U.S. Route 40 in Maryland
Encyclopedia
U.S. Route 40 in the U.S. state
of Maryland
runs from western Maryland
to Cecil County
in the state's northeastern corner. With a total length of over 200 miles (321.9 km), it is the longest numbered highway in Maryland. Almost half of the road overlaps
with Interstate 68 or Interstate 70
, while the old alignment is generally known as U.S. Route 40 Alternate, U.S. Route 40 Scenic
, or Maryland Route 144
. West of Baltimore, the portions where it does not overlap an Interstate highway are mostly two-lane roads. The portion east of Baltimore is a four-lane divided highway, known as the Pulaski Highway (named for Casimir Pulaski), except for the two-lane Thomas J. Hatem Memorial Bridge
, a toll bridge
over the Susquehanna River
.
From Cumberland
west to Pennsylvania
, US 40 is the successor to the historic National Road
. East of Cumberland, towards Baltimore
, US 40 follows several former turnpikes, most notably the Cumberland Turnpike and Baltimore and Frederick-town Turnpike. The route from Baltimore northeast to the Delaware
state line follows another historic corridor towards Philadelphia, including the old Baltimore and Havre-de-Grace Turnpike (now mostly bypassed as Maryland Route 7
).
in far western Maryland
's Garrett County
, carrying the name "National Pike." It passes through rural farmland on this side of the state, intersecting U.S. Route 219
at its interchange with Interstate 68
. Here it joins I-68, which it follows to Cumberland
. The previous alignments of US 40, carrying the name "National Pike", are either U.S. Route 40 Alternate or Scenic US 40, which follow I-68 and US 40 very closely through the county and serve as main streets for the towns they pass through. US 40 follows I-68 through Cumberland and passes into Washington County
.
The I-68/US 40 roadway passes through a 340 feet (103.6 m) deep cut in Sideling Hill
. Just to the east of the cut is the site of the former Sideling Hill Exhibit Center, a museum (currently located in Hancock, MD) that highlighted Western Maryland geology. Shortly after this, in Hancock
where the state of Maryland narrows to less than two miles (3 km) across, Interstate 68 ends. US 40 then defaults onto Interstate 70
at Exit 1 of the latter route. U.S. Route 522
is also carried by I-70, but it leaves to the south at the very next exit.
Interstate 70 and US 40 pass close to the West Virginia
border along the Chesapeake and Ohio Canal
and Potomac River
, then turns toward Hagerstown
. Shortly before this, though, US 40 separates from I-70 to the north at exit 9 and passes through the town on Washington Avenue (eastbound) and Franklin Street (westbound), where it interchanges with Interstate 81
. Heading southeast out of Hagerstown, US 40 diverges into two separate routes, US 40 and US 40 Alt. US 40 parallels I-70, its longtime travel partner, crossing it at exit 32 near Greenbrier State Park
on the Baltimore National Pike alignment. US 40 Alt heads southeast on the Old National Pike alignment through Boonsboro
, crossing South Mountain
at Turner's Gap
. The two routes converge just west of Frederick.
In Frederick
, US 40 uses Patrick Street before merging onto the US 15
expressway for a short distance. It leaves US 15 and rejoins I-70 on the outskirts of Frederick. MD 144 once again takes over along the old alignment of US 40. It then passes through Carroll County and Howard County, where US 40 once again separates to the south in Ellicott City
and heads toward Baltimore, interchanging with US 29 and Interstate 695 in the process. This section is known as the Baltimore National Pike.
Inside Baltimore City, US 40 follows Edmondson Avenue, then passes south onto Franklin and Mulberry Streets as a one-way pair
, shortly leaving to utilize the freeway stub meant to carry Interstate 170
for a short distance between Pulaski Street and Martin Luther King Jr. Boulevard. Through this area, an alignment called "Truck US 40" diverts larger vehicles onto an alternate route (largely via North Avenue), and also passes over Martin Luther King, Jr. Boulevard, which leads south to I-395
. US 40 passes through the Mount Vernon neighborhood and a few blocks from Baltimore's Washington Monument
. It then rises onto the Orleans Street Viaduct, passing over Interstate 83 and through the downtown area. It follows Orleans Street until it meets the Pulaski Highway on the east side of the city. It carries this name on this four lane, divided highway alignment, having partial interchanges with Interstate 895 and 95
before exiting the city to the northeast.
US 40, for the entire length of Pulaski Highway, closely parallels I-95
. It also runs between Amtrak
's Northeast Corridor
and the CSX Philadelphia Subdivision. Pulaski Highway passes through Gunpowder Falls State Park
near Joppa
and the Aberdeen Proving Ground
. Between Havre de Grace
and Perryville
it crosses the Susquehanna River
on the Thomas J. Hatem Memorial Bridge
. US 40 leaves Maryland in Elkton
, crossing the border into Delaware.
was opened from Cumberland
on the Potomac River
west and northwest into Pennsylvania
, and beyond to Wheeling, Virginia on the Ohio River
, in the 1810s. The turnpikes
connecting Cumberland to Baltimore operated as the Cumberland Turnpike (Cumberland to Conococheague), Hagers-Town and Conococheague Turnpike (Conococheague to Hagerstown
), Boonsborough Turnpike (Hagerstown to Boonsboro
), and Baltimore and Frederick-town Turnpike (Boonsboro to Baltimore), completed in 1824. To the east of Baltimore, the Baltimore and Havre-de-Grace Turnpike went northeast from Baltimore to Havre de Grace
, and public roads continued from Perryville
, across the Susquehanna River
from Havre de Grace to Elkton
, where the Elk and Christiana Turnpike continued into Delaware
.
U.S. state
A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...
of Maryland
Maryland
Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...
runs from western Maryland
Western Maryland
Western Maryland is the portion of the U.S. state of Maryland that consists of Frederick, Washington, Allegany, and Garrett counties. The region is bounded by the Mason-Dixon line to the north, Preston County, West Virginia to the west, and the Potomac River to the south. There is dispute over the...
to Cecil County
Cecil County, Maryland
Cecil County is a county located in the U.S. state of Maryland. It is part of the Delaware Valley. It was named for Cæcilius Calvert, 2nd Baron Baltimore , who was the first Proprietary Governor of the colony of Maryland from 1632 until his death in 1675. The county seat is Elkton. The newspaper...
in the state's northeastern corner. With a total length of over 200 miles (321.9 km), it is the longest numbered highway in Maryland. Almost half of the road overlaps
Concurrency (road)
A concurrency, overlap, or coincidence in a road network is an instance of one physical road bearing two or more different highway, motorway, or other route numbers...
with Interstate 68 or Interstate 70
Interstate 70 in Maryland
Interstate 70 is a part of the Interstate Highway System that runs from Cove Fort, Utah to Baltimore, Maryland. In Maryland, the Interstate Highway runs from the Pennsylvania state line in Hancock east to the Interstate's eastern terminus near its junction with I-695 at a park and ride in...
, while the old alignment is generally known as U.S. Route 40 Alternate, U.S. Route 40 Scenic
U.S. Route 40 Scenic
U.S. Route 40 Scenic is a scenic route of U.S. Route 40 in the U.S. state of Maryland. US 40 Scenic is the old alignment of US 40 over Town Hill in eastern Allegany County and Sideling Hill in far western Washington County. The highway was originally constructed as part of the National Road in...
, or Maryland Route 144
Maryland Route 144
Maryland Route 144 is a collection of state highways in the U.S. state of Maryland. These highways are sections of old alignment of U.S. Route 40 between Cumberland and Baltimore...
. West of Baltimore, the portions where it does not overlap an Interstate highway are mostly two-lane roads. The portion east of Baltimore is a four-lane divided highway, known as the Pulaski Highway (named for Casimir Pulaski), except for the two-lane Thomas J. Hatem Memorial Bridge
Thomas J. Hatem Memorial Bridge
The Thomas J. Hatem Memorial Bridge is a bridge carrying the traffic across the Susquehanna River on U.S. Route 40 between Havre de Grace and Perryville via Garrett Island in northeast Maryland. It is the oldest of the eight toll facilities operated and maintained by the Maryland Transportation...
, a toll bridge
Toll bridge
A toll bridge is a bridge over which traffic may pass upon payment of a toll, or fee.- History :The practice of collecting tolls on bridges probably harks back to the days of ferry crossings where people paid a fee to be ferried across stretches of water. As boats became impractical to carry large...
over the Susquehanna River
Susquehanna River
The Susquehanna River is a river located in the northeastern United States. At long, it is the longest river on the American east coast that drains into the Atlantic Ocean, and with its watershed it is the 16th largest river in the United States, and the longest river in the continental United...
.
From Cumberland
Cumberland, Maryland
Cumberland is a city in the far western, Appalachian portion of Maryland, United States. It is the county seat of Allegany County, and the primary city of the Cumberland, MD-WV Metropolitan Statistical Area. At the 2010 census, the city had a population of 20,859, and the metropolitan area had a...
west to Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
, US 40 is the successor to the historic National Road
National Road
The National Road or Cumberland Road was the first major improved highway in the United States to be built by the federal government. Construction began heading west in 1811 at Cumberland, Maryland, on the Potomac River. It crossed the Allegheny Mountains and southwestern Pennsylvania, reaching...
. East of Cumberland, towards Baltimore
Baltimore
Baltimore is the largest independent city in the United States and the largest city and cultural center of the US state of Maryland. The city is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay. Baltimore is sometimes referred to as Baltimore...
, US 40 follows several former turnpikes, most notably the Cumberland Turnpike and Baltimore and Frederick-town Turnpike. The route from Baltimore northeast to the Delaware
Delaware
Delaware is a U.S. state located on the Atlantic Coast in the Mid-Atlantic region of the United States. It is bordered to the south and west by Maryland, and to the north by Pennsylvania...
state line follows another historic corridor towards Philadelphia, including the old Baltimore and Havre-de-Grace Turnpike (now mostly bypassed as Maryland Route 7
Maryland Route 7
Maryland Route 7 is a collection of state highways in the U.S. state of Maryland. These highways are sections of old alignment of U.S. Route 40 between Baltimore and Elkton that were bypassed when US 40 was moved to Pulaski Highway, a four-lane divided highway, in the late 1930s and early 1940s...
).
Route description
U.S. Route 40 enters Maryland from PennsylvaniaPennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
in far western Maryland
Western Maryland
Western Maryland is the portion of the U.S. state of Maryland that consists of Frederick, Washington, Allegany, and Garrett counties. The region is bounded by the Mason-Dixon line to the north, Preston County, West Virginia to the west, and the Potomac River to the south. There is dispute over the...
's Garrett County
Garrett County, Maryland
Garrett County is the westernmost county of the U.S. state of Maryland. Created from Allegany County, Maryland in 1872 it was the last Maryland county to be formed. It was named for John Work Garrett , railroad executive, industrialist, and financier. Garrett served as president of the Baltimore...
, carrying the name "National Pike." It passes through rural farmland on this side of the state, intersecting U.S. Route 219
U.S. Route 219 in Maryland
U.S. Route 219 is a part of the U.S. Highway System that runs from Rich Creek, Virginia to West Seneca, New York. In the U.S. state of Maryland, the federal highway runs from the West Virginia state line near Red House to the Pennsylvania state line near Grantsville...
at its interchange with Interstate 68
Interstate 68
Interstate 68 is a Interstate highway in the U.S. states of West Virginia and Maryland, connecting in Morgantown to in Hancock. is also Corridor E of the Appalachian Development Highway System. From 1965 until the freeway's construction was completed in 1991, it was designated as...
. Here it joins I-68, which it follows to Cumberland
Cumberland, Maryland
Cumberland is a city in the far western, Appalachian portion of Maryland, United States. It is the county seat of Allegany County, and the primary city of the Cumberland, MD-WV Metropolitan Statistical Area. At the 2010 census, the city had a population of 20,859, and the metropolitan area had a...
. The previous alignments of US 40, carrying the name "National Pike", are either U.S. Route 40 Alternate or Scenic US 40, which follow I-68 and US 40 very closely through the county and serve as main streets for the towns they pass through. US 40 follows I-68 through Cumberland and passes into Washington County
Washington County, Maryland
Washington County is a county located in the western part of the U.S. state of Maryland, bordering southern Pennsylvania to the north, northern Virginia to the south, and the Eastern Panhandle of West Virginia to the south and west. As of the 2010 Census, its population is 147,430...
.
The I-68/US 40 roadway passes through a 340 feet (103.6 m) deep cut in Sideling Hill
Sideling Hill
Sideling Hill is a long, steep, narrow mountain ridge in the Ridge-and-Valley physiographic province of the Appalachian Mountains, located in Washington County in western Maryland and adjacent West Virginia and Pennsylvania, USA...
. Just to the east of the cut is the site of the former Sideling Hill Exhibit Center, a museum (currently located in Hancock, MD) that highlighted Western Maryland geology. Shortly after this, in Hancock
Hancock, Maryland
Hancock is a town in Washington County, Maryland, United States. The population was 1,725 at the 2000 census. The Western Maryland community is notable for being located at the narrowest part of the state...
where the state of Maryland narrows to less than two miles (3 km) across, Interstate 68 ends. US 40 then defaults onto Interstate 70
Interstate 70 in Maryland
Interstate 70 is a part of the Interstate Highway System that runs from Cove Fort, Utah to Baltimore, Maryland. In Maryland, the Interstate Highway runs from the Pennsylvania state line in Hancock east to the Interstate's eastern terminus near its junction with I-695 at a park and ride in...
at Exit 1 of the latter route. U.S. Route 522
U.S. Route 522 in Maryland
U.S. Route 522 is a part of the U.S. Highway System that runs from Powhatan, Virginia to Selinsgrove, Pennsylvania. In Maryland, it runs from the West Virginia state line at the Potomac River north to the Pennsylvania state line within Hancock in western Washington County...
is also carried by I-70, but it leaves to the south at the very next exit.
Interstate 70 and US 40 pass close to the West Virginia
West Virginia
West Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
border along the Chesapeake and Ohio Canal
Chesapeake and Ohio Canal
The Chesapeake and Ohio Canal, abbreviated as the C&O Canal, and occasionally referred to as the "Grand Old Ditch," operated from 1831 until 1924 parallel to the Potomac River in Maryland from Cumberland, Maryland to Washington, D.C. The total length of the canal is about . The elevation change of...
and Potomac River
Potomac River
The Potomac River flows into the Chesapeake Bay, located along the mid-Atlantic coast of the United States. The river is approximately long, with a drainage area of about 14,700 square miles...
, then turns toward Hagerstown
Hagerstown, Maryland
Hagerstown is a city in northwestern Maryland, United States. It is the county seat of Washington County, and, by many definitions, the largest city in a region known as Western Maryland. The population of Hagerstown city proper at the 2010 census was 39,662, and the population of the...
. Shortly before this, though, US 40 separates from I-70 to the north at exit 9 and passes through the town on Washington Avenue (eastbound) and Franklin Street (westbound), where it interchanges with Interstate 81
Interstate 81 in Maryland
Interstate 81 is a part of the Interstate Highway System that runs from Dandridge, Tennessee to Fishers Landing, New York. In Maryland, the Interstate highway runs from the West Virginia state line at the Potomac River in Williamsport north to the Pennsylvania state line near Maugansville...
. Heading southeast out of Hagerstown, US 40 diverges into two separate routes, US 40 and US 40 Alt. US 40 parallels I-70, its longtime travel partner, crossing it at exit 32 near Greenbrier State Park
Greenbrier State Park
Greenbrier State Park is a Maryland state park on South Mountain in Washington County.-External links:* - official site...
on the Baltimore National Pike alignment. US 40 Alt heads southeast on the Old National Pike alignment through Boonsboro
Boonsboro, Maryland
Boonsboro is a town in Washington County, Maryland, United States, located at the foot of South Mountain. It nearly borders Frederick County and is proximate to the Antietam National Battlefield...
, crossing South Mountain
South Mountain (Maryland and Pennsylvania)
South Mountain is the northern extension of the Blue Ridge Mountain range in Maryland and Pennsylvania. From the Potomac River near Knoxville, Maryland in the south, to Dillsburg, Pennsylvania in the north, the long range separates the Hagerstown and Cumberland valleys from the Piedmont regions of...
at Turner's Gap
Turner's Gap
Turner's Gap is a wind gap in the South Mountain Range of the Blue Ridge Mountains, located in Frederick County and Washington County, Maryland. The gap is traversed by U.S. Route 40 Alt, the Old National Pike. The Appalachian Trail also crosses the gap....
. The two routes converge just west of Frederick.
In Frederick
Frederick, Maryland
Frederick is a city in north-central Maryland. It is the county seat of Frederick County, the largest county by area in the state of Maryland. Frederick is an outlying community of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area, which is part of a greater...
, US 40 uses Patrick Street before merging onto the US 15
U.S. Route 15 in Maryland
U.S. Route 15 is a part of the U.S. Highway System that runs from Walterboro, South Carolina to Painted Post, New York. In Maryland, the highway runs from the Virginia state line at the Potomac River in Point of Rocks north to the Pennsylvania state line near Emmitsburg. US 15 is...
expressway for a short distance. It leaves US 15 and rejoins I-70 on the outskirts of Frederick. MD 144 once again takes over along the old alignment of US 40. It then passes through Carroll County and Howard County, where US 40 once again separates to the south in Ellicott City
Ellicott City, Maryland
Ellicott City is an unincorporated community and census-designated place in Howard County, Maryland, United States. It is part of the Baltimore-Washington Metropolitan Area. The population was 65,834 at the 2010 census. It is the county seat of Howard County...
and heads toward Baltimore, interchanging with US 29 and Interstate 695 in the process. This section is known as the Baltimore National Pike.
Inside Baltimore City, US 40 follows Edmondson Avenue, then passes south onto Franklin and Mulberry Streets as a one-way pair
One-way pair
A one-way pair, one-way couple, or just couplet is a pair of parallel, usually one-way streets that carry opposite directions of a signed route or major traffic flow, or sometimes opposite directions of a bus or streetcar route....
, shortly leaving to utilize the freeway stub meant to carry Interstate 170
Interstate 170 (Maryland)
Interstate 170 is the former designation for a freeway in Baltimore, Maryland that is now designated as part of US 40...
for a short distance between Pulaski Street and Martin Luther King Jr. Boulevard. Through this area, an alignment called "Truck US 40" diverts larger vehicles onto an alternate route (largely via North Avenue), and also passes over Martin Luther King, Jr. Boulevard, which leads south to I-395
Interstate 395 (Maryland)
Interstate 395 is an Interstate Highway in the U.S. state of Maryland. Known as Cal Ripken Way, the highway runs from I-95 north to Howard Street and Camden Street in Baltimore. I-395 is a spur that heads north from I-95 over the Middle Branch of the Patapsco River toward Downtown Baltimore,...
. US 40 passes through the Mount Vernon neighborhood and a few blocks from Baltimore's Washington Monument
Washington Monument (Baltimore)
The Washington Monument in the elegant Mount Vernon neighborhood of Baltimore, Maryland was the first architectural monument planned to honor George Washington.-History:...
. It then rises onto the Orleans Street Viaduct, passing over Interstate 83 and through the downtown area. It follows Orleans Street until it meets the Pulaski Highway on the east side of the city. It carries this name on this four lane, divided highway alignment, having partial interchanges with Interstate 895 and 95
Interstate 95 in Maryland
Interstate 95 in Maryland is a major highway that runs diagonally from northeast to southwest, from Maryland's border with Delaware, to the Woodrow Wilson Bridge, briefly entering the District of Columbia before reaching Virginia...
before exiting the city to the northeast.
US 40, for the entire length of Pulaski Highway, closely parallels I-95
Interstate 95 in Maryland
Interstate 95 in Maryland is a major highway that runs diagonally from northeast to southwest, from Maryland's border with Delaware, to the Woodrow Wilson Bridge, briefly entering the District of Columbia before reaching Virginia...
. It also runs between Amtrak
Amtrak
The National Railroad Passenger Corporation, doing business as Amtrak , is a government-owned corporation that was organized on May 1, 1971, to provide intercity passenger train service in the United States. "Amtrak" is a portmanteau of the words "America" and "track". It is headquartered at Union...
's Northeast Corridor
Northeast Corridor
The Northeast Corridor is a fully electrified railway line owned primarily by Amtrak serving the Northeast megalopolis of the United States from Boston in the north, via New York to Washington, D.C. in the south, with branches serving other cities...
and the CSX Philadelphia Subdivision. Pulaski Highway passes through Gunpowder Falls State Park
Gunpowder Falls State Park
Gunpowder Falls State Park is an park in northwestern Baltimore County and eastern Harford County, Maryland. It is primarily made up of the stream valleys of the Big and Little Gunpowder Falls and the Gunpowder River, and boasts over 100 miles of trails. All areas of the park are convenient to the...
near Joppa
Joppa, Maryland
Joppa, Maryland in Harford County, Maryland is now a planning region for the county, but there was originally a town at the center called Joppa. Joppa was founded as a British colonial settlement in the early 18th century, and takes its name from the biblical town of Joppa .The town of Joppa on...
and the Aberdeen Proving Ground
Aberdeen Proving Ground
Aberdeen Proving Ground is a United States Army facility located near Aberdeen, Maryland, . Part of the facility is a census-designated place , which had a population of 3,116 at the 2000 census.- History :...
. Between Havre de Grace
Havre de Grace, Maryland
Havre de Grace is a city in Harford County, Maryland, United States. Located at the mouth of the Susquehanna River and the head of the Chesapeake Bay, Havre de Grace is named after the port city of Le Havre, France, which was first named Le Havre de Grâce, meaning in French "Harbor of Grace." As...
and Perryville
Perryville, Maryland
Perryville is a town in Cecil County, Maryland, United States. The population was 3,672 at the 2000 census. The town is located off Interstate 95, on the north side of the mouth of the Susquehanna River.-History:...
it crosses the Susquehanna River
Susquehanna River
The Susquehanna River is a river located in the northeastern United States. At long, it is the longest river on the American east coast that drains into the Atlantic Ocean, and with its watershed it is the 16th largest river in the United States, and the longest river in the continental United...
on the Thomas J. Hatem Memorial Bridge
Thomas J. Hatem Memorial Bridge
The Thomas J. Hatem Memorial Bridge is a bridge carrying the traffic across the Susquehanna River on U.S. Route 40 between Havre de Grace and Perryville via Garrett Island in northeast Maryland. It is the oldest of the eight toll facilities operated and maintained by the Maryland Transportation...
. US 40 leaves Maryland in Elkton
Elkton, Maryland
The town of Elkton is the county seat of Cecil County, Maryland, United States. The population was 11,893 as of the 2000 census and 14,842 according to current July 2008 census estimates. It is the county seat of Cecil County...
, crossing the border into Delaware.
History
The National RoadNational Road
The National Road or Cumberland Road was the first major improved highway in the United States to be built by the federal government. Construction began heading west in 1811 at Cumberland, Maryland, on the Potomac River. It crossed the Allegheny Mountains and southwestern Pennsylvania, reaching...
was opened from Cumberland
Cumberland, Maryland
Cumberland is a city in the far western, Appalachian portion of Maryland, United States. It is the county seat of Allegany County, and the primary city of the Cumberland, MD-WV Metropolitan Statistical Area. At the 2010 census, the city had a population of 20,859, and the metropolitan area had a...
on the Potomac River
Potomac River
The Potomac River flows into the Chesapeake Bay, located along the mid-Atlantic coast of the United States. The river is approximately long, with a drainage area of about 14,700 square miles...
west and northwest into Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
, and beyond to Wheeling, Virginia on the Ohio River
Ohio River
The Ohio River is the largest tributary, by volume, of the Mississippi River. At the confluence, the Ohio is even bigger than the Mississippi and, thus, is hydrologically the main stream of the whole river system, including the Allegheny River further upstream...
, in the 1810s. The turnpikes
Toll road
A toll road is a privately or publicly built road for which a driver pays a toll for use. Structures for which tolls are charged include toll bridges and toll tunnels. Non-toll roads are financed using other sources of revenue, most typically fuel tax or general tax funds...
connecting Cumberland to Baltimore operated as the Cumberland Turnpike (Cumberland to Conococheague), Hagers-Town and Conococheague Turnpike (Conococheague to Hagerstown
Hagerstown, Maryland
Hagerstown is a city in northwestern Maryland, United States. It is the county seat of Washington County, and, by many definitions, the largest city in a region known as Western Maryland. The population of Hagerstown city proper at the 2010 census was 39,662, and the population of the...
), Boonsborough Turnpike (Hagerstown to Boonsboro
Boonsboro, Maryland
Boonsboro is a town in Washington County, Maryland, United States, located at the foot of South Mountain. It nearly borders Frederick County and is proximate to the Antietam National Battlefield...
), and Baltimore and Frederick-town Turnpike (Boonsboro to Baltimore), completed in 1824. To the east of Baltimore, the Baltimore and Havre-de-Grace Turnpike went northeast from Baltimore to Havre de Grace
Havre de Grace, Maryland
Havre de Grace is a city in Harford County, Maryland, United States. Located at the mouth of the Susquehanna River and the head of the Chesapeake Bay, Havre de Grace is named after the port city of Le Havre, France, which was first named Le Havre de Grâce, meaning in French "Harbor of Grace." As...
, and public roads continued from Perryville
Perryville, Maryland
Perryville is a town in Cecil County, Maryland, United States. The population was 3,672 at the 2000 census. The town is located off Interstate 95, on the north side of the mouth of the Susquehanna River.-History:...
, across the Susquehanna River
Susquehanna River
The Susquehanna River is a river located in the northeastern United States. At long, it is the longest river on the American east coast that drains into the Atlantic Ocean, and with its watershed it is the 16th largest river in the United States, and the longest river in the continental United...
from Havre de Grace to Elkton
Elkton, Maryland
The town of Elkton is the county seat of Cecil County, Maryland, United States. The population was 11,893 as of the 2000 census and 14,842 according to current July 2008 census estimates. It is the county seat of Cecil County...
, where the Elk and Christiana Turnpike continued into Delaware
Delaware
Delaware is a U.S. state located on the Atlantic Coast in the Mid-Atlantic region of the United States. It is bordered to the south and west by Maryland, and to the north by Pennsylvania...
.
Future
The US 40 bridge over the Patapsco River in Ellicott City, originally constructed in 1936, will be replaced in a project that started in the spring of 2011 and is expected to be completed in 2013. During the bridge replacement, temporary bridges will be constructed to serve traffic for the first time in a major bridge project in Maryland.Junction list
| County | Location | Mile | Intersection | Notes |
|---|---|---|---|---|
| Garrett Garrett County, Maryland Garrett County is the westernmost county of the U.S. state of Maryland. Created from Allegany County, Maryland in 1872 it was the last Maryland county to be formed. It was named for John Work Garrett , railroad executive, industrialist, and financier. Garrett served as president of the Baltimore... (21.70 mi) |
Keysers Ridge Keysers Ridge, Maryland Keysers Ridge is an unincorporated area in northern Garrett County, Maryland. It lies to the west of Grantsville on Interstate 68 and is bounded to the northwest by the Savage River State Forest. It is primarily known for its key location on Interstate 68 and U.S. Route 40... |
0.00 | Pennsylvania state line | |
| 3.25 | MD 826H | |||
| 3.41 | ||||
| Grantsville Grantsville, Maryland Grantsville is a town in Garrett County, Maryland, United States. The population was 619 at the 2000 census.-History:Grantsville, 1/2 mile west of the Casselman River, began as a small Amish and Mennonite settlement, called Tomlinson's or Little Crossing, along Braddock rd., which wound westward... |
3.74 | I-68/US 219 overlap begins; exit 14B of I-68 | ||
| See Interstate 68 (67.27-mile overlap); Interstate 70 (8.16-mile overlap) | ||||
| Allegany Allegany County, Maryland Allegany County is a county located in the northwestern part of the US state of Maryland. It is part of the Cumberland, MD-WV Metropolitan Statistical Area. As of 2010, the population was 75,087. Its county seat is Cumberland... (40.27 mi) |
||||
| Washington Washington County, Maryland Washington County is a county located in the western part of the U.S. state of Maryland, bordering southern Pennsylvania to the north, northern Virginia to the south, and the Eastern Panhandle of West Virginia to the south and west. As of the 2010 Census, its population is 147,430... (45.95 mi) |
||||
| Park Head | 79.17 | I-70 overlap ends Exit 9 of I-70 |
||
| Clear Spring Clear Spring, Maryland Clear Spring is a town in Washington County, Maryland, United States. The population was 461 as of the 2008 United States Census Bureau estimates.-Geography:Clear Spring is located at .... |
86.57 | |||
| 88.97 | ||||
| 93.51 | ||||
| 94.75 | ||||
| 96.23 | Exit 6 of I-81 | |||
| 96.61 | MD 910C | |||
| Hagerstown Hagerstown, Maryland Hagerstown is a city in northwestern Maryland, United States. It is the county seat of Washington County, and, by many definitions, the largest city in a region known as Western Maryland. The population of Hagerstown city proper at the 2010 census was 39,662, and the population of the... |
97.63 | |||
| 98.05 | Potomac Street | To US 40 Alt. east; to MD 65 south; from MD 60 south | ||
| 98.20 | Locust Street | To MD 60 north; from US 40 Alt. west; from MD 65 north | ||
| 98.68 | ||||
| Beaver Creek Beaver Creek, Maryland Beaver Creek is an unincorporated community in eastern Washington County, Maryland, United States. It is located southeast of Hagerstown and north of Boonsboro near U.S. Route 40 and Maryland Route 66... |
101.72 | Exit 32 of I-70 | ||
| 104.53 | ||||
| Frederick Frederick County, Maryland Frederick County is a county located in the western part of the U.S. state of Maryland, bordering the southern border of Pennsylvania and the northeastern border of Virginia. As of the 2010 Census, the population was 233,385.... (29.24 mi) |
111.03 | |||
| 118.41 | Exit 48 of I-70 | |||
| Frederick Frederick, Maryland Frederick is a city in north-central Maryland. It is the county seat of Frederick County, the largest county by area in the state of Maryland. Frederick is an outlying community of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area, which is part of a greater... |
119.70 |   US 40 Alt. west (Old National Pike) |
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| 121.09 | ; Patrick Street east | US 15 overlap begins Exit 13 of US 15; to MD 144 east via Patrick Street |
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| 121.82 | ; US 15B north (Jefferson Street) | US 15 overlap ends; exit 12B of US 15 | ||
| 122.44 | I-70 overlap begins; exit 53B of I-70; exit 32 of I-270 | |||
| See Interstate 70 (29.10-mile overlap) | ||||
| Carroll Carroll County, Maryland Carroll County is a county located in the U.S. state of Maryland. In 2010, its population was 167,134. It was named for Charles Carroll of Carrollton , signer of the American Declaration of Independence. Its county seat is Westminster.... (1.61 mi) |
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| Howard Howard County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:... (21.08 mi) |
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| 151.54 | I-70 overlap ends; exit 82 of I-70 | |||
| 154.13 | ||||
| Ellicott City Ellicott City, Maryland Ellicott City is an unincorporated community and census-designated place in Howard County, Maryland, United States. It is part of the Baltimore-Washington Metropolitan Area. The population was 65,834 at the 2010 census. It is the county seat of Howard County... |
157.10 | Exit 24 of US 29 | ||
| 158.05 | ||||
| Baltimore (3.98 mi) |
Catonsville Catonsville, Maryland According to the United States Census Bureau, the CDP has a total area of , all of it land.-Demographics:In 2010 Catonsville had a population of 41,567... |
162.29 | Exit 15 of I-695 | |
| Baltimore City (10.05 mi) |
165.93 | |||
| 167.31 167.41 |
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| 168.36 | Martin Luther King Jr. Boulevard | |||
| 168.57 168.64 |
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| 169.09 169.18 |
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| 171.86 | ||||
| 172.59 | ||||
| 172.84 | Exit 13 of I-895 | |||
| 173.58 | Moravia Road west | |||
| 173.76 | Exit 61 of I-95 | |||
| Baltimore (11.54 mi) |
Rosedale Rosedale, Maryland Rosedale is an unincorporated community and a census-designated place in Baltimore County, Maryland, United States. The population was 19,199 at the 2000 census.- History :... |
173.94 | MD 7BA | |
| 174.12 | ||||
| Rossville Rossville, Maryland Rossville is an unincorporated community and a census-designated place in Baltimore County, Maryland, United States. The population was 11,515 at the 2000 census.-Geography:Rossville is located at .... |
176.63 | Exit 35 of I-695 | ||
| 177.96 | ||||
| White Marsh White Marsh, Maryland White Marsh is an unincorporated community and a census-designated place in Baltimore County, Maryland, United States. The population was 8,485 at the 2000 census.- History :... |
180.84 | |||
| Harford (18.61 mi) |
187.54 | |||
| 189.21 | ||||
| 189.78 | MD 24D, to MD 24 | |||
| 193.81 | ||||
| 196.13 | ||||
| Aberdeen | 196.94 | |||
| 198.52 | ||||
| 199.03 | ||||
| 200.28 | ||||
| 201.72 | ||||
| Havre de Grace | 203.10 | |||
| 204.03 | Thomas J. Hatem Memorial Bridge Thomas J. Hatem Memorial Bridge The Thomas J. Hatem Memorial Bridge is a bridge carrying the traffic across the Susquehanna River on U.S. Route 40 between Havre de Grace and Perryville via Garrett Island in northeast Maryland. It is the oldest of the eight toll facilities operated and maintained by the Maryland Transportation... over the Susquehanna River Susquehanna River The Susquehanna River is a river located in the northeastern United States. At long, it is the longest river on the American east coast that drains into the Atlantic Ocean, and with its watershed it is the 16th largest river in the United States, and the longest river in the continental United... |
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| Cecil (17.28 mi) |
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| Perryville | 205.21 | |||
| 207.98 | ||||
| 208.45 | ||||
| North East | 212.33 | |||
| Elkton | 217.43 | |||
| 218.91 | ||||
| 220.25 | ||||
| 221.08 | ||||
| 221.31 | Delaware state line | |||