List of state highways in Maryland
This article needs additional citations for verification. (July 2015) |
List of Maryland state highways | |
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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 example of duplicate numbers is MD 222, which is the old alignment of US 222 before the latter was rolled back from Perryville to Conowingo. 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.[citation needed]
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)[1] | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes |
---|---|---|---|---|---|---|---|
MD 2 | 79.24 | 127.52 | Solomons | US 1 in Baltimore | 1927 | current | |
MD 3 | 9.56 | 15.39 | US 50 / US 301 in Bowie | I-97 in Millersville | 1927 | current | |
MD 4 | 64.85 | 104.37 | MD 5 in Leonardtown | Pennsylvania Avenue in Washington, D.C. | 1927 | current | |
MD 5 | 74.34 | 119.64 | Point Lookout | Branch Avenue in Washington, D.C. | 1927 | current | |
MD 6 | 47.38 | 76.25 | Riverside | MD 235 in Oraville | 1927 | current | |
MD 7 | 22.83 | 36.74 | US 40 in Rosedale | US 40 / MD 159 in Aberdeen | 1938 | current | Longest section |
MD 8 | 8.37 | 13.47 | Romancoke | MD 18 in Stevensville | 1960 | current | |
MD 9 | — | — | — | — | 1978 | 1978 | proposed renumbering of US 140 west of Reisterstown (now part of MD 140) |
MD 10 | 7.17 | 11.54 | MD 2 in Pasadena | I-695 in Glen Burnie | 1972 | current | |
MD 12 | 30.57 | 49.20 | VA 679 near Stockton | Main Street in Salisbury | 1927 | current | |
MD 14 | 11.51 | 18.52 | MD 16 in Secretary | MD 313 in Eldorado | 1927 | current | |
MD 16 | 50.06 | 80.56 | Taylors Island | DE 16 near Andersontown | 1927 | current | |
MD 17 | 29.49 | 47.46 | VA 287 in Brunswick | Wolfsville | 1940 | current | |
MD 17 | — | — | Claiborne | US 213 in Easton | 1927 | 1940 | |
MD 18 | 20.47 | 32.94 | Love Point | MD 213 in Centreville | 1927 | current | Contiguous sections |
MD 19 | 8.60 | 13.84 | MD 213 in Church Hill | MD 313 in Ingleside | 1927 | current | |
MD 20 | 13.77 | 22.16 | Rock Hall | MD 291 in Chestertown | 1927 | current | |
MD 20 | 2.72 | 4.38 | MD 151 in Dundalk | MD 150 in Dundalk | 1927 | 1998 | Longest section |
MD 21 | 2.42 | 3.89 | MD 445 near Tolchester Beach | MD 20 near Fairlee | 1927 | current | |
MD 22 | 13.04 | 20.99 | US 1 Business / MD 924 in Bel Air | Aberdeen Proving Ground | 1927 | current | |
MD 23 | 20.46 | 32.93 | US 1 in Hickory | PA 24 near Norrisville | 1927 | current | |
MD 24 | 25.17 | 40.51 | Aberdeen Proving Ground | PA QR 2055 in Fawn Grove, PA | 1927 | current | |
MD 25 | 26.89 | 43.28 | MD 2 in Baltimore | Beckleysville Road near Alesia | 1927 | current | |
MD 26 | 44.10 | 70.97 | US 15 in Frederick | MD 140 in Baltimore | 1927 | current | |
MD 27 | 39.17 | 63.04 | MD 355 in Germantown | MD 30 in Manchester | 1934 | current | |
MD 27 | — | — | Georgia Avenue in Washington, D.C. | US 40 in Ellicott City | 1927 | 1934 | |
MD 28 | 37.38 | 60.16 | US 15 in Point of Rocks | MD 182 in Norwood | 1927 | current | |
MD 29 | — | — | US 240 in Germantown | US 140 in Westminster | 1927 | 1934 | |
MD 30 | 19.16 | 30.84 | MD 140 in Reisterstown | PA 94 near Manchester | 1927 | current | |
MD 31 | 16.95 | 27.28 | MD 26 in Libertytown | MD 140 in Westminster | 1927 | current | |
MD 32 | 51.79 | 83.35 | I-97 in Millersville | Westminster | 1927 | current | |
MD 33 | 23.17 | 37.29 | Tilghman Island | Washington Street in Easton | 1940 | current | |
MD 33 | — | — | Brunswick | Wolfsville | 1927 | 1940 | |
MD 34 | 9.95 | 16.01 | WV 480 near Shepherdstown, WV | US 40 Alternate in Boonsboro | 1927 | current | |
MD 35 | 2.37 | 3.81 | MD 36 in Corriganville | PA 96 in Ellerslie | 1927 | current | |
MD 36 | 29.43 | 47.36 | WV 46 in Westernport | US 40 Alternate in La Vale | 1927 | current | |
MD 37 | — | — | West Virginia state line near Redhouse | US 40 at Keyser's Ridge | 1927 | 1935 | |
MD 37 | — | — | Garrison near the Gwynns Falls | 1950 | 1998 | ||
MD 38 | 5.67 | 9.12 | WV 42 in Kitzmiller | MD 135 near Kitzmiller | 1927 | current | |
MD 39 | 6.22 | 10.01 | WV 7 in Hutton | US 219 in Oakland | 1927 | current | |
MD 41 | 6.75 | 10.86 | MD 147 in Baltimore | Waltham Woods Road in Carney | 1962 | current | |
MD 41 | — | — | US 219 in Oakland | MD 38 in Deer Park | 1927 | 1956 | |
MD 42 | 15.06 | 24.24 | US 219 near McHenry | PA QR 2013 in Asher Glade | 1927 | current | |
MD 43 | 8.65 | 13.92 | I-695 in Parkville | MD 150 in Middle River | 1963 | current | |
MD 44 | — | — | Fort Frederick State Park | MD 56 near Big Pool | 1936 | 1969 | |
MD 45 | 30.02 | 48.31 | US 1 in Baltimore | PA QR 3001 in Maryland Line | 1957 | current | |
MD 45 | — | — | dead end | US 40 Alternate northwest of Frostburg | 1927 | 1956 | |
MD 46 | — | — | MD 295 in Linthicum | BWI Airport | 1950 | 1990 | |
MD 47 | 1.70 | 2.74 | MD 36 in Barrelville | PA 160 near Barrelville | 1927 | current | |
MD 48 | — | — | US 220 near Dickens | Pennsylvania state line | 1927 | 1950 | |
MD 49 | 2.69 | 4.33 | MD 658 in La Vale | Greene Street in Cumberland | 1927 | current | |
MD 51 | 25.53 | 41.09 | I-68 / US 40 / US 220 in Cumberland | WV 9 near Paw Paw, WV | 1927 | current | |
MD 52 | — | — | MD 51 in Cumberland | Christie Road near Evitts Creek | 1927 | 1956 | |
MD 53 | 3.33 | 5.36 | US 220 in Cresaptown | US 40 Alternate in La Vale | 1927 | current | |
MD 54 | 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 54 | — | — | MD 17 in Myersville | Easterday Road near Myersville | 1933 | 1956 | |
MD 55 | 2.53 | 4.07 | MD 36 in Vale Summit | US 40 Alternate in Clarysville | 1927 | current | |
MD 56 | 8.08 | 13.00 | I-70 in Big Pool | MD 68 near Pinesburg | 1927 | current | |
MD 57 | 4.02 | 6.47 | US 40 near Clear Spring | MD 494 near Fairview | 1927 | current | |
MD 58 | 3.53 | 5.68 | MD 63 in Cearfoss | Hagerstown | 1928 | current | |
MD 59 | — | — | US 340 in Jefferson | US 40 Alternate in Middletown | 1929 | 1956 | |
MD 60 | 3.53 | 5.68 | Hagerstown | PA 316 near Leitersburg | 1927 | current | |
MD 61 | 1.94 | 3.12 | WV 28 in Cumberland | MD 51 in Cumberland | 2001 | current | |
MD 61 | — | — | Antietam Drive near Hagerstown | East of Hagerstown | 1927 | 1956 | |
MD 62 | 3.88 | 6.24 | MD 804 in Chewsville | MD 60 in Leitersburg | 1927 | current | |
MD 63 | 16.99 | 27.34 | MD 65 near Spielman | PA 163 near Cearfoss | 1927 | current | |
MD 64 | 13.33 | 21.45 | US 40 in Hagerstown | PA 997 near Ringgold | 1927 | current | |
MD 65 | 11.75 | 18.91 | MD 34 in Sharpsburg | Hagerstown | 1927 | current | |
MD 66 | 12.84 | 20.66 | US 40 Alternate in Boonsboro | MD 64 near Smithsburg | 1927 | current | |
MD 67 | 12.20 | 19.63 | US 340 in Weverton | US 40 Alternate in Boonsboro | 1927 | current | |
MD 68 | 18.50 | 29.77 | US 40 in Clear Spring | US 40 Alternate in Boonsboro | 1927 | current | |
MD 69 | — | — | Mount Zion Road near Braddock Heights | US 40 Alternate in Braddock Heights | 1927 | 1956 | |
MD 70 | 2.32 | 3.73 | MD 450 in Annapolis | Bestgate Road in Parole | 1954 | current | |
MD 70 | — | — | US 340 in Knoxville | Florida Avenue in Brunswick | 1927 | 1950 | |
MD 71 | — | — | MD 26 in Ceresville | PA 194 near Taneytown | 1927 | 1956 | |
MD 71 | — | — | US 50 in Queenstown | DE 71 near Warwick | 1956 | 1959 | |
MD 72 | — | — | US 15 in Lewistown | North of Creagerstown | 1927 | 1956 | |
MD 73 | — | — | Frederick | Yellow Springs | 1927 | 1969 | |
MD 74 | — | — | Frederick | Poole Jones Road near Frederick | 1927 | 1956 | |
MD 75 | 28.40 | 45.71 | MD 355 near Hyattstown | MD 31 in New Windsor | 1927 | current | |
MD 76 | 5.69 | 9.16 | MD 77 at Rocky Ridge | US 15 near Emmitsburg | 1927 | current | |
MD 77 | 20.74 | 33.38 | MD 64 in Smithsburg | MD 194 in Keymar | 1927 | current | |
MD 78 | — | — | Adamstown | US 340 near Frederick | 1927 | 1970 | |
MD 79 | 0.85 | 1.37 | MD 17 / MD 464 in Rosemont | Petersville Road in Rosemont | 1927 | current | |
MD 80 | 14.79 | 23.80 | MD 85 in Buckeystown | MD 27 near Damascus | 1927 | current | |
MD 81 | — | — | MD 806 in Thurmont | Fort Ritchie | 1927 | 1977 | |
MD 82 | — | — | MD 191 in Bethesda | MD 410 in Chevy Chase | 1929 | 1997 | |
MD 83 | — | — | MD 31 in New Windsor | one block south of MD 31 in New Windsor | 1927 | 1956 | |
MD 84 | 5.75 | 9.25 | MD 75 in New Windsor | MD 832 in Tyrone | 1927 | current | |
MD 85 | 10.82 | 17.41 | MD 28 in Tuscarora | Frederick | 1970 | current | |
MD 85 | — | — | Frederick–Carroll county line near Middleburg | Middleburg | 1927 | 1956 | |
MD 86 | 4.00 | 6.44 | MD 30 in Manchester | PA 516 in Lineboro | 1927 | current | |
MD 87 | — | — | Carrollton | MD 31 in Mexico | 1927 | 1956 | |
MD 88 | 8.01 | 12.89 | MD 30 Business in Hampstead | MD 25 near Butler | 1927 | current | |
MD 89 | — | — | MD 88 in Hampstead | Carroll–Baltimore county line near Hampstead | 1927 | 1956 | |
MD 90 | 11.83 | 19.04 | US 50 near Whaleyville | MD 528 in Ocean City | 1972 | current | |
MD 90 | — | — | Houcksville | MD 30 in Hampstead | 1927 | 1956 | |
MD 91 | 7.86 | 12.65 | MD 32 at Gamber | MD 30 near Upperco | 1927 | current | |
MD 92 | — | — | MD 64 in Smithsburg | East of Smithsburg | 1934 | 1956 | |
MD 93 | — | — | MD 26 at Shervettes Corner | Carroll–Baltimore county line near Shervettes Corner | 1927 | 1956 | |
MD 94 | 6.25 | 10.06 | Patuxent River near Damascus | Old Frederick Road near Lisbon | 1927 | current | |
MD 95 | — | — | West of Comus | MD 109 at Comus | 1930 | 1999 | |
MD 96 | — | — | Union Chapel Road near Glenwood | MD 144 near Lisbon | 1927 | 1956 | |
MD 97 | 55.27 | 88.95 | US 29 / MD 384 in Silver Spring | PA 97 near Littlestown, PA | 1927 | current | |
MD 98 | — | — | MD 32 in Glenelg | MD 144 near Ellicott City | 1927 | 1956 | |
MD 99 | 7.57 | 12.18 | MD 32 near West Friendship | US 29 in Ellicott City | 1927 | current | |
MD 100 | 22.05 | 35.49 | US 29 in Ellicott City | MD 177 in Jacobsville | 1970 | current | |
MD 100 | — | — | MD 99 near Ellicott City | Howard–Baltimore county line near Ellicott City | 1927 | 1956 | |
MD 101 | — | — | MD 99 near West Friendship | Howard–Carroll county line at Henryton | 1927 | 1956 | |
MD 102 | — | — | Ellicott City | MD 144 in Ellicott City | 1927 | 1956 | |
MD 103 | 8.29 | 13.34 | St. John's Lane in Ellicott City | Dorsey | 1927 | current | |
MD 104 | 1.14 | 1.83 | MD 108 near Columbia | MD 103 near Ellicott City | 1979 | current | |
MD 104 | — | — | MD 103 near Ellicott City | Howard–Baltimore county line at Ilchester | 1927 | 1956 | |
MD 105 | — | — | MD 144 in Ellicott City | MD 100 in Ellicott City | 1927 | 1956 | |
MD 106 | — | — | Glenelg | US 1 in Savage | 1927 | 1946 | |
MD 107 | 4.79 | 7.71 | MD 109 in Poolesville | MD 28 in Dawsonville | 1927 | current | |
MD 108 | 34.23 | 55.09 | MD 27 in Damascus | MD 175 in Columbia | 1927 | current | |
MD 109 | 11.87 | 19.10 | MD 107 in Poolesville | MD 355 in Hyattstown | 1927 | current | |
MD 110 | — | — | Old Annapolis Road near Mount Airy | Shirley Bohn Road near Mount Airy | 1948 | 1949 | |
MD 112 | 2.81 | 4.52 | MD 190 near Seneca | MD 28 in Darnestown | 1927 | current | |
MD 114 | 1.16 | 1.87 | MD 117 in Gaithersburg | MD 355 in Gaithersburg | 2022 | current | Unsigned |
MD 114 | — | — | MD 124 in Gaithersburg | Gaithersburg | 1930 | 1974 | |
MD 115 | 5.83 | 9.38 | MD 124 in Redland | MD 655 at Norbeck | 1928 | current | |
MD 116 | — | — | US 29 / MD 108 in Ashton | Brighton Dam Road near Brinklow | 1928 | 1960 | |
MD 117 | 12.67 | 20.39 | MD 28 in Dawsonville | MD 355 in Gaithersburg | 1927 | current | |
MD 118 | 7.08 | 11.39 | MD 28 in Darnestown | MD 355 in Germantown | 1927 | current | |
MD 119 | 7.47 | 12.02 | MD 28 in Rockville | Middlebrook Road in Germantown | 1999 | current | |
MD 119 | — | — | Near Germantown | MD 117 in Germantown | 1927 | 1958 | |
MD 120 | — | — | MD 118 in Germantown | Germantown | 1930 | 1999 | |
MD 121 | 3.96 | 6.37 | MD 117 in Boyds | Stringtown Road in Clarksburg | 1927 | current | section from MD 117 to MD 28 decommissioned 1999 |
MD 122 | 2.96 | 4.76 | Rolling Road in Woodlawn | Cooks Lane in Baltimore | 1991 | current | |
MD 122 | — | — | Clarksburg Road near Damascus | MD 27 in Damascus | 1927 | 1974 | |
MD 123 | — | — | MD 75 near Hyattstown | MD 122 near Damascus | 1927 | 1974 | |
MD 124 | 17.03 | 27.41 | MD 28 in Gaithersburg | MD 108 in Damascus | 1927 | current | |
MD 125 | 3.59 | 5.78 | Howard–Baltimore county line near Woodstock | Just east of Dogwood Road in Randallstown | 1927 | current | |
MD 126 | — | — | Windsor Mill Road in Woodlawn | MD 26 in Baltimore | 1927 | 1999 | |
MD 127 | — | — | MD 140 in Reisterstown | Western Maryland Railway near Glyndon | 1927 | 1987 | |
MD 128 | 7.62 | 12.26 | MD 30 / MD 795 in Reisterstown | MD 25 in Butler | 1930 | current | |
MD 129 | 15.43 | 24.83 | US 40 in Baltimore | Garrison Forest Road near Reisterstown | 1927 | current | |
MD 130 | 5.57 | 8.96 | MD 140 in Garrison | MD 25 in Brooklandville | 1927 | current | |
MD 131 | 3.06 | 4.92 | MD 25 in Brooklandville | MD 45 in Lutherville | 1927 | current | |
MD 132 | 2.15 | 3.46 | Aberdeen | Norman Avenue in Aberdeen | — | — | Longest section |
MD 132 | — | — | MD 131 near Mays Chapel | Timonium Road near Mays Chapel | 1930 | 1961 | |
MD 133 | 3.31 | 5.33 | MD 129 in Pikesville | MD 25 near Brooklandville | 1927 | current | |
MD 134 | 1.63 | 2.62 | MD 139 near Towson | Ruxton Road near Towson | 1928 | current | |
MD 135 | 29.00 | 46.67 | US 219 in Oakland | US 220 in McCoole | — | — | |
MD 136 | 30.04 | 48.34 | MD 7 near Riverside | MD 23 in Norrisville | 1927 | current | |
MD 137 | 8.50 | 13.68 | Gunpowder Road near Hampstead | MD 45 in Hereford | 1927 | current | |
MD 138 | 9.24 | 14.87 | MD 45 in Hereford | MD 23 in Shawsville | 1927 | current | |
MD 139 | 7.88 | 12.68 | US 1 in Baltimore | I-695 in Lutherville | 1927 | current | |
MD 140 | 49.72 | 80.02 | US 1 in Baltimore | PA 16 near Emmitsburg | — | — | |
MD 141 | — | — | MD 139 in Towson | US 111 / MD 146 / MD 148 in Towson | 1927 | 1961 | |
MD 142 | — | — | Wiseburg Road in White Hall | MD 23 in Shawsville | 1927 | 1981 | |
MD 143 | — | — | MD 45 in Cockeysville | Just north of Bosley Road near Loch Raven Reservoir | 1927 | 1983 | |
MD 144 | 17.55 | 28.24 | MD 807 in Cumberland | US 40 Scenic near Flintstone | — | — | Longest section |
MD 144 | — | — | US 111 / MD 141 / MD 148 in Towson | Hampton Lane in Hampton | 1927 | 1940 | |
MD 145 | 10.34 | 16.64 | MD 45 in Cockeysville | MD 165 near Baldwin | 1927 | current | |
MD 146 | 16.81 | 27.05 | MD 45 in Towson | MD 23 near Jarrettsville | 1928 | current | |
MD 147 | 18.82 | 30.29 | US 1 in Baltimore | US 1 / US 1 Business near Bel Air | 1927 | current | |
MD 148 | — | — | US 111 / MD 146 / MD 141 in Towson | US 1 in Perry Hall | 1927 | 1963 | |
MD 149 | — | — | White Marsh | Chase | 1927 | 1966 | |
MD 150 | 13.01 | 20.94 | US 40 in Baltimore | Graces Quarter Road in Chase | 1927 | current | |
MD 151 | 10.80 | 17.38 | Sparrows Point | US 1 in Baltimore | 1927 | current | |
MD 152 | 17.34 | 27.91 | Aberdeen Proving Ground | MD 146 near Jarrettsville | 1927 | current | |
MD 153 | — | — | US 1 in Bel Air | MD 7 in Edgewood | 1927 | 1940 | |
MD 153 | — | — | I-70 in Myersville | Wolfsville | 1956 | 1985 | |
MD 154 | — | — | MD 22 near Churchville | Kalmia | 1927 | 1955 | |
MD 155 | 9.12 | 14.68 | MD 22 in Churchville | US 40 / MD 7 in Havre de Grace | 1927 | current | |
MD 156 | 3.92 | 6.31 | MD 22 near Churchville | MD 155 near Havre de Grace | 1927 | current | swapped with MD 155 in 1952 |
MD 157 | 4.79 | 7.71 | MD 158 in Sparrows Point | I-695 in Dundalk | — | — | |
MD 157 | — | — | MD 462 near Aberdeen | Havre de Grace | 1927 | 1956 | |
MD 158 | 2.35 | 3.78 | Riverside Drive in Sparrows Point | North Point Road in Edgemere | — | — | |
MD 158 | — | — | US 40 in Belcamp | Creswell Road near Belcamp | 1927 | 1956 | |
MD 159 | 4.73 | 7.61 | Bush River | US 40 / MD 7 in Aberdeen | 1928 | current | |
MD 160 | — | — | MD 161 in Darlington | US 1 at Conowingo Dam | 1930 | 1955 | |
MD 161 | 5.38 | 8.66 | MD 155 near Havre de Grace | US 1 in Darlington | 1927 | current | |
MD 162 | 2.31 | 3.72 | MD 176 near Glen Burnie | MD 170 in Linthicum | — | — | |
MD 162 | — | — | US 1 near Darlington | Susquehanna River | 1928 | 1956 | |
MD 163 | — | — | MD 165 near Pylesville | Deer Creek | 1933 | 1955 | |
MD 164 | 2.63 | 4.23 | Carpenter Point | MD 267 in Charlestown | 1933 | 1979 | |
MD 165 | 20.38 | 32.80 | Just north of Long Green Pike in Baldwin | PA 74 in Cardiff | 1927 | current | |
MD 166 | 2.71 | 4.36 | I-195 in Arbutus | MD 144 in Catonsville | 1927 | current | |
MD 167 | — | — | MD 170 in Linthicum | Patapsco River | 1929 | 1974 | |
MD 168 | 1.28 | 2.06 | Hammonds Ferry Road in North Linthicum | MD 648 in Pumphrey | 1929 | current | |
MD 169 | 0.97 | 1.56 | Hammonds Ferry Road in Linthicum Heights | MD 648 in Linthicum | — | — | |
MD 170 | 12.98 | 20.89 | MD 175 in Odenton | MD 2 in Brooklyn Park | 1927 | current | |
MD 171 | 1.54 | 2.48 | MD 2 in Brooklyn Park | MD 173 in Baltimore | 1927 | current | |
MD 172 | 0.17 | 0.27 | U.S. Coast Guard Yard | MD 173 in Baltimore | 1930 | current | |
MD 173 | 13.73 | 22.10 | Fort Smallwood Park | MD 2 in Baltimore | 1927 | current | |
MD 174 | 5.94 | 9.56 | Fort Meade | MD 3 Business in Glen Burnie | 1927 | current | |
MD 175 | 17.01 | 27.37 | Little Patuxent Parkway in Columbia | MD 3 in Millersville | 1927 | current | |
MD 176 | 5.68 | 9.14 | Hanover | MD 648 in Glen Burnie | 1929 | current | |
MD 177 | 10.92 | 17.57 | MD 2 in Pasadena | Gibson Island | 1927 | current | |
MD 178 | 8.06 | 12.97 | MD 450 in Parole | Veterans Highway near Millersville | 1927 | current | |
MD 179 | 3.16 | 5.09 | MD 648 near Annapolis | Cape Saint Claire | 1927 | current | |
MD 180 | 14.63 | 23.54 | US 340 in Knoxville | I-70 in Frederick | — | — | |
MD 180 | — | — | Fort Meade | US 301 in Millersville | 1930 | 1946 | |
MD 181 | 0.16 | 0.26 | Spa Creek Bridge in Annapolis | 1927 | current | decommissioned in 1999 and recommissioned in 2009 | |
MD 182 | 6.60 | 10.62 | MD 97 in Glenmont | MD 108 near Sandy Spring | 1927 | current | |
MD 183 | — | — | MD 97 in Glenmont | MD 650 in Colesville | 1927 | 1981 | |
MD 184 | 0.36[2] | 0.58 | US 29 in Silver Spring | Blair Road in Washington, D.C. | 1927 | 1999 | |
MD 185 | 8.32 | 13.39 | Connecticut Avenue in Washington, D.C. | MD 97 in Aspen Hill | — | — | |
MD 185 | — | — | MD 184 | MD 605 | 1927 | 1958 | bridge over railroad that has nothing remaining |
MD 186 | 1.52 | 2.45 | Western Avenue in Washington, D.C. | MD 410 in Chevy Chase | 1927 | current | |
MD 187 | 5.04 | 8.11 | MD 355 / MD 410 in Bethesda | Executive Boulevard in North Bethesda | 1927 | current | |
MD 188 | 3.25 | 5.23 | MacArthur Boulevard in Glen Echo | MD 187 in Bethesda | 1927 | current | |
MD 189 | 5.05 | 8.13 | MD 190 in Potomac | Maryland Avenue in Rockville | 1927 | current | |
MD 190 | 15.88 | 25.56 | MD 112 in Seneca | River Road in Washington, D.C. | 1927 | current | |
MD 191 | 7.16 | 11.52 | MD 190 in Potomac | MD 185 in Chevy Chase | 1927 | current | section from MD 190 to Macarthur Blvd decommissioned 1999 |
MD 192 | 2.82 | 4.54 | Summit Avenue in Kensington | MD 97 in Forest Glen | 1927 | current | |
MD 193 | 26.07 | 41.96 | MD 185 in Kensington | MD 202 near Upper Marlboro | 1927 | current | |
MD 194 | 22.40 | 36.05 | MD 26 in Ceresville | PA 194 near Taneytown | 1956 | current | |
MD 194 | — | — | MD 195 in Takoma Park | MD 516 in Silver Spring | 1927 | 1956 | |
MD 195 | 1.90 | 3.06 | Carroll Avenue in Washington, D.C. | MD 193 in Takoma Park | 1930 | current | |
MD 196 | — | — | US 29 in White Oak | MD 198 in Burtonsville | 1930 | 1999 | |
MD 197 | 14.64 | 23.56 | US 301 in Bowie | MD 198 in Laurel | 1927 | current | |
MD 198 | 14.14 | 22.76 | MD 650 near Spencerville | Fort Meade | 1927 | current | |
MD 199 | — | — | US 50 near Glenn Dale | Washington, Baltimore and Annapolis Electric Railway | 1927 | 1956 | |
MD 200 | 17.47 | 28.12 | I-370 in Derwood | US 1 near Beltsville | 2011 | current | |
MD 200 | — | — | MD 4 in Coral Hills | MD 214 in Capitol Heights | 1927 | 1955 | |
MD 201 | 9.40 | 15.13 | DC 295 near Bladensburg | MD 212 in Beltsville | 1927 | current | |
MD 202 | 13.92 | 22.40 | MD 450 in Bladensburg | MD 725 near Upper Marlboro | 1927 | current | |
MD 203 | — | — | US 1 in College Park | Baltimore & Ohio Railroad | 1927 | 1957 | |
MD 204 | — | — | Takoma Park | MD 212 in Chillum | 1928 | 1955 | |
MD 205 | — | — | US 50 in Bladensburg | MD 430 in Greenbelt | 1927 | 1956 | |
MD 205 | — | — | MD 5 in Waldorf | US 301 / MD 5 in Waldorf | 1989 | 1997 | |
MD 206 | 3.17 | 5.10 | MD 212 near Beltsville | Old Gunpowder Road in West Laurel | 2014 | current | |
MD 206 | — | — | US 1 Alternate in Cottage City | US 1 in Brentwood | 1927 | 1970 | |
MD 207 | — | — | MD 208 in Cottage City | Bunker Hill Rd. in Cottage City | 1927 | 1970 | 2 roads on each side of the Amtrak train tracks. |
MD 208 | 1.86 | 2.99 | US 1 Alternate in Cottage City | MD 500 in Hyattsville | 1927 | current | |
MD 209 | — | — | MD 212 in Chillum | Hyattsville | 1927 | 1946 | |
MD 210 | 20.86 | 33.57 | Indian Head Naval Surface Weapons Center | South Capitol Street in Washington, D.C. | 1955 | current | |
MD 210 | — | — | Queens Chapel Road in Washington, D.C. | MD 209 in Hyattsville | 1927 | 1946 | |
MD 211 | — | — | Sargent Road in Washington, D.C. | MD 212 in Chillum | 1927 | 1997 | |
MD 212 | 10.43 | 16.79 | Riggs Road in Washington, D.C. | MD 201 in Beltsville | 1927 | current | |
MD 213 | 68.25 | 109.84 | MD 662 in Wye Mills | PA 841 near Fair Hill | — | — | |
MD 214 | 24.97 | 40.19 | East Capitol Street in Washington, D.C. | Beverly Beach | 1927 | current | |
MD 215 | — | — | MD 103 near Elkridge | US 1 in Elkridge | 1927 | 1956 | |
MD 216 | 9.06 | 14.58 | MD 108 in Highland | MD 198 in Laurel | 1927 | current | |
MD 217 | — | — | MD 103 near Elkridge | Ilchester | 1927 | 1956 | |
MD 218 | 1.14 | 1.83 | Suitland Road in Washington, D.C. | MD 458 in Suitland | 1927 | current | |
MD 219 | 0.22 | 0.35 | Section of future course of US 219 in Oakland | — | — | ||
MD 221 | 0.59 | 0.95 | Section of Ritchie–Marlboro Road through its interchange with I-95 / I-495 near Largo | — | — | ||
MD 221 | — | — | MD 214 near Largo | MD 4 near Upper Marlboro | 1927 | 1955 | |
MD 222 | 11.36 | 18.28 | MD 7 in Perryville | US 1 near Conowingo | 1972 | current | |
MD 223 | 12.65 | 20.36 | Piscataway | Melwood | 1927 | current | |
MD 224 | 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 |
MD 225 | 10.59 | 17.04 | MD 210 in Potomac Heights | US 301 in La Plata | 1927 | current | |
MD 226 | — | — | MD 224 at Bryans Road | Marshall Hall | 1927 | 1956 | |
MD 227 | 13.96 | 22.47 | Marshall Hall | US 301 in White Plains | 1927 | current | |
MD 228 | 6.86 | 11.04 | MD 210 in Accokeek | US 301 / MD 5 Business in Waldorf | 1927 | current | |
MD 229 | 5.25 | 8.45 | MD 227 near Bennsville | MD 228 near Bennsville | 1995 | current | |
MD 229 | — | — | Morgantown | MD 3 at Wayside | 1927 | 1956 | |
MD 230 | — | — | MD 3 at Newburg | Mount Victoria | 1927 | 1956 | |
MD 231 | 16.39 | 26.38 | Olivers Shop Road near Bryantown | MD 765 in Prince Frederick | 1927 | current | |
MD 232 | — | — | MD 234 at Wicomico | MD 382 near Waldorf | 1927 | 1989 | |
MD 233 | — | — | MD 5 near Waldorf | Charles–Prince George's county line near Aquasco | 1927 | 1956 | |
MD 234 | 19.02 | 30.61 | US 301 near Newburg | MD 5 in Leonardtown | 1927 | current | |
MD 235 | 30.63 | 49.29 | MD 5 in Ridge | MD 5 in Oraville | 1927 | current | Longest state highway within a single county |
MD 236 | 6.19 | 9.96 | MD 234 near Budds Creek | MD 5 in Charlotte Hall | 1930 | current | |
MD 237 | 2.95 | 4.75 | MD 246 in Lexington Park | MD 235 in California | 1987 | current | |
MD 237 | — | — | MD 234 / MD 238 at Chaptico | MD 5 near Leonardtown | 1927 | 1961 | |
MD 238 | 10.83 | 17.43 | MD 242 near Bushwood | MD 5 near Morganza | 1927 | current | |
MD 239 | 1.64 | 2.64 | Bushwood | MD 242 near Bushwood | 1927 | current | |
MD 241 | — | — | MD 242 / MD 470 at Avenue | Abell | 1928 | 1956 | |
MD 242 | 12.80 | 20.60 | Coltons Point | MD 5 at Morganza | 1927 | current | |
MD 243 | 4.62 | 7.44 | Compton | MD 5 in Leonardtown | 1927 | current | |
MD 244 | 10.48 | 16.87 | MD 5 near Leonardtown | MD 249 in Valley Lee | 1927 | current | |
MD 245 | 7.55 | 12.15 | MD 5 in Leonardtown | Sotterley | 1927 | current | |
MD 246 | 3.35 | 5.39 | MD 5 in Great Mills | Naval Air Station Patuxent River | 1927 | current | |
MD 247 | 2.89 | 4.65 | MD 5 near Loveville | Oakville Road in Oakville | 1942 | current | |
MD 247 | 2.89 | 4.65 | MD 246 in Lexington Park | near Hermanville | 1927 | 1933 | |
MD 248 | — | — | MD 246 near Jarboesville | Cedar Point | 1927 | 1943 | |
MD 249 | 9.84 | 15.84 | St. George Island | MD 5 at Callaway | 1927 | current | |
MD 250 | — | — | West of Valley Lee | MD 249 at Valley Lee | 1927 | 1946 | |
MD 250 | 0.19 | 0.31 | US 13 Business in Pocomoke City | US 13 / US 113 in Pocomoke City | 1946 | current | |
MD 251 | — | — | MD 249 at Valley Lee | Drayden | 1928 | 1946 | |
MD 251 | — | — | MD 430 at Berwyn Heights | MD 434 at Berwyn Heights | 1946 | 1977 | |
MD 252 | — | — | Millers Wharf Road | MD 5 at Ridge | 1927 | 1983 | |
MD 253 | 1.34 | 2.16 | MD 214 in Edgewater | MD 2 in Edgewater | 1927 | current | |
MD 254 | — | — | MD 424 in Davidsonville | MD 2 in Edgewater | 1927 | 1939 | |
MD 254 | 1.25 | 2.01 | Cobb Island | MD 257 near Rock Point | 1958 | current | |
MD 255 | 4.21 | 6.78 | MD 2 near Owensville | Galesville | 1927 | current | |
MD 256 | 5.28 | 8.50 | MD 2 in Tracys Landing | MD 468 in Shady Side | 1927 | current | |
MD 257 | — | — | MD 2 in Tracys Landing | Deale | 1927 | 1939 | |
MD 257 | 9.75 | 15.69 | MD 254 near Rock Point | US 301 in Newburg | 1957 | current | |
MD 258 | 7.13 | 11.47 | MD 4 in Bristol | MD 256 in Deale | 1928 | current | |
MD 259 | 2.67 | 4.30 | MD 794 in Bristol | MD 408 near Lothian | 1928 | current | |
MD 260 | 8.68 | 13.97 | MD 4 at Lyons Creek | MD 261 in Chesapeake Beach | 1927 | current | |
MD 261 | 12.86 | 20.70 | MD 263 near Parran | MD 778 in Friendship | 1930 | current | |
MD 262 | 4.47 | 7.19 | Lower Marlboro | MD 4 in Sunderland | 1927 | current | |
MD 263 | 6.17 | 9.93 | MD 2 / MD 4 near Huntingtown | Plum Point | 1927 | current | |
MD 264 | 6.66 | 10.72 | Broomes Island | MD 2 / MD 4 near Port Republic | 1927 | current | |
MD 265 | 1.75 | 2.82 | Wallville | MD 264 at Mutual | 1929 | current | |
MD 266 | — | — | Sollers | MD 2 in Lusby | 1928 | 1957 | |
MD 267 | 1.90 | 3.06 | MD 7 near Charlestown | MD 7 in Charlestown | 1927 | current | |
MD 268 | 11.68 | 18.80 | US 40 in Perryville | US 1 at Conowingo | 1927 | 1938 | |
MD 268 | 0.95 | 1.53 | Main Street in Elkton | MD 279 in Elkton | 1968 | current | |
MD 269 | 6.40 | 10.30 | US 222 in Port Deposit | MD 276 near Colora | 1927 | 1984 | |
MD 270 | 2.16 | 3.48 | MD 648 in Glen Burnie | MD 3 Business in Glen Burnie | 1932 | current | |
MD 271 | 0.33 | 0.53 | North from MD 7 in Perryville | 1930 | 1968 | ||
MD 272 | 20.67 | 33.27 | Elk Neck State Park | PA 272 near Calvert | 1927 | current | |
MD 273 | 16.74 | 26.94 | US 1 near Harrisville | DE 273 near Newark, DE | 1927 | current | |
MD 274 | 7.35 | 11.83 | MD 273 in Rising Sun | MD 272 at Bay View | 1927 | current | |
MD 275 | — | — | MD 213 in Kingstown | dead end in Kingstown | 1927 | 1946 | |
MD 275 | 2.22 | 3.57 | MD 222 / MD 824 in Perryville | MD 276 near Port Deposit | 1967 | current | |
MD 276 | 7.85 | 12.63 | MD 222 in Port Deposit | US 1 near Harrisville | 1927 | current | |
MD 277 | 2.51 | 4.04 | Elk Mills | MD 279 near Elkton | 1927 | current | |
MD 278 | 0.21 | 0.34 | Delaware state line in northeastern Cecil County | Pennsylvania state line in northeastern Cecil County | 1927 | 1946 | |
MD 279 | 4.95 | 7.97 | US 40 / MD 7 near Elkton | DE 279 near Elkton | 1927 | current | |
MD 280 | 9.40 | 15.13 | US 40 / US 213 in Elkton | PA 841 near Fair Hill | 1927 | 1971 | |
MD 281 | 2.12 | 3.41 | MD 7 in Elkton | Old Baltimore Pike at the Delaware state line near Elkton | 1933 | current | |
MD 282 | 12.43 | 20.00 | White Crystal Beach | DE 299 near Warwick | 1927 | current | |
MD 283 | 4.46 | 7.18 | Crystal Beach | MD 282 in Earleville | 1928 | 1958 | |
MD 284 | 0.25 | 0.40 | Hemphill Street between intersections with MD 285 in Chesapeake City | 1927 | current | ||
MD 285 | 2.43 | 3.91 | MD 213 near Chesapeake City | Chesapeake City Road at Delaware state line near Chesapeake City | 1930 | current | |
MD 286 | 2.09 | 3.36 | MD 537 in Chesapeake City | DE 286 near Chesapeake City | 1930 | current | |
MD 287 | 2.88 | 4.63 | MD 313 in Goldsboro | DE 10 near Sandtown, DE | 1933 | current | |
MD 288 | 3.33 | 5.36 | MD 20 in Rock Hall | Crosby | 1927 | current | |
MD 289 | 8.83 | 14.21 | Cliffs City | MD 213 in Chestertown | 1927 | current | |
MD 290 | 17.20 | 27.68 | MD 300 near Sudlersville | MD 299 in Sassafras | 1927 | current | |
MD 291 | 18.34 | 29.52 | MD 20 in Chestertown | DE 6 near Millington | 1930 | current | |
MD 292 | 4.61 | 7.42 | MD 298 in Still Pond | Betterton | 1927 | current | |
MD 293 | — | — | Ericsson Avenue in Betterton | 1930 | 1988 | Longest section | |
MD 294 | — | — | Wheeler Avenue in Betterton | 1930 | 1948 | ||
MD 295 | — | — | Howell Point Road in Betterton | 1930 | 1948 | ||
MD 295 | 32.52 | 52.34 | US 50 near Cheverly | US 40 in Baltimore | — | — | |
MD 296 | — | — | First Avenue in Betterton | 1930 | 1948 | ||
MD 297 | 3.59 | 5.78 | MD 213 near Chestertown | MD 298 in Worton | 1927 | current | |
MD 298 | 20.14 | 32.41 | MD 20 in Fairlee | MD 291 near Chesterville | 1930 | current | |
MD 299 | 5.67 | 9.12 | MD 313 / MD 330 at Massey | US 301 near Warwick | 1929 | current | |
MD 300 | 13.55 | 21.81 | MD 213 in Church Hill | DE 300 near Sudlersville | 1927 | current | Contiguous sections |
MD 301 | — | — | MD 300 at Dudley Corners | Crumpton | 1927 | 1940 | |
MD 302 | 10.21 | 16.43 | US 301 near Barclay | DE 11 near Templeville | 1927 | current | |
MD 303 | — | — | US 213 south of Centreville | Queen Anne | 1927 | 1955 | |
MD 303 | 4.20 | 6.76 | MD 309 in Cordova | MD 404 in Queen Anne | 1961 | current | |
MD 304 | 15.23 | 24.51 | Corsica Neck Road west of Centreville | MD 312 in Bridgetown | 1927 | current | |
MD 305 | 5.08 | 8.18 | MD 213 in Centreville | Hope | 1927 | current | |
MD 306 | 4.13 | 6.65 | Federalsburg | Delaware state line near Federalsburg | 1927 | current | |
MD 307 | 6.05 | 9.74 | MD 331 in Hurlock | Federalsburg | 1927 | current | |
MD 308 | 0.12 | 0.19 | MD 313 / MD 318 in Federalsburg | Federalsburg | 1927 | current | |
MD 309 | 18.50 | 29.77 | US 50 in Easton | MD 213 near Centreville | 1927 | current | |
MD 310 | 3.96 | 6.37 | MD 213 near Chesapeake City | Churchtown Road at Delaware state line near Chesapeake City | 1927 | current | |
MD 311 | 6.11 | 9.83 | MD 313 in Goldsboro | MD 454 in Marydel | 1927 | current | |
MD 312 | 11.41 | 18.36 | MD 404 near Ridgely | MD 313 at Baltimore Corner | 1927 | current | |
MD 313 | 75.72 | 121.86 | US 50 in Mardela Springs | MD 213 / MD 290 in Galena | 1927 | current | Contiguous sections |
MD 314 | 4.93 | 7.93 | Greensboro | DE 12 in Whiteleysburg | 1927 | current | |
MD 315 | — | — | Sunset Avenue in Greensboro | MD 313 / MD 480 in Greensboro | 1927 | 1950 | |
MD 315 | 3.13 | 5.04 | MD 313 / MD 318 in Federalsburg | MD 318 near Federalsburg | 1964 | current | |
MD 316 | 2.67 | 4.30 | MD 279 in Elkton | MD 277 near Elk Mills | 1927 | current | |
MD 317 | 4.78 | 7.69 | MD 313 near Denton | DE 14 in Burrsville | 1927 | current | |
MD 318 | 11.32 | 18.22 | MD 16 / MD 331 near Preston | DE 18 near Federalsburg | 1927 | current | |
MD 319 | — | — | MD 16 / MD 331 near Preston | Federalsburg | 1928 | 1956 | |
MD 320 | 2.84 | 4.57 | Piney Branch Road in Washington, D.C. | MD 650 in Adelphi | 1927 | current | |
MD 321 | — | — | Old Washington Rd (then MD 477) in Elkridge | US 1 in Elkridge | 1931 | 1954 | |
MD 322 | — | — | Brumbaugh St in Elkridge | Railroad in Elkridge | 1931 | 1946 | |
MD 322 | — | — | MD 313 near Federalsburg | MD 16 / MD 404 at Andersontown | 1952 | 1954 | |
MD 322 | 5.12 | 8.24 | US 50 south of Easton | US 50 in Easton | — | — | |
MD 323 | — | — | Railroad in Elkridge | Railroad Ave in Elkridge | 1931 | 1946 | |
MD 324 | 0.40 | 0.64 | Preston | MD 16 / MD 331 in Preston | 1927 | current | |
MD 325 | — | — | Spring Grove State Hospital | MD 144 in Catonsville | 1930 | 1978 | |
MD 326 | — | — | Leonardtown Wharf | MD 5 in Leonardtown | 1933 | 1985 | |
MD 327 | — | — | MD 6 near Port Tobacco | US 301 near La Plata | 1930 | 1956 | |
MD 327 | 0.51 | 0.82 | MD 7 in Perryville | Perryville | 1968 | current | |
MD 328 | 15.24 | 24.53 | US 50 in Easton | West Denton | 1927 | current | |
MD 329 | 3.29 | 5.29 | MD 33 west of Royal Oak | MD 33 east of Royal Oak | 1927 | current | |
MD 330 | — | — | US 1 in Kingsville | Bradshaw Road in Kingsville | 1927 | 1985 | |
MD 330 | 3.72 | 5.99 | MD 299 / MD 313 at Massey | Clayton Road at Delaware state line near Massey | 1988 | current | |
MD 331 | 28.74 | 46.25 | US 50 in Vienna | US 50 in Easton | — | — | |
MD 331 | — | — | MD 16 in Cambridge | US 213 in Easton | 1927 | 1939 | |
MD 332 | 1.07 | 1.72 | Central Avenue in Washington, D.C. | MD 214 in Seat Pleasant | — | — | |
MD 332 | — | — | MD 565 in Easton | MD 331 in Easton | 1927 | 1961 | |
MD 333 | 9.79 | 15.76 | Oxford | Washington Street in Easton | 1927 | current | |
MD 334 | 0.61 | 0.98 | MD 322 in Easton | Washington Street in Easton | 1927 | current | |
MD 335 | 16.36 | 26.33 | Hooper's Island | MD 16 in Church Creek | 1927 | current | |
MD 336 | 4.87 | 7.84 | MD 335 at Crossroads | Lakesville | 1927 | current | |
MD 337 | 3.41 | 5.49 | MD 5 in Camp Springs | MD 4 in Meadows | 1927 | current | |
MD 338 | 1.24 | 2.00 | Octoraro Creek | US 1 / US 222 at Conowingo | 1927 | 1979 | |
MD 339 | — | — | MD 331 in Rhodesdale | MD 331 in Rhodesdale | 1927 | 1954 | |
MD 339 | — | — | US 29 in Silver Spring | MD 320 in Silver Spring | 1955 | 1999 | |
MD 341 | 1.25 | 2.01 | MD 16 near Cambridge | MD 343 in Cambridge | — | — | |
MD 341 | — | — | MD 14 near Brookview | MD 14 near Brookview | 1927 | 1965 | |
MD 342 | — | — | MD 16 near Secretary | MD 14 in Secretary | 1927 | 1939 | Became part of MD 14 |
MD 342 | 2.82 | 4.54 | MD 310 at St. Augustine | MD 537 in Chesapeake City | 1941 | current | |
MD 343 | 11.29 | 18.17 | Hudson | US 50 in Cambridge | 1927 | current | |
MD 344 | — | — | MD 16 at Mount Holly | US 213 in Vienna | 1927 | 1939 | |
MD 344 | 2.16 | 3.48 | MD 6 in Doncaster | MD 224 near Chicamuxen | 1957 | current | |
MD 345 | — | — | Backbone Mountain | US 50 near Redhouse | 1940 | 1954 | |
MD 346 | 23.72 | 38.17 | US 50 Business in Salisbury | US 50 near Berlin | — | — | |
MD 347 | 6.92 | 11.14 | MD 349 in Quantico | US 50 in Hebron | 1927 | current | |
MD 348 | 1.39 | 2.24 | Sharptown | DE 24 near Sharptown | 1930 | current | |
MD 349 | 22.32 | 35.92 | Nanticoke | US 50 Business in Salisbury | 1927 | current | |
MD 350 | 11.80 | 18.99 | Main Street in Salisbury | MD 354 in Powellville | 1927 | current | |
MD 351 | — | — | Little Brown Road | MD 663 in Fruitland | 1927 | 1956 | |
MD 351 | 4.24 | 6.82 | Church Hill | MD 180 in Frederick | 1987 | 2002 | |
MD 351 | 4.24 | 6.82 | Church Hill | MD 180 in Frederick | 2003 | 2014 | |
MD 352 | 10.03 | 16.14 | MD 349 at Coxs Corner | MD 349 near Catchpenny | 1933 | current | |
MD 353 | 5.08 | 8.18 | US 50 in Pittsville | MD 54 / DE 54 / DE 26 at the Delaware state line near Gumboro, DE | 1927 | current | |
MD 354 | 14.98 | 24.11 | MD 12 near Snow Hill | US 50 in Willards | 1927 | current | |
MD 355 | 36.94 | 59.45 | Wisconsin Avenue in Washington, D.C. | Frederick | 1954 | current | |
MD 355 | 0.1 | 0.16 | MD 413 in Crisfield | 1927 | 1954 | ||
MD 356 | — | — | MD 413 near Kingston | MD 667 in Kingston | 1927 | 1961 | |
MD 357 | — | — | Tulls Corner Road near Marion Station | Charles Cannon Road near Marion Station | 1927 | 1991 | |
MD 358 | 1.13 | 1.82 | MD 413 in Crisfield | Near Crisfield | 1927 | current | Originally MD 475; formerly continued south and east to MD 380 |
MD 359 | — | — | Boone Road | MD 380 near Crisfield | 1927 | 1960 | |
MD 359 | 1.09 | 1.75 | Pocomoke City | MD 756 near Pocomoke City | 1974 | current | |
MD 360 | — | — | Sackertown Road | MD 358 near Crisfield | 1927 | 1960 | |
MD 361 | 5.62 | 9.04 | Fairmount | MD 413 in Westover | 1927 | current | |
MD 362 | 6.23 | 10.03 | Mount Vernon | MD 675 in Princess Anne | 1929 | current | |
MD 363 | 18.30 | 29.45 | Deal Island | Mansion Avenue in Princess Anne | 1927 | current | |
MD 364 | 5.43 | 8.74 | US 13 / US 13 Business in West Pocomoke | Pocomoke State Forest | 1927 | current | |
MD 365 | 6.29 | 10.12 | US 113 Business in Snow Hill | Public Landing | 1927 | current | |
MD 366 | 11.17 | 17.98 | US 13 Business in Pocomoke City | George Island Landing | 1927 | current | |
MD 367 | 2.60 | 4.18 | Bishop | Hudson Road at Delaware state line near Bishopville | 1927 | current | |
MD 368 | 0.28 | 0.45 | MD 367 in Bishopville | Bishopville | 1927 | current | |
MD 369 | — | — | US 113 in Basket Switch | Railroad Crossing | 1927 | 1956 | |
MD 370 | 1.58 | 2.54 | MD 33 near Easton | Unionville | 1933 | current | |
MD 371 | 4.27 | 6.87 | Cedar Hall | Pocomoke City | 1930 | current | |
MD 372 | 2.86 | 4.60 | MD 166 in Arbutus | US 1 in Baltimore | 1927 | current | |
MD 373 | 8.16 | 13.13 | MD 210 in Accokeek | Brandywine Road near Brandywine | 1927 | current | |
MD 374 | 9.98 | 16.06 | MD 354 in Powellville | MD 818 in Berlin | 1927 | current | |
MD 375 | 0.06 | 0.097 | MD 818 in Berlin | MD 374 in Berlin | 1927 | current | |
MD 376 | 4.56 | 7.34 | MD 818 in Berlin | MD 611 near Sinepuxent | 1927 | current | |
MD 377 | 0.78 | 1.26 | MD 376 in Berlin | MD 346 in Berlin | 1927 | current | |
MD 378 | 1.49 | 2.40 | MD 528 in Ocean City | MD 528 in Ocean City | 1927 | current | |
MD 379 | — | — | MD 5 in Leonardtown | End of pavement | 1939 | 1978 | |
MD 380 | 1.56 | 2.51 | Lawsonia | Crisfield | 1934 | current | |
MD 381 | 15.91 | 25.60 | MD 231 in Patuxent | US 301 in Brandywine | 1927 | current | |
MD 382 | 15.34 | 24.69 | Poplar Hill | US 301 in Marlton | 1927 | current | |
MD 383 | 5.48 | 8.82 | MD 180 near Jefferson | MD 17 near Middletown | 1930 | current | |
MD 384 | 0.53 | 0.85 | MD 390 in Silver Spring | US 29 / MD 97 in Silver Spring | 1929 | current | |
MD 385 | — | — | Marshyhope Creek | Delaware state line | 1927 | 1946 | |
MD 385 | — | — | MD 352 north of Whitehaven | MD 349 | 1948 | 1964 | |
MD 386 | — | — | Truck House Road | MD 648 in Severna Park | 1930 | 1973 | |
MD 387 | 1.68 | 2.70 | Ferry Point Road near Annapolis | MD 435 / MD 450 in Annapolis | 1930 | current | |
MD 388 | 2.38 | 3.83 | MD 675 in Princess Anne | East of Princess Anne | 1930 | current | |
MD 389 | — | — | MD 214 | MD 704 in Seat Pleasant | 1930 | 1955 | |