg MD 516 | — | — | US 29 | MD 193 in Silver Spring | 1933 | 1999 | ||
File:MD Route 517.svg MD 517 | — | — | MD 24 in Five Forks | MD 23 in Norrisville | 1933 | 1956 | ||
File:MD Route 518.svg MD 518 | 0.06 | 0.097 | Section of Main Street in Queen Anne | 1933 | current | |||
File:MD Route 519.svg MD 519 | — | — | Worthington Road near Reisterstown | Dover Road near Reisterstown | 1933 | 1979 | ||
File:MD Route 520.svg MD 520 | 2.61 | 4.20 | Whites Neck Creek | MD 239 near Bushwood | 1933 | current | ||
File:MD Route 521.svg MD 521 | 4.43 | 7.13 | Lowery Road near Huntingtown | MD 524 in Huntingtown | 1933 | current | ||
File:MD Route 523.svg MD 523 | — | — | Patuxent River | MD 416 (now MD 4) in Chaneyville | 1933 | 1957 | ||
File:MD Route 523.svg MD 523 | — | — | Pennsylvania State line | Resley Street in Hancock | 1966 | 1970 | ||
File:MD Route 524.svg MD 524 | — | — | Mount Harmony Road (previously MD 260) | MD 2 (now MD 778) near Owings | 1933 | 1957 | ||
File:MD Route 524.svg MD 524 | 0.76 | 1.22 | Loop from MD 2 / MD 4 in Huntingtown | 1969 | current | |||
File:MD Route 525.svg MD 525 | — | — | Patuxent River | MD 416 (now MD 4) in Dunkirk | 1933 | 1957 | ||
File:MD Route 526.svg MD 526 | — | — | MD 545 in Elkton | MD 280 in Elkton | 1933 | 1955 | Elkton Blvd; became part of MD 545 | |
File:MD Route 526.svg MD 526 | — | — | Main Street in Westminster | MD 97,MD 140 in Westminster | 1954 | 1999 | ||
File:MD Route 526.svg MD 526 | 0.13 | 0.21 | Spur from MD 140 in Reisterstown | 2014 | current | |||
File:MD Route 527.svg MD 527 | — | — | US 1 in Elkridge | Dead end in Elkridge | 1933 | 1957 | ||
File:MD Route 528.svg MD 528 | 9.04 | 14.55 | MD 378 in Ocean City | DE 1 in Ocean City | 1933 | current | ||
2.57 | 4.14 | MD 675 in Princess Anne | US 13 near Eden | 1933 | current | Formerly continued north through Allen to Salisbury | ||
File:MD Route 530.svg MD 530 | 0.14 | 0.23 | High Street in Chestertown | US 213 in Chestertown | 1933 | 1960 | ||
File:MD Route 531.svg MD 531 | — | — | US 1 in Jessup | MD 103 near Ellicott City | 1933 | 1946 | Became part of MD 175 (now MD 108 and MD 104) | |
File:MD Route 531.svg MD 531 | — | — | Galestown | MD 392 in Reliance | 1946 | 1959 | ||
File:MD Route 532.svg MD 532 | — | — | MD 27 (now MD 808) in Mount Airy | US 40 in Lisbon | 1933 | 1956 | ||
File:MD Route 533.svg MD 533 | 1.25 | 2.01 | Cobb Island | MD 3 (now MD 257) near Rock Point | 1933 | 1958 | Renumbered MD 254 | |
File:MD Route 534.svg MD 534 | — | — | MD 4 in Forestville | MD 221 (now Ritchie-Marlboro Road) near Largo | 1933 | 1955 | ||
File:MD Route 535.svg MD 535 | — | — | MD 14 near Brookview | 1933 | 1955 | |||
File:MD Route 535.svg MD 535 | 0.16 | 0.26 | MD 5 in Temple Hills | Auth Road in Temple Hills | 2001 | current | ||
File:MD Route 536.svg MD 536 | — | — | MD 6 | south of Mill Swamp Road near Welcome | 1933 | 1956 | ||
— | — | MD 135 in Swanton | Savage River State Forest | 1933 | 1946 | Became part of MD 495 | ||
0.49 | 0.79 | MD 213 in Chesapeake City | Chesapeake and Delaware Canal | 1949 | current | Longest section | ||
0.71 | 1.14 | Loop from MD 213 near Galena | 1951 | 1987 | ||||
File:MD Route 539.svg MD 539 | — | — | US 29 in Columbia | MD 175 in Jonestown | 1956 | 1959 | Became part of MD 108 | |
File:MD Route 540.svg MD 540 | — | — | MD 410 in Takoma Park | MD 513 in Takoma Park | 1933 | 1955 | Chestnut Avenue | |
File:MD Route 541.svg MD 541 | — | — | MD 349 | Tyaskin | 1933 | 1956 | ||
File:MD Route 542.svg MD 542 | 6.33 | 10.19 | MD 147 in Baltimore | Cromwell Bridge Road in Parkville | 1933 | current | ||
File:MD Route 543.svg MD 543 | 19.08 | 30.71 | US 40 in Riverside | MD 165 in Pylesville | 1933 | current | ||
File:MD Route 544.svg MD 544 | 9.48 | 15.26 | MD 213 in Kingstown | MD 313 near Unicorn | 1933 | current | Contiguous sections | |
File:MD Route 545.svg MD 545 | 5.92 | 9.53 | MD 213 in Elkton | Warburton Road in Cedar Hill | 1933 | current | ||
File:MD Route 546.svg MD 546 | 3.61 | 5.81 | Beall School Road in Finzel | PA QR 2010 near Finzel | 1933 | current | ||
File:MD Route 547.svg MD 547 | 1.80 | 2.90 | MD 355 in North Bethesda | MD 185 in Kensington | 1933 | current | ||
File:MD Route 548.svg MD 548 | — | — | MD 529 (now Allen Road) | south port of the Upper Ferry | 1933 | 1956 | ||
File:MD Route 549.svg MD 549 | — | — | MD 224 (now Livingston Road) | Fort Washington Park | 1933 | 1956 | ||
File:MD Route 550.svg MD 550 | 24.43 | 39.32 | MD 26 in Libertytown | Pen Mar | 1933 | current | ||
File:MD Route 551.svg MD 551 | — | — | MD 343 (now High Street) in Cambridge | MD 16 (now MD 341) | 1946 | 1956 | Replaced by relocated MD 343 | |
File:MD Route 552.svg MD 552 | 2.20 | 3.54 | Dominion | US 50 / US 301 in Chester | 1933 | current | ||
File:MD Route 553.svg MD 553 | 0.28 | 0.45 | MD 2 in Edgewater | South River | 1933 | current | Longest section | |
File:MD Route 554.svg MD 554 | — | — | MD 170 (now High Street) in Severn | Fort Meade | 1933 | 1983 | Replaced by MD 174 | |
File:MD Route 555.svg MD 555 | — | — | MD 263 in Plum Point | 4 miles south | 1933 | 1957 | ||
File:MD Route 556.svg MD 556 | — | — | MD 450 near Woodmore | MD 202 | 1933 | 1989 | Replaced by MD 193 | |
File:MD Route 557.svg MD 557 | — | — | MD 355 in Gaithersburg | MD 114 in Gaithersburg | 1933 | 1973 | ||
File:MD Route 558.svg MD 558 | — | — | US 301 in Bel Alton | MD 6 in Newtown | 1933 | 1956 | ||
File:MD Route 559.svg MD 559 | — | — | Westminster city limits | Tannery | 1933 | 1956 | ||
File:MD Route 560.svg MD 560 | 9.32 | 15.00 | US 50 at Gorman | MD 135 in Mountain Lake Park | 1933 | current | ||
File:MD Route 561.svg MD 561 | 2.48 | 3.99 | MD 213 at Hassengers Corner | MD 298 in Lynch | 1933 | current | ||
File:MD Route 562.svg MD 562 | 1.39 | 2.24 | Markoe Road near Monkton | MD 138 near Monkton | 1933 | current | ||
File:MD Route 563.svg MD 563 | — | — | MD 6 in Riverside | MD 224 (now MD 344) in Chicamuxen | 1933 | 1956 | ||
File:MD Route 564.svg MD 564 | 6.73 | 10.83 | MD 450 in Lanham | Bowie | 1934 | current | ||
File:MD Route 565.svg MD 565 | 5.18 | 8.34 | Trappe | US 50 near Easton | 1941 | current | Longest section | |
File:MD Route 566.svg MD 566 | 1.19 | 1.92 | MD 292 in Still Pond | MD 298 near Still Pond | 1946 | current | ||
File:MD Route 567.svg MD 567 | — | — | Cromwell Valley Park near Towson | Cub Hill Road near Carney | 1934 | 1998 | ||
File:MD Route 568.svg MD 568 | 0.41 | 0.66 | MD 367 in Bishopville | Bishopville Road at the Delaware state line near Bishopville | 1934 | current | ||
File:MD Route 569.svg MD 569 | — | — | Lemmon Road near Westminster | Beggs Road near Westminster | 1934 | 1956 | ||
File:MD Route 570.svg MD 570 | — | — | MD 32 near Fenby | Obrecht Road near Eldersburg | 1934 | 1954 | Became part of MD 97 | |
File:MD Route 570.svg MD 570 | 1.95 | 3.14 | I-70 / I-695 in Woodlawn | MD 122 / Park and ride in Baltimore | 2020 | current | Former I-70 | |
File:MD Route 571.svg MD 571 | — | — | MD 32 (now MD 140) | Pennsylvania state line in Emmitsburg | 1934 | 1950 | ||
File:MD Route 572.svg MD 572 | — | — | MD 67 in Gapland | Washington–Frederick county line in Crampton's Gap | 1934 | 1956 | ||
File:MD Route 573.svg MD 573 | — | — | MD 26 in Eldersburg | MD 570 (now MD 97) northwest of Eldersburg | 1934 | 1954 | ||
File:MD Route 574.svg MD 574 | — | — | MD 235 (now MD 944) near Hollywood | near Scotch Neck Road near Hollywood | 1934 | 1983 | ||
File:MD Route 575.svg MD 575 | — | — | MD 2 (now MD 944) near Huntingtown | MD 261 near Willows | 1934 | 1957 | ||
File:MD Route 575.svg MD 575 | 2.70 | 4.35 | US 113 near Berlin | MD 589 near Showell | 2000 | current | Longest section | |
File:MD Route 576.svg MD 576 | — | — | Tulls Corner Road | MD 371 in Pocomoke City | 1934 | 1954 | ||
File:MD Route 577.svg MD 577 | 3.70 | 5.95 | MD 392 in Reliance | MD 313 near Federalsburg | 1934 | current | ||
File:MD Route 578.svg MD 578 | 4.24 | 6.82 | MD 331 in Bethlehem | MD 16 at Harmony | 1934 | current | ||
File:MD Route 579.svg MD 579 | 7.84 | 12.62 | Neavitt | MD 33 near Saint Michaels | 1934 | current | ||
File:MD Route 580.svg MD 580 | — | — | US 13 | MD 364 in West Pocomoke | 1946 | 1950 | ||
File:MD Route 581.svg MD 581 | — | — | Keysville | MD 71 (now MD 194) south of Keysville | 1934 | 1954 | ||
File:MD Route 582.svg MD 582 | — | — | Brookeville Road near Olney | Gregg Road in Montgomery County | 1934 | 1956 | ||
File:MD Route 583.svg MD 583 | — | — | Hipsley Mill Road | Daisy Road near Florence | 1934 | 1950 | ||
File:MD Route 584.svg MD 584 | 0.38 | 0.61 | Loop from MD 5 in St. Mary's City | 1934 | current | |||
File:MD Route 585.svg MD 585 | — | — | MD 12 | MD 390 near Salisbury | 1934 | 1956 | ||
File:MD Route 586.svg MD 586 | 5.78 | 9.30 | MD 28 / MD 911 in Rockville | MD 97 in Wheaton | 1934 | current | ||
File:MD Route 587.svg MD 587 | 1.14 | 1.83 | Dogwood Drive in Middle River | MD 150 in Middle River | 1934 | current | ||
File:MD Route 588.svg MD 588 | 1.94 | 3.12 | MD 7 in Rosedale | Overlea | 1934 | current | ||
File:MD Route 589.svg MD 589 | 4.65 | 7.48 | US 50 near Ocean Pines | US 113 / MD 575 near Showell | 1934 | current | ||
File:MD Route 590.svg MD 590 | — | — | US 1 near Kalmia | US 1 near Dublin | 1935 | 1953 | ||
File:MD Route 591.svg MD 591 | 0.80 | 1.29 | Octoraro Creek | US 1 near Conowingo | 1934 | current | Longest section | |
File:MD Route 592.svg MD 592 | 0.23 | 0.37 | MD 273 near Rising Sun | US 1 near Rising Sun | 1934 | 1958 | ||
File:MD Route 593.svg MD 593 | — | — | Sligo Creek Parkway in Silver Spring | MD 193 in Silver Spring | 1934 | 1958 | ||
File:MD Route 594.svg MD 594 | — | — | MD 391 (now Dale Drive) in Silver Spring | MD 194 (now Flower Avenue) in Silver Spring | 1934 | 1958 | ||
File:MD Route 594.svg MD 594 | 1.40 | 2.25 | US 29 in Silver Spring | Flower Avenue in Silver Spring | 2016 | current | ||
File:MD Route 595.svg MD 595 | — | — | MD 391 (now Dale Drive) in Silver Spring | Queen Annes Drive in Silver Spring | 1934 | 1958 | ||
File:MD Route 596.svg MD 596 | — | — | MD 391 (now Dale Drive) in Silver Spring | Woodside Parkway in Silver Spring | 1934 | 1958 | ||
File:MD Route 597.svg MD 597 | — | — | Dallas Avenue in Silver Spring | US 29 in Silver Spring | 1934 | 1946 | Replaced by MD 192 | |
File:MD Route 597.svg MD 597 | — | — | loop off of US 1 near Harwood Park | 1946 | 1956 | |||
File:MD Route 598.svg MD 598 | — | — | US 13 in Westover | US 13 (now MD 675) in Princess Anne | 1934 | 1961 | ||
File:MD Route 599.svg MD 599 | — | — | MD 700 (now Orems Road) in Middle River | MD 150 in Middle River | 1934 | 1975 | Railroad crossing connecting sections eliminated | |
File:MD Route 600.svg MD 600 | — | — | MD 150 in Middle River | MD 599 in Middle River | 1934 | 1975 | main section removed 1950 | |
File:MD Route 601.svg MD 601 | — | — | MD 599 in Middle River | MD 600 in Middle River | 1934 | 1975 | ||
File:MD Route 607.svg MD 607 | 1.54 | 2.48 | Woods Road near Jacobsville | MD 173 in Jacobsville | — | — | ||
File:MD Route 610.svg MD 610 | 6.53 | 10.51 | Bell Road near Whaleyville | US 113 near Bishop | — | — | ||
File:MD Route 611.svg MD 611 | 8.51 | 13.70 | Assateague State Park | US 50 in West Ocean City | — | — | ||
File:MD Route 614.svg MD 614 | 1.97 | 3.17 | MacArthur Boulevard in Glen Echo | MD 191 in Bethesda | — | — | ||
File:MD Route 615.svg MD 615 | 4.35 | 7.00 | I-70 / US 40 near Hancock | Heavenly Acres Ridge Road at the Pennsylvania state line | — | — | ||
File:MD Route 617.svg MD 617 | 0.35 | 0.56 | Beauchamp Branch Road near Williston | MD 16 in Williston | — | — | ||
File:MD Route 619.svg MD 619 | 1.09 | 1.75 | 5th Avenue in Denton | MD 313 / MD 404 in Denton | — | — | ||
File:MD Route 623.svg MD 623 | 7.26 | 11.68 | MD 161 in Darlington | PA QR 2043 near Delta, PA | — | — | ||
File:MD Route 624.svg MD 624 | 2.87 | 4.62 | MD 165 in Pylesville | PA QR 2080 near Graceton | — | — | ||
File:MD Route 625.svg MD 625 | 1.36 | 2.19 | MD 5 in Hughesville | MD 5 in Hughesville | — | — | ||
File:MD Route 627.svg MD 627 | 2.48 | 3.99 | Crab Island Road in Oriole | MD 363 near Oriole | — | — | ||
File:MD Route 631.svg MD 631 | 0.35 | 0.56 | Spur from Brandywine Road near Brandywine | — | — | |||
File:MD Route 632.svg MD 632 | 6.71 | 10.80 | MD 63 in Downsville | Wilson Boulevard in Hagerstown | — | — | ||
File:MD Route 636.svg MD 636 | 0.28 | 0.45 | MD 53 in Cresaptown | US 220 in Cresaptown | — | — | ||
File:MD Route 637.svg MD 637 | 0.61 | 0.98 | Naylor Road in Washington, D.C. | MD 5 in Hillcrest Heights | — | — | ||
File:MD Route 638.svg MD 638 | 2.34 | 3.77 | MD 743 in Eckhart Mines | MD 36 near Mount Savage | — | — | ||
File:MD Route 639.svg MD 639 | 2.79 | 4.49 | MD 51 in Evitts Creek | US 40 Alternate in Cumberland | — | — | ||
File:MD Route 640.svg MD 640 | 0.58 | 0.93 | Eastern Correctional Institution | US 13 near Westover | — | — | ||
File:MD Route 642.svg MD 642 | 0.08 | 0.13 | Spur from MD 173 in Orchard Beach | — | — | |||
File:MD Route 644.svg MD 644 | 0.03 | 0.048 | US 1 in Arbutus | Sulphur Spring Road in Arbutus | — | — | Longest section | |
File:MD Route 645.svg MD 645 | 0.12 | 0.19 | Spur from Railroad Avenue in Harmans | — | — | Longest section | ||
File:MD Route 646.svg MD 646 | 3.31 | 5.33 | MD 543 at Ady | MD 136 near Whiteford | — | — | ||
File:MD Route 648.svg MD 648 | 21.52 | 34.63 | US 50/US 301 in Arnold | MD 295 in Baltimore | — | — | This highway is split into multiple sections along Maryland Route 2, Among all the old remnants of Baltimore-Annapolis Boulevard. See historical page for more details. | |
File:MD Route 650.svg MD 650 | 25.89 | 41.67 | New Hampshire Avenue in Washington, D.C. | MD 108 near Damascus | — | — | ||
File:MD Route 652.svg MD 652 | 0.69 | 1.11 | Spur from MD 176 near Harmans | — | — | |||
File:MD Route 655.svg MD 655 | 1.86 | 2.99 | MD 28 at Norbeck | Carrolton Road near Norbeck | — | — | ||
File:MD Route 656.svg MD 656 | 0.70 | 1.13 | MD 18 in Queenstown | MD 456 in Queenstown | — | — | ||
File:MD Route 658.svg MD 658 | 0.84 | 1.35 | MD 53 in La Vale | US 40 Alternate in La Vale | — | — | ||
File:MD Route 660.svg MD 660 | 0.05 | 0.080 | MD 355 in Rockville | MD 28 in Rockville | — | — | ||
File:MD Route 661.svg MD 661 | 2.22 | 3.57 | MD 289 near Pomona | Chester River | 1939 | 1994 | ||
File:MD Route 662.svg MD 662 | 6.10 | 9.82 | Easton | US 50 near Longwoods | — | — | Longest section | |
File:MD Route 662.svg MD 662 | 3.13 | 5.04 | Railroad crossing in Kennedyville | Turners Creek near the Sassafras River | 1939 | 1946 | ||
File:MD Route 664.svg MD 664 | 1.65 | 2.66 | MD 289 near Chestertown | Chester River | 1939 | 1960 | ||
File:MD Route 665.svg MD 665 | 2.68 | 4.31 | US 50 / US 301 in Parole | Forest Drive in Annapolis | — | — | ||
File:MD Route 667.svg MD 667 | 17.61 | 28.34 | Crisfield | US 13 in West Pocomoke | — | — | ||
File:MD Route 668.svg MD 668 | 0.14 | 0.23 | Spur from Harvey Yingling Road near Manchester | — | — | |||
File:MD Route 669.svg MD 669 | 1.69 | 2.72 | US 40 Alternate in Grantsville | PA 669 near Grantsville | — | — | ||
File:MD Route 670.svg MD 670 | 1.48 | 2.38 | MD 347 in Hebron | US 50 near Hebron | — | — | ||
File:MD Route 672.svg MD 672 | 0.19 | 0.31 | Spur from MD 648 near Annapolis | — | — | |||
0.53 | 0.85 | MD 413 in Westover | US 13 near Westover | — | — | |||
File:MD Route 674.svg MD 674 | 0.25 | 0.40 | Rock Hall | MD 20 in Rock Hall | 1940 | current | ||
File:MD Route 675.svg MD 675 | 3.39 | 5.46 | US 13 near Princess Anne | US 13 near Princess Anne | — | — | Longest section | |
File:MD Route 685.svg MD 685 | 0.16 | 0.26 | Loop from MD 213 at Hack Point | 1953 | 1979 | Longest section | ||
File:MD Route 690.svg MD 690 | 1.46 | 2.35 | MD 273 near Rising Sun | Sylmar Road at the Pennsylvania state line | 1957 | 1958 | ||
File:MD Route 694.svg MD 694 | 0.10 | 0.16 | Spur from MD 212 in Beltsville | — | — | |||
File:MD Route 697.svg MD 697 | 0.25 | 0.40 | MD 274 at Bay View | MD 699 at Bay View | 1969 | 1979 | ||
File:MD Route 698.svg MD 698 | 0.11 | 0.18 | Dead end at railroad | High Street in Chestertown | 1940 | 1985 | ||
File:MD Route 699.svg MD 699 | 0.99 | 1.59 | Loop from MD 272 at Bay View | 1941 | 1979 | Longest section | ||
File:MD Route 700.svg MD 700 | 1.97 | 3.17 | US 40 near Rosedale | MD 150 in Middle River | — | — | ||
File:MD Route 701.svg MD 701 | 0.14 | 0.23 | MD 291 near Millington | US 301 near Millington | 1988 | current | Longest section | |
File:MD Route 702.svg MD 702 | 4.17 | 6.71 | I-695 in Essex | Back River Neck Road near Essex | — | — | ||
File:MD Route 703.svg MD 703 | 0.08 | 0.13 | MD 366 near Klej Grange | — | — | |||
File:MD Route 704.svg MD 704 | 6.53 | 10.51 | 63rd Street in Washington, D.C. | MD 450 in Lanham | — | — | ||
File:MD Route 707.svg MD 707 | 1.44 | 2.32 | Near Berlin | MD 589 near Ocean Pines | — | — | Longest section | |
File:MD Route 710.svg MD 710 | 2.83 | 4.55 | MD 2 in Glen Burnie | MD 173 near Brooklyn Park | — | — | ||
File:MD Route 711.svg MD 711 | 0.51 | 0.82 | MD 2 in Glen Burnie | Arundel Corporation Road in Glen Burnie | — | — | ||
File:MD Route 711.svg MD 711 | 0.75 | 1.21 | MD 545 near Elkton | MD 280 near Elkton | 1943 | 1958 | ||
1.11 | 1.79 | MD 235 in Lexington Park | NAS Patuxent River | — | — | |||
File:MD Route 713.svg MD 713 | 3.01 | 4.84 | Fort Meade | MD 176 in Hanover | — | — | ||
File:MD Route 714.svg MD 714 | 0.20 | 0.32 | Rivers Edge West near Millington | MD 291 near Millington | 1957 | 1987 | ||
File:MD Route 715.svg MD 715 | 1.06 | 1.71 | US 40 in Aberdeen | Aberdeen Proving Ground | — | — | ||
File:MD Route 717.svg MD 717 | 0.33 | 0.53 | MD 4 in Upper Marlboro | MD 725 in Upper Marlboro | — | — | ||
File:MD Route 723.svg MD 723 | 0.18 | 0.29 | Spur from MD 175 in Jessup | — | — | |||
1.86 | 2.99 | Brown Station Road in Upper Marlboro | US 301 near Upper Marlboro | — | — | |||
0.28 | 0.45 | Hunt Club Road near Upper Marlboro | Marlboro Pike near Upper Marlboro | — | — | |||
0.12 | 0.19 | MD 268 in Elkton | Amtrak's Northeast Corridor | 1949 | current | Longest section | ||
0.38 | 0.61 | Spur from US 50 near Mardela Springs | — | — | Longest section | |||
0.82 | 1.32 | Brock Bridge Road in Annapolis Junction | MD 32 in Annapolis Junction | — | — | Longest section | ||
0.14 | 0.23 | Spur from US 40 Alternate near Grantsville | — | — | Longest section | |||
0.06 | 0.097 | Virginia Avenue in Hancock | Methodist Street in Hancock | — | — | |||
1.27 | 2.04 | I-68 / US 40 near Midlothian | Park Avenue in Frostburg | — | — | |||
0.16 | 0.26 | Old alignment of US 40 in Washington County | 2019 | current | ||||
0.29 | 0.47 | Service road parallel to US 40 in Aberdeen | 2015 | current | ||||
0.06 | 0.097 | Spur from US 40 Alternate near Benevola | — | — | ||||
0.93 | 1.50 | MD 42 in Friendsville | MD 42 / I-68 near Friendsville | — | — | |||
1.00 | 1.61 | MD 36 in Frostburg | US 40 Alternate in Eckhart Mines | — | — | |||
0.13 | 0.21 | Spur from MD 25 near Towson | — | — | ||||
0.87 | 1.40 | Loop from US 50 / MD 16 near Cambridge | — | — | ||||
0.15 | 0.24 | Spur from MD 231 near Barstow | — | 2017 | ||||
1.79 | 2.88 | Aberdeen Proving Ground | US 40 in Edgewood | — | — | |||
1.17 | 1.88 | US 13 in Pocomoke City | US 113 near Pocomoke City | — | — | |||
1.02 | 1.64 | Stoney Run Road in Hanover | Ridge Road in Hanover | — | — | |||
0.21 | 0.34 | Spur from MD 18 in Stevensville | — | — | ||||
4.65 | 7.48 | Drum Point | MD 2 / MD 4 in Lusby | — | — | |||
0.23 | 0.37 | Loop from MD 263 near Parran | — | — | ||||
0.53 | 0.85 | MD 162 in Linthicum | MD 170 in Linthicum | — | — | |||
0.28 | 0.45 | MD 155 in Havre de Grace | Juniata Street in Havre De Grace | — | — | |||
0.09 | 0.14 | Pinewood Terrace near Parran | MD 261 near Parran | — | — | Longest section | ||
5.91 | 9.51 | Dowell Road near Solomons | MD 2 / MD 4 near Lusby | — | — | Longest section | ||
0.68 | 1.09 | MD 402 in Dares Beach | Chesapeake Avenue in Dares Beach | — | — | |||
1.06 | 1.71 | MD 201 near Bladensburg | MD 201 in Bladensburg | — | — | Longest section | ||
0.77 | 1.24 | MD 312 / MD 480 near Ridgely | MD 312 in Ridgely | — | — | |||
2.12 | 3.41 | MD 2 in Owings | MD 261 in Friendship | — | — | |||
0.15 | 0.24 | Spur from MD 174 in Glen Burnie | — | — | Longest section | |||
1.01 | 1.63 | US 40 in Elkton | MD 281 near Elkton | 1984 | current | |||
0.23 | 0.37 | MD 436 in Parole | Riverview Court in Parole | — | — | |||
0.24 | 0.39 | Spur from MD 436 in Parole | — | — | ||||
0.29 | 0.47 | Spur from MD 784 in Parole | — | — | ||||
0.20 | 0.32 | MD 195 in Takoma Park | MD 320 | 1956 | 2012 | ended at MD 516 before 1999. | ||
0.20 | 0.32 | MD 387 in Annapolis | Forest Drive in Annapolis | — | — | |||
2.75 | 4.43 | MD 4 in Bristol | MD 408 at Waysons Corner | — | — | |||
0.07 | 0.11 | Cambridge Creek Bridge in Cambridge | — | — | ||||
0.47 | 0.76 | I-795 / MD 140 in Reisterstown | MD 30 / MD 128 in Reisterstown | — | — | |||
0.29 | 0.47 | Loop from MD 258 near Tracys Landing | — | — | Longest section | |||
0.27 | 0.43 | State Circle around the Maryland State House in Annapolis | — | — | ||||
0.34 | 0.55 | Sherwood Forest Road near Crownsville | MD 178 near Crownsville | — | — | |||
1.57 | 2.53 | MD 75 near Linwood | MD 75 near New Windsor | — | — | Longest section | ||
1.05 | 1.69 | MD 313 near Galena | MD 290 / MD 313 near Galena | 1957 | 1987 | |||
1.01 | 1.63 | MD 8 near Normans | MD 8 near Matapeake | — | — | |||
1.53 | 2.46 | MD 299 near Warwick | Delaware state line near Warwick | 1955 | 1979 | Two sections | ||
0.79 | 1.27 | Loop from MD 64 in Chewsville | — | — | ||||
0.15 | 0.24 | Spur from Rocky Forge Road near Leitersburg | — | — | ||||
3.04 | 4.89 | US 15 near Catoctin Furnace | Thurmont | — | — | Longest section | ||
3.52 | 5.66 | Cumberland | US 220 near Dickens | — | — | |||
2.34 | 3.77 | Ridgeville Boulevard in Mount Airy | MD 27 near Mount Airy | — | — | |||
0.91 | 1.46 | Loop from MD 273 at Calvert | 1958 | 1979 | ||||
0.69 | 1.11 | MD 210 in Accokeek | Manning Road in Accokeek | — | — | Longest section | ||
0.19 | 0.31 | South town limit of Rising Sun | MD 273 in Rising Sun | 1958 | 1979 | |||
0.19 | 0.31 | Loop from MD 213 at Singerly | 1958 | 1982 | Longest section | |||
0.12 | 0.19 | MD 313 in Sharptown | State Street in Sharptown | — | — | |||
2.09 | 3.36 | Dead end near Woodlawn | MD 273 in Harrisville | 1963 | 1979 | Longest section | ||
0.29 | 0.47 | Monocacy River | Penterra Manor Lane near Creagerstown | — | 2016 | |||
0.72 | 1.16 | Loop from MD 349 near Salisbury | — | — | ||||
— | — | Loop from MD 16 near Madison | — | 1970 | ||||
0.52 | 0.84 | MD 318 near Linchester | Hunting Creek | — | — | Longest section | ||
2.62 | 4.22 | US 113 in Berlin | US 113 near Berlin | — | — | |||
0.19 | 0.31 | Loop from MD 331 in Reids Grove | — | — | ||||
0.13 | 0.21 | Spur from MD 313 near Goldsboro | — | — | ||||
0.40 | 0.64 | Loop from MD 454 in Marydel | — | — | ||||
0.85 | 1.37 | US 13 in Princess Anne | University of Maryland, Eastern Shore | — | — | |||
0.65 | 1.05 | Spur north from MD 803 near Warwick | 1955 | 1979 | ||||
0.61 | 0.98 | MD 316 near Elkton | MD 279 near Elkton | 1962 | 1979 | |||
1.06 | 1.71 | MD 222 in Perryville | MD 222 / MD 275 near Perryville | 1952 | current | |||
0.94 | 1.51 | MD 135 near Oakland | MD 135 in Mountain Lake Park | — | — | Longest section | ||
0.60 | 0.97 | Parallels US 219 between a pair of dead ends near Keyser's Ridge | — | — | Longest section | |||
0.05 | 0.080 | Parallels MD 39 between a pair of dead ends near Crellin | — | — | Longest section | |||
0.13 | 0.21 | Spur from MD 42 near Friendsville | — | — | Longest section | |||
0.04 | 0.064 | Spur from US 220 near Rawlings | — | — | Longest section | |||
0.90 | 1.45 | Loop from MD 36 in Corriganville | — | — | Longest section | |||
7.67 | 12.34 | MD 140 in Taneytown | MD 140 in Westminster | — | — | |||
0.84 | 1.35 | MD 30 Business in Hampstead | MD 88 in Hampstead | — | — | |||
0.16 | 0.26 | Granny Branch Road near Price | Maryland and Delaware Railroad near Price | — | — | |||
0.77 | 1.24 | Loop from MD 18 in Stevensville | — | — | Longest section | |||
0.26 | 0.42 | Loop from MD 273 near Rising Sun | 1953 | 1958 | ||||
0.12 | 0.19 | MD 300 in Sudlersville | MD 313 in Sudlersville | — | — | |||
0.16 | 0.26 | Spur from MD 63 near Williamsport | — | — | Longest section | |||
0.29 | 0.47 | Spur from MD 64 near Cavetown | — | — | ||||
1.23 | 1.98 | MD 34 in Keedysville | MD 34 in Keedysville | — | — | |||
0.10 | 0.16 | Spur from MD 416 near Ringgold | — | — | Longest section | |||
0.14 | 0.23 | Spur from Welty Church Road near Smithsburg | — | — | ||||
0.36 | 0.58 | MD 852 in Mexico | MD 482 near Mexico | — | — | |||
1.75 | 2.82 | Winfield | MD 26 near Eldersburg | — | — | Longest section | ||
2.88 | 4.63 | MD 32 near Sykesville | MD 32 in Sykesville | — | — | |||
3.72 | 5.99 | MD 31 in New Windsor | MD 31 near Westminster | — | — | Longest section | ||
0.37 | 0.60 | Parallels MD 194 between a pair of dead ends near Taneytown | — | — | Longest section | |||
3.93 | 6.32 | Muller Road near Morgan Run NEA | MD 32 at Fenby | — | — | Longest section | ||
0.06 | 0.097 | Loop from MD 213 near Kennedyville | 1956 | current | Longest section | |||
0.10 | 0.16 | Loop from MD 298 in Lynch | 1959 | current | ||||
0.39 | 0.63 | Loop from MD 566 in Still Pond | 1959 | 1987 | ||||
1.00 | 1.61 | MD 67 in Rohrersville | MD 67 near Rohrersville | — | — | Longest section | ||
0.88 | 1.42 | MD 291 near Morgnec | Dead end east of Morgnec | 1963 | 1987 | Longest section | ||
0.20 | 0.32 | Loop from MD 5 in Charlotte Hall | — | — | ||||
0.11 | 0.18 | Loop from MD 292 near Still Pond | 1968 | current | ||||
0.07 | 0.11 | Spur from MD 236 at Budds Creek | — | — | ||||
0.20 | 0.32 | Bowmans Farm Road in Frederick | MD 144 in Frederick | — | — | |||
0.91 | 1.46 | MD 79 in Rosemont | MD 17 near Rosemont | — | — | Longest section | ||
0.33 | 0.53 | Spur from MD 180 near Petersville | — | — | ||||
0.37 | 0.60 | Spur from US 15 Business near Emmitsburg | — | 2016 | ||||
0.14 | 0.23 | Former sections of MD 75 near New London | — | — | Longest section | |||
0.37 | 0.60 | Spur from MD 75 near New Market | — | — | ||||
0.10 | 0.16 | Spur from Broadfording Road in Hagerstown | — | 2015 | ||||
0.60 | 0.97 | Loop from MD 91 near Finksburg | — | — | Longest section | |||
0.10 | 0.16 | Spur from MD 137 in Hereford | — | — | ||||
0.10 | 0.16 | MD 144 in Hancock | Limestone Road in Hancock | — | — | |||
— | — | US 29 in White Oak | MD 650 | — | 1999 | |||
0.21 | 0.34 | DE 896 near Newark, DE | PA 896 near Strickersville, PA | 1946 | current | |||
0.17 | 0.27 | Muddy Branch | Cherry Grove Drive near Gaithersburg | — | — | Longest section | ||
— | — | MD 121 in Clarksburg | Montgomery County Correctional Facility | — | 1999 | |||
0.91 | 1.46 | US 40 Scenic at Sideling Hill | I-68 / US 40 at Sideling Hill | — | — | |||
0.66 | 1.06 | Jim Bowers Road near Eldersburg | Morgan Run NEA | — | — | Longest section | ||
2.52 | 4.06 | MD 179 near Cape St. Claire | Skidmore | — | — | |||
0.80 | 1.29 | Spur from MD 424 near Davidsonville | — | — | ||||
0.59 | 0.95 | MD 144 in Hagerstown | US 40 in Hagerstown | — | — | Longest section | ||
0.21 | 0.34 | MD 355 in Rockville | MD 28 / MD 586 in Rockville | — | — | |||
0.56 | 0.90 | Loop from MD 282 near Earleville | 1967 | 1979 | Longest section | |||
0.19 | 0.31 | Spur from MD 267 in Charlestown | 1968 | 1974 | ||||
0.89 | 1.43 | Spur from MD 177 in Pasadena | — | — | Longest section | |||
0.09 | 0.14 | MD 175 in Jessup | Max Blob Park Road in Jessup | — | — | |||
0.22 | 0.35 | MD 675 in Princess Anne | University of Maryland, Eastern Shore | — | — | |||
0.97 | 1.56 | Loop from US 13 near Princess Anne | — | — | Longest section | |||
0.44 | 0.71 | Spur from US 113 near Ironshire | — | — | Longest section | |||
0.24 | 0.39 | US 1 Business / MD 22 / MD 924 in Bel Air | US 1 Business in Bel Air | — | — | |||
7.34 | 11.81 | MD 24 near Edgewood | US 1 / MD 24 near Bel Air | — | — | |||
2.49 | 4.01 | Billingsley Road in White Plains | MD 5 Business in Waldorf | — | — | |||
0.45 | 0.72 | Montrose Road through its interchange with I-270 near Rockville | — | — | Longest section | |||
0.19 | 0.31 | Loop from MD 28 at Norbeck | — | — | Longest section | |||
0.31 | 0.50 | Section of Randolph Road west from US 29 in Fairland | — | — | Longest section | |||
0.38 | 0.61 | College Parkway in Cape St. Claire | Old Cape St. Claire Road in Cape St. Claire | — | — | Longest section | ||
0.55 | 0.89 | Ten Oaks Road near Glenelg | MD 32 near Glenelg | — | — | Longest section | ||
2.99 | 4.81 | MD 36 near Barton | MD 36 near Nikep | — | — | |||
5.19 | 8.35 | Church Street in Midland | US 40 Alternate / MD 36 in Frostburg | — | — | |||
1.53 | 2.46 | MD 135 in Westernport | MD 36 near Westernport | — | — | |||
0.01 | 0.016 | Spur from MD 36 near Barton | — | — | ||||
1.48 | 2.38 | Red Run Boulevard in Owings Mills | MD 140 in Owings Mills | — | — | |||
0.06 | 0.097 | Blue Bridge across the Potomac River in Cumberland | — | — | ||||
0.59 | 0.95 | I-83 in Cockeysville | Beaver Dam Road in Cockeysville | — | — | |||
2.26 | 3.64 | Mervell Dean Road near California | MD 235 in Hollywood | — | — | |||
0.10 | 0.16 | Spur from MD 235 in Hollywood | — | — | ||||
0.61 | 0.98 | US 40 Alternate near Finzel | MD 546 in Finzel | — | — | |||
0.62 | 1.00 | Spur from US 219 near Keyser's Ridge | — | — | Longest segment | |||
0.56 | 0.90 | Spur from MD 658 in La Vale | — | — | Longest segment | |||
0.42 | 0.68 | Lottsford Vista Road near Lanham | Cleary Lane near Lanham | — | — | Longest segment | ||
0.23 | 0.37 | Loop from MD 53 near Cresaptown | — | — | ||||
0.31 | 0.50 | Hillcrest Drive at I-68 / US 40 / US 220 near Cumberland | — | — | Longest segment | |||
3.53 | 5.68 | MD 193 near Glenn Dale | Amtrak's Northeast Corridor | — | — | |||
0.20 | 0.32 | Choptank River | US 50 near Trappe | — | — | |||
0.53 | 0.85 | US 220 near Pinto | WV 956 in Rocket Center, WV | — | — | |||
0.21 | 0.34 | Spur from US 1 near Jessup | — | — | ||||
File:MD Route 963.svg MD 963 | 0.01 | 0.016 | Spur from Hill Road near Seat Pleasant | — | — | |||
0.10 | 0.16 | Spur from Red Top Road in Chillum | — | — | ||||
0.54 | 0.87 | Eastern Avenue in Washington, D.C. | Kenilworth Avenue near Cheverly | — | — | Longest section | ||
0.98 | 1.58 | MD 5 near Silver Hill | MD 414 in Silver Hill | — | — | Longest section | ||
0.05 | 0.080 | MD 193 in Greenbelt | National Guard Armory | — | — | |||
0.11 | 0.18 | MD 168 in Linthicum | I-695 in Linthicum | — | — | Longest section | ||
0.43 | 0.69 | MD 458 in Suitland | Marlboro Pike in District Heights | — | — | |||
0.06 | 0.097 | Spur from MD 459 in Cheverly | — | — | ||||
0.10 | 0.16 | Spur from MD 193 in Woodmore | — | — | ||||
0.06 | 0.097 | St. Barnabas Road in Oxon Hill | MD 414 in Oxon Hill | — | — | |||
0.31 | 0.50 | Loop from MD 3 in Bowie | — | — | Longest section | |||
0.48 | 0.77 | MD 202 in Largo | MD 214 in Largo | — | — | Longest section | ||
0.84 | 1.35 | Loop from MD 214 near Bowie | — | — | Longest section | |||
0.07 | 0.11 | Main Street between the one-way pair of US 1 in Laurel | — | — | ||||
2.05 | 3.30 | Lyons Creek | Wrighton Road in Bristol | — | — | Longest section | ||
0.11 | 0.18 | Loop from MD 108 near Ellicott City | — | — | ||||
1.02 | 1.64 | North Laurel | Old Scaggsville Road in North Laurel | 1963 | 2017 | Longest section | ||
0.22 | 0.35 | US 40 in Ellicott City | Normandy Drive in Ellicott City | — | — | |||
0.55 | 0.89 | Spur from Rogers Avenue in Ellicott City | — | — | Longest section | |||
0.06 | 0.097 | Spur from Old Columbia Road in Columbia | — | — | ||||
0.01 | 0.016 | Spur from MD 177 near Jacobsville | — | — | ||||
0.02 | 0.032 | Main Street Bridge over the Wicomico River in Salisbury | — | — | ||||
0.74 | 1.19 | Spur from Hobbs Road near Salisbury | — | — | Longest section | |||
0.04 | 0.064 | Spur from US 1 Alternate in Lansdowne | — | — | ||||
0.50 | 0.80 | MD 170 near Hanover | BWI Rail Station | — | — | |||
0.49 | 0.79 | MD 191 near Bethesda | end of state maintenance near Tammy Court | — | 1999 | |||
0.29 | 0.47 | Morris Tongue Drive near Millersville | Jabez Run near Millersville | — | — | Longest section | ||
0.08 | 0.13 | Spur from Star Point Lane in Burtonsville | — | — | ||||
0.24 | 0.39 | Newport Road & Stewart Avenue | cul-de-sac | 2001 | 2002 | |||
References
- ^ "Interstate 70 West - Washington County". AARoads. Retrieved August 18, 2016.
- ^ Highway Information Services Division (December 31, 2012). Highway Location Reference. Maryland State Highway Administration. Retrieved 2012-09-29.
- ^ Highway Information Services Division (December 31, 1999). Highway Location Reference. Maryland State Highway Administration. Retrieved 2014-07-19.
- Montgomery County (PDF).