. "US 40 from Martin Boulevard Baltimore County Maryland May 1953 NARA-169153918.jpg"@en . . . . "Westbound exit, eastbound entrance"@en . . . . . . . . . "La Vale"@en . "128.04"^^ . "124.68"^^ . . . "37.09"^^ . . . . . . . . . "Aberdeen"@en . . . . . . . "40" . "No access to northbound MD 2"@en . . . . . "Eastbound exit, westbound entrance; Mountain Road is unsigned MD 903; east end of concurrency with US 40 Scenic"@en . . "31.46"^^ . "208.45"^^ . "356.16392064"^^ . "39"^^ . . . . . . . . "1112592057"^^ . "142.58"^^ . . "177.96"^^ . . . . "U.S. Route 40 in Maryland"@en . "Baltimore"@en . . . . . "South Street"@en . . "I-95 Exit 61; ramps from westbound US 40 to southbound I-95 and northbound I-95 to eastbound US 40"@en . "Cooksville"@en . . . . . . . . "West Friendship"@en . "173.76"^^ . "11"^^ . . . . . "7"^^ . "4"^^ . "Westbound exit only"@en . . "5"^^ . "33.51"^^ . . "2"^^ . "MD"@en . . . . "No eastbound exit"@en . . . . "121.09"^^ . . . . . "Harford"@en . . . . "US" . "123.6"^^ . . . "122.44"^^ . "Carroll"@en . "near Grantsville"@en . . . . . "Hillcrest Drive"@en . . . . "3.41"^^ . . "Westbound exit and entrance"@en . . . . . . . . "Elkton"@en . "42.42"^^ . "204.9"^^ . . . . . . . . "45"^^ . . "46"^^ . "47"^^ . "43.0"^^ . . "40"^^ . . "41"^^ . "42"^^ . . "200"^^ . . "20"^^ . . "Officially MD 7B"@en . . "39"^^ . "34"^^ . "incomplete"@en . "No eastbound entrance"@en . "Indian Springs"@en . . "62"^^ . . . . . "56"^^ . . . "at Delaware border in Elkton"@en . "145.75"^^ . "45.87"^^ . "59"^^ . "52"^^ . "Rosedale"@en . "53"^^ . "54"^^ . . "55"^^ . . . "50"^^ . . "Joppatowne"@en . . . "Cecil"@en . "169.09"^^ . "12"^^ . "13"^^ . . . "East end of concurrency with US 15"@en . "14"^^ . . . "Catonsville"@en . "9"^^ . . . . "61.56"^^ . "Pennsylvania state line; western terminus of US 40 in Maryland"@en . . "5"^^ . . "Finzel"@en . "Howard"@en . . "Frederick"@en . . . . . . "221.31"^^ . "162.28"^^ . "3"^^ . "63.51"^^ . "180.84"^^ . . "29"^^ . . "67.06999999999999"^^ . . . "24"^^ . . . . . "West" . . "124.15"^^ . . "22"^^ . . . . . . "19"^^ . . "I-695 Exit 15"@en . . "13.9"^^ . . "23.24"^^ . "near Hagerstown"@en . . "yes"@en . . . . . . . . . . . . . . . "73.5"^^ . . . . . . . "East"@en . "76"^^ . . "77"^^ . . . . "72"^^ . . "73"^^ . . . "74"^^ . . "217.43"^^ . "68"^^ . . "79.17"^^ . . "64"^^ . . "Delaware"@en . . . . . . . . . . "Westbound ramps are with MD 948AM"@en . . "U.S. Route 40 (US 40) in the U.S. state of Maryland runs from Garrett County in Western Maryland to Cecil County in the state's northeastern corner. With a total length of 221 miles (356 km), it is the longest numbered highway in Maryland. Almost half of the road overlaps or parallels with Interstate 68 (I-68) or I-70, while the old alignment is generally known as US 40 Alternate, US 40 Scenic, or Maryland Route 144 (MD 144). West of Baltimore, in the Piedmont and Appalachian Mountains / Blue Ridge region of the Western Maryland panhandle of the small state, the portions where it does not overlap an Interstate highway are mostly two-lane roads. The portion northeast of Baltimore going toward Wilmington in northern Delaware and Philadelphia in southeastern Pennsylvania is a four-lane divide"@en . . . "Eastbound exit, westbound entrance"@en . . . "Baltimore"@en . . "80"^^ . "in Baltimore"@en . . "MDSHA, Baltimore DOT, and MDTA"@en . "82"^^ . "US 40 from Martin Boulevard interchange overpass. Left photo from May 1953; right photo from August 2019"@en . "in Frederick"@en . . "173.58"^^ . . . . . "52.84"^^ . . "Two-way ramp between US 40 and MD 43 plus a ramp from westbound US 40 to westbound MD 43"@en . . . . "Bartonsville"@en . . . "Braddock Heights"@en . . "40"^^ . . . . . . . . . . "US"@en . . . . . . . . . . "0"^^ . . . "none"@en . . "Frederick"@en . . . "US 40 highlighted in red"@en . . . . . . . "34.14"^^ . "etc"@en . . "Right-in/right-out interchanges"@en . . . . . . "19.7"^^ . . . . . "187.54"^^ . . . "41"^^ . . "at Pennsylvania border near Keysers Ridge"@en . . "Cloverleaf interchange"@en . . "Officially MD 7C"@en . "29.85"^^ . "356163.92064"^^ . . "Eastbound exit from and westbound entrance to I-70; east end of concurrency with I-70"@en . "Trumpet interchange"@en . . . . . "Havre de Grace"@en . . . . . . "167.31"^^ . . "200.28"^^ . "119.68"^^ . . . . "94.75"^^ . "East end of concurrency with US 219; southern terminus of US 219 Bus."@en . . . . . . . "74.40000000000001"^^ . . "West end of concurrency with US 40 Scenic; High Germany Road is unsigned MD 948Y"@en . . "Washington"@en . "U.S. Route 40 (US 40) in the U.S. state of Maryland runs from Garrett County in Western Maryland to Cecil County in the state's northeastern corner. With a total length of 221 miles (356 km), it is the longest numbered highway in Maryland. Almost half of the road overlaps or parallels with Interstate 68 (I-68) or I-70, while the old alignment is generally known as US 40 Alternate, US 40 Scenic, or Maryland Route 144 (MD 144). West of Baltimore, in the Piedmont and Appalachian Mountains / Blue Ridge region of the Western Maryland panhandle of the small state, the portions where it does not overlap an Interstate highway are mostly two-lane roads. The portion northeast of Baltimore going toward Wilmington in northern Delaware and Philadelphia in southeastern Pennsylvania is a four-lane divided highway, known as the Pulaski Highway (named for American Revolutionary War (1775\u20131783) foreign military volunteer of Polish cavalry officer Casimir Pulaski, 1745\u20131779). This section crosses the Susquehanna River at the north end of the Chesapeake Bay on the Thomas J. Hatem Memorial Bridge. From Cumberland on the western branch of the Potomac River and terminus of the historic Chesapeake and Ohio Canal, west to Pennsylvania, US 40 is the successor to the historic route of the National Road, first Federal interstate road built in the early 19th century which eventually ran from Baltimore west, through Ohio, Indiana and Illinois to Vandalia, then territorial capital of the Illinois Territory near the Mississippi River. East of Cumberland, towards Baltimore, US 40 follows several former private company turnpikes, most notably the Cumberland Turnpike, Baltimore and Frederick-town Turnpike, later known as Frederick Road (MD 144) between Baltimore and Frederick. The route from Baltimore northeast to the Delaware state line follows another historic East Coast / Northeast Corridor routing towards Philadelphia, New York City and Boston including the old Baltimore and Havre-de-Grace Turnpike (now mostly bypassed and known as the Old Philadelphia Road, MD 7)."@en . . . "No exit eastbound; eastbound entrance ramp is from MD 53"@en . "121.82"^^ . "Split into exits 82A , 82B , and 82C eastbound; split into exits 1A and 1B westbound; eastern terminus of I-68; west end of concurrency with I-70"@en . . . . "151.54"^^ . . . . "118.41"^^ . . . "New Market"@en . . "154.13"^^ . . "in Hancock"@en . . . . . "Split into exits 14A and 14B ; west end of concurrencies with I-68 and US 219"@en . . . . . "in Catonsville"@en . . "41.18"^^ . . . . "in Cumberland"@en . . . "Lisbon"@en . "Hagerstown"@en . "Riverside"@en . . . . . . "54.11"^^ . . "Ellicott City"@en . . . . "MD"@en . . "149.42"^^ . "Eastbound exit and entrance"@en . . "205.21"^^ . . "Maryland Avenue"@en . "Right-in/right-out interchanges with Rannells Road eastbound and Hillcrest Drive westbound, which are unsigned MD 952 and MD 952A, respectively"@en . . . . "43.0"^^ . . . . . . . "Split into exits 53A and 53B ; west end of concurrency with I-70"@en . "36.39"^^ . . "I-70 Exit 48; westbound exit, eastbound entrance"@en . "58.64"^^ . . . . . . "Westbound ramps are with Monocacy Boulevard"@en . "Flintstone"@en . . "9002157"^^ . . "White Marsh"@en . "196.13"^^ . "Middle River"@en . "Allegany"@en . "Harford"@en . . "Hancock"@en . "12.18"^^ . "32.24"^^ . "Keyser's Ridge"@en . . "193.93"^^ . "concur"@en . . "Maryland"@en . . . . "9.119999999999999"^^ . . . . "189.21"^^ . . . . "131.75"^^ . . . "81363"^^ . . . "29.12"^^ . . "Frostburg"@en . "Mount Airy"@en . . "West"@en . "Garrett"@en . . "No direct access from eastbound US 40 to westbound US 40 Alternate or from eastbound US 40 Alternate to westbound US 40"@en . . . "35.69"^^ . . . "MD"@en . . . . . . . "3.74"^^ . . "137.19"^^ . . "West end of concurrency with US 220"@en . . . "1926"^^ . . . "Thomas J. Hatem Memorial Bridge Toll Gantry"@en . . . . . . . . "in Ellicott City"@en . . . "Edgewood"@en . "Cumberland"@en . "207.98"^^ . "Signed as exit 46 eastbound; east end of concurrency with US 220"@en . . . . . . . "7"^^ . "75.84999999999999"^^ . "4"^^ . . "Pennsylvania"@en . "11"^^ . . "8"^^ . "9"^^ . . . . "203.41"^^ . "12"^^ . . . . "18"^^ . . . "2019-08-25"^^ . . . . . "22"^^ . "Perryville"@en . . . . . "174.12"^^ . . . "Myersville"@en . . . . . "71.01000000000001"^^ . . . . . . . . "No westbound entrance"@en . . . . . . . . . "821"^^ . . . . . . "split into exits 13A and 13B ; west end of concurrency with US 15"@en . . . "East" . . . . "No entrance westbound; Vocke Road is unsigned MD 658"@en . "Grantsville"@en . . . . . . . "165.93"^^ . . . . . . "111.03"^^ . . . . . . . . .