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Interstate Highways of the Maryland highway system
	; Standard route signs in Maryland;
	;
Highway names
Interstates	; Interstate X (I-X)
System links
	; ; Maryland highway system; Interstate; ; US; ; State; ; Scenic Byways; ; ;

The following is a list of Interstate Highways in Maryland. There are currently 16 Interstate Highways that exist entirely or partially in the U.S. state of Maryland. Six of these are primary Interstates while ten are auxiliary Interstates related to one of the primary Interstates. The longest primary Interstate in Maryland is Interstate 95 (commonly abbreviated I-95) at 110.01 mi (177.04 km). The shortest primary Interstate in Maryland is I-81 at 12.08 mi (19.44 km). I-97 is the shortest primary Interstate at 17.62 mi (28.36 km) and the shortest intrastate Interstate. I-97 is also the only primary Interstate to be located entirely within one county and to not connect with any other primary Interstate. The longest auxiliary Interstate in Maryland is I-695 at 51.48 mi (82.85 km). The shortest auxiliary Interstate in Maryland is I-295 at 0.80 mi (1.29 km). All Interstates are maintained by the Maryland State Highway Administration except for all of I-395, all of I-895, a small part of I-695, I-95 within and north of Baltimore, and I-83 within Baltimore. Maryland has one unsigned Interstate, I-595; that highway is marked as U.S. Route 50 and US 301, which are concurrent with I-595 for its entire length. Maryland has one former Interstate, I-170, which is shaded in dark gray in the list.

Number	Length (mi)^[1]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I0068 !I-68	81.09	130.50	I-68 at the West Virginia state line near Friendsville	I-70 / US 40 / US 522 in Hancock	01991-01-011991^[2]	current	Formerly designated as US-48.
I0070 !I-70	93.62	150.67	I-70 / US 522 at the Pennsylvania state line in Hancock	MD 122 / Park and ride in Baltimore	01962-01-011962^[3]	current	Frederick–Baltimore section was designated I-70N in 1965;^[4] that section became part of I-70 in 1974^[5]
I0081 !I-81	12.08	19.44	I-81 at the West Virginia state line in Williamsport	I-81 at the Pennsylvania state line near Hagerstown	01959-01-011959^[6]	current
I0083 !I-83	34.50	55.52	Fayette Street and President Street in Baltimore	I-83 at the Pennsylvania state line at Maryland Line	01959-01-011959^[6]	current
I0095 !I-95	110.01	177.04	I-95 / I-495 at the Virginia state line near Oxon Hill	I-95 at the Delaware state line near Elkton	01963-01-011963^[7]	current
I0097 !I-97	17.62	28.36	US 50 / US 301 in Parole	I-695 / I-895 in Ferndale	01987-01-011987^[8]	current
I0170 !I-170	1.40	2.25	US 1 / US 40 in Baltimore	US 40 in Baltimore	01981-01-011981^[9]	01985-01-011985^[10]	Replaced by US 40
I0195 !I-195	4.35	7.00	I-95 / MD 166 in Arbutus	MD 170 near BWI Airport	01989-01-011989^[11]	current
I0270 !I-270	32.60	52.46	I-495 / MD 355 in Bethesda	I-70 / US 40 in Frederick	01959-01-011959^[6]	current	Designated I-70S in 1959; became I-270 in 1974^[5]
I0295 !I-295	0.80	1.29	I-95 / I-495 / MD 210 in Oxon Hill	I-295 in Washington, D.C.	01965-01-011965^[4]	current
I0370 !I-370	2.54	4.09	Sam Eig Highway in Gaithersburg	MD 200 in Redland	01989-01-011989^[11]	current
I0395 !I-395	1.33	2.14	I-95 in Baltimore	Howard Street and Camden Street in Baltimore	01981-01-011981^[9]	current
I0495 !I-495	41.09	66.13	I-95 / I-495 at the Virginia state line near Oxon Hill	I-495 at the Virginia state line near Cabin John	01963-01-011963^[7]	current	Beltway around Washington, D.C.
I0595 !I-595	19.97	32.14	I-95 / I-495 / US 50 near Glenarden	US 50 / US 301 / MD 70 in Parole	01991-01-011991	current	Unsigned highway; signed as US 50 and US 301
I0695 !I-695	51.46	82.82	Beltway around Baltimore		01959-01-011959^[6]	current
I0795 !I-795	8.99	14.47	I-695 in Pikesville	MD 140 / MD 795 in Reisterstown	01985-01-011985^[10]	current
I0895 !I-895	14.87	23.93	I-95 in Elkridge	I-95 in Baltimore	01979-01-011979^[12]	current
Former

References

^ Highway Information Services Division (December 31, 2013). Highway Location Reference. Maryland State Highway Administration. Retrieved 2012-10-06.

^ Maryland State Highway Administration (1991). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.

^ Maryland State Roads Commission (1962). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.

^ ^a^b Maryland State Roads Commission (1965). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.

^ ^a^b Maryland State Highway Administration (1974). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.

^ ^a^b^c^d Maryland State Roads Commission (1959). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.

^ ^a^b Maryland State Roads Commission (1963). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.

^ Maryland State Highway Administration (1987). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.

^ ^a^b Maryland State Highway Administration (1981). Maryland: Official Highway Map (Map) (1981–1982 ed.). Baltimore: Maryland State Highway Administration.

^ ^a^b Maryland State Highway Administration (1985). Maryland: Official Highway Map (Map) (1985–1986 ed.). Baltimore: Maryland State Highway Administration.

^ ^a^b Maryland State Highway Administration (1989). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.

^ Maryland State Highway Administration (1979). Maryland: Official Highway Map (Map) (1979–1980 ed.). Baltimore: Maryland State Highway Administration.

[Maryland_HLR-1] Highway Information Services Division (December 31, 2013). Highway Location Reference. Maryland State Highway Administration. Retrieved 2012-10-06.

[1991_map-2] Maryland State Highway Administration (1991). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.

[1962_map-3] Maryland State Roads Commission (1962). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.

[1965_map-4] Maryland State Roads Commission (1965). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.

[1974_map-5] Maryland State Highway Administration (1974). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.

[1959_map-6] Maryland State Roads Commission (1959). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.

[1963_map-7] Maryland State Roads Commission (1963). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.

[1987_map-8] Maryland State Highway Administration (1987). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.

[1981_map-9] Maryland State Highway Administration (1981). Maryland: Official Highway Map (Map) (1981–1982 ed.). Baltimore: Maryland State Highway Administration.

[1985_map-10] Maryland State Highway Administration (1985). Maryland: Official Highway Map (Map) (1985–1986 ed.). Baltimore: Maryland State Highway Administration.

[1989_map-11] Maryland State Highway Administration (1989). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.

[1979_map-12] Maryland State Highway Administration (1979). Maryland: Official Highway Map (Map) (1979–1980 ed.). Baltimore: Maryland State Highway Administration.

v t e Maryland highway system
Lists of highways	Interstate Highways U.S. Highways Maryland state highways
Shorter than 1 mile (1.6 km)	2–699 700–799 800–899 900–999
Former state highways	2–199 200–399 400–499 500–599 600–699 700–999
Highway agencies	Maryland State Highway Administration (MDSHA) Maryland Transportation Authority (MDTA)
Other articles	Maryland Scenic Byways Baltimore Harbor Tunnel Fort McHenry Tunnel Baltimore–Washington Parkway Suitland Parkway Clara Barton Parkway

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List of Interstate Highways in Maryland

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Interstate Highways of the Maryland highway system
Standard route signs in Maryland

Highway names
Interstates	Interstate X (I-X)
System links
Maryland highway system Interstate US State Scenic Byways