U.S. Route 40 in Maryland
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U.S. Route 40 in Maryland

U.S. Route 40 marker

U.S. Route 40
Route information
Maintained by MDSHA, Baltimore DOT, and MDTA
Length221.31 mi[1][2] (356.16 km)
Historic National Road
Journey Through Hallowed Ground Byway
Chesapeake and Ohio Canal Scenic Byway
Antietam Campaign Scenic Byway
Major junctions
West end at Pennsylvania border near Keysers Ridge
  / near Grantsville

in Cumberland
/ in Hancock
near Hagerstown
/ in Frederick
/ in Frederick
near Ellicott City
in Catonsville
in Baltimore

in Baltimore
East end at Delaware border in Elkton
CountiesGarrett, Allegany, Washington, Frederick, Carroll, Howard, Baltimore, City of Baltimore, Harford, Cecil
Highway system

U.S. Route 40 (US 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 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 to Wilmington, in northern Delaware and Philadelphia in southeastern Pennsylvania before crossing the Susquehanna River at the north end of the Chesapeake Bay, is a four-lane divided highway, known as the Pulaski Highway (named for American Revolutionary War (1775-1783) foreign military volunteer of Polish cavalry officer Casimir Pulaski, 1745-1779).

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).

Route description

A 340-foot (100 m) deep cut in Sideling Hill makes room for the I-68/US 40 roadway

Garrett and Allegany counties

U.S. Route 40 enters Maryland from Pennsylvania 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 in Accident. U.S. Route 40 shares the roadway with U.S. Route 219 until it joins I-68 (built during 1971-73 as the "National Freeway") traveling eastward towards Cumberland.

US 40/I-68 passes into Allegany County just west of Frostburg. The highway traverses historic "Cumberland Narrows" mountain gap to the county seat and major western Maryland city of Cumberland (nicknamed the "Queen City"). The previous alignments of US 40, carrying the name "National Pike", are either U.S. Route 40 Alternate or Scenic US 40, which parallel I-68 and US 40 very closely through the County (and later also carrying the designation of Maryland Route 144 (MD 144) and serve as main streets for the various towns and small cities they pass through, trailing the continued historic route of the 1808's Old National Road extension from Cumberland to Baltimore turnpike, which will still have many of the original 19th Century stone milestones every mile on the north side with five-mile stone markers with more elaborate carvings indicating mileage and distance to destinations. Since, the mid 2000s, The National Road now has a multi-state tourism/historical partnership and association collaborating various towns, cities and counties through which it passes from Baltimore to Vandalia, the original territorial capital of Illinois near the Mississippi River. Also several significant histories and guide books have been published throughout the 20th Century to describe its features, hazards and attractions plus historic/scenic sites. US 40 follows I-68 through Cumberland on an elevated highway through the western reaches of the Potomac River valley dividing the historic town, site of Colonel George Washington's Fort Cumberland of the French and Indian War era.

Washington and Frederick counties

At the Sideling Hill Creek Bridge, I-68/US 40 passes into Washington County, just west of Bellegrove, Maryland. The I-68/US 40 roadway later passes through a 340-foot (100 m) massive deep cut in Sideling Hill. Just to the east of the cut is the site of the former "Sideling Hill Exhibit Center", a state museum (currently located in Hancock in the "narrow neck" of Maryland) that highlighted the many varied rock layers of Western Maryland mountain geology in "The Cut".[3] Shortly after this, in the town of Hancock where the State of Maryland narrows to less than two miles (3 km) long, on a steep valley slope carrying parallel highways, roads and railroad tracks (historic Baltimore and Ohio Railroad (now Amtrak and CSX plus Conrail freight rail systems) between the Mason-Dixon line with Pennsylvania to the north and the western branch of the Potomac River boundary with West Virginia. Interstate 68 ends at the I-70/US-522 interchange, and US 40 defaults onto Interstate 70 at Exit 1 of the latter route, coming down from the northwest at the large truck stop plazas at Breezewood, Pennsylvania. U.S. Route 522 is also carried by I-70, but it leaves to the south at the very next exit.

View west along I-70 and US 40 in western Washington County

Interstate 70 and US 40 pass close to the West Virginia border along the historic old 1820s-30s era Chesapeake and Ohio Canal and its Potomac River, then turns toward Hagerstown and Washington County. Shortly before this, though, US 40 separates from I-70 to the north at exit 9 and passes through the town and county seat (known as the "Hub City") 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 (Dual Highway) and US 40 Alt. US 40 parallels Interstate 70, its longtime, cross-country travel partner, crossing it again at exit 32 near Greenbrier State Park on the older Baltimore National Pike alignment. US 40 Alt (also known as Maryland Route 144 heads southeast on the historic Old National Pike of 1805 alignment through Boonsboro, crossing the famous South Mountain at "Turner's Gap", with its notable American Civil War battles here and at nearby "Crampton's Gap and "Fox's Gap" where Confederate forces under General Robert E. Lee held back oncoming Union armies under General George B. McClellan just prior to the horrific Battle of Antietam in September 1862. The two highway routes converge just west of the "City of Clustered Spires", Frederick which is also the site of several major Civil War conflicts, such as the 1862 first Southern Invasion (resulting in "Battle of Antietam"), the 1863 second passing of the huge armies on their way to Pennsylvania to collide at Gettysburg and the nearby "Battle of Monocacy", "The Battle That Saved Washington" in 1864's third Confederate Invasion.

View east along the cancelled I-170 (now US 40) in Baltimore City

US 40 enters Frederick County in Myersville, Maryland. The road passes through South Mountain, and goes underneath I-70 with no access. US 40 continues traveling in a southwesterly direction, running through the towns of Myersville and Arch Bridge. In Frederick, US 40 uses Patrick Street (the main west-east route through Frederick's historic downtown), before merging back onto the US 15 north-south expressway for a short distance. It leaves US 15 and rejoins I-70 on the southern and eastern outskirts of Frederick. Old MD 144 on the 19th Century's Old National Road once again takes over along the old 1920s era alignment of US 40.

Carroll and Howard counties

I-70/US 40 runs shortly through Carroll County in Mount Airy, Maryland, interchanging with Maryland Route 27. The highway crosses over the South Branch Patapsco River Bridge, where it leaves Carroll County.

US 40 continues to share the road with I-70 for some time passing through rural Howard County, until it splits into the Baltimore National Pike in western Ellicott City, Maryland. Once again, the road separates with the old National Road pathway carrying MD 144 routes to the southeastward towards historic Ellicott City and US 40 continues to the north. The Howard County section of "Baltimore National Pike" features a large commercial shopping district, as well as numerous restaurants. In December 2016, Governor Larry Hogan designated a portion of US 40 as "Korean Way", paying homage to the many Korean American businesses and residents of the county.[4] A major interchange with US 29 connects US 40 with the destinations of Columbia and Washington, D.C., as well as an express route to I-70 towards Baltimore and Towson.

After passing over the upper northern reaches of the Patapsco River valley and crossing the bridge over Patapsco Valley State Park entering Baltimore County before in Ellicott City, a former colonial port and one of the state's "Antiques Capital" as the Patapsco River courses through a deep valley with the town perched on surrounding steep sides.

Baltimore City and County

US 40 heads toward Baltimore, interchanging with the Interstate 695 (Baltimore Beltway). This section of the "Baltimore National Pike" traverses Catonsville's commercial strip of shopping centers and varieties of car dealerships and fast-food restaurants as it crosses the 1919 Baltimore city limits near Security Boulevard and the massive national headquarters of the Social Security Administration.

View east along US 40 in downtown Baltimore City

Inside Baltimore City, US 40 continues as Baltimore National Pike changes into Edmondson Avenue, where it heads through urban areas and passes north of Edmondson-Westside High School. The route passes southeastward onto West Franklin and West Mulberry Streets as a one-way pair, bypassing Gwynns Falls-Leakin Parks (which escaped having the interstate cut through its wilderness wooded stream valleys in the 1970s after a heated decade-long public debate and battle), before shortly leaving to utilize the former expressway stub originally meant to continue to carry Interstate 170 for a short distance between Pulaski Street and the Martin Luther King, Jr. Boulevard. Through this area, an alignment called "Truck US 40" diverts larger vehicles onto an alternate cross-town route (largely via North Avenue and U.S. Route 1). The I-170 expressway stub (long-time nicknamed the "Highway to Nowhere") also carries US 40 over Martin Luther King, Jr. Boulevard, rejoining West Franklin Street and West Mulberry Street just west of North Greene and North Paca Streets, both of which are the northern terminus of MD 295, which eventually become Russell Street leading to the Baltimore-Washington Parkway. US 40 passes through the Seton Hill Historic District and the tony 19th Century historic Mount Vernon-Belvedere neighborhood and a few blocks south from Baltimore's landmark Washington Monument, (built 1815-1827). Just beyond historic main Charles Street and Saint Paul Street and Place, now East Franklin and Mulberry Streets merge through the "Preston Gardens" district onto the six-lane elevated Orleans Street Viaduct, which is 2,075 feet long and 54 feet wide, opened December 1935, which US 40 uses to cross the downtown Jones Falls stream valley, (a former main railroad route for the old Western Maryland Railway, Northern Central Railroad and the Maryland and Pennsylvania Railroad on parallel lines to downtown), passing over Interstate 83 (the Jones Falls Expressway) in the process (with no access) towards East Baltimore. It follows the divided Orleans Street, passing south of Paul Laurence Dunbar High School and through the campus of The Johns Hopkins Hospital (1889), where it narrows to an undivided four lanes, until its end at Pulaski Highway on the east side of the city. US 40 carries this name on this four lane, divided highway alignment, heading northeastward having a full cloverleaf interchange with MD 151 at Erdman Avenue, which leads to the Baltimore city limits again on the eastside again re-entering Baltimore County towards North Point Boulevard and parallel Old North Point Road and with partial interchanges with Interstate 895, Moravia Road, and Interstate 95 before exiting the city, bearing northeast and meeting I-695 of the Baltimore (McKeldin) Beltway again.

US 40 in Aberdeen

US 40, for the entire length of Pulaski Highway, is closely paralleled by I-95. It also runs between Amtrak's Northeast Corridor and CSX's Philadelphia Subdivision railroad lines, while US 40's previous alignment, MD 7, parallels the highway in segments. Pulaski Highway acts as a major artery for much of Eastern Baltimore County, especially in the population centers of Rosedale, Essex, Middle River, and White Marsh. The roadway has another interchange with the Baltimore Beltway at The Centre at Golden Ring (old Golden Ring Mall). Additional major intersections include Maryland Route 700 (Martin Boulevard) and Maryland Route 43 (White Marsh Boulevard).

Harford and Cecil counties

Pulaski Highway passes over Little Gunpowder Falls through Gunpowder Falls State Park near Joppa into Harford County. The roadway continues along the western shore of the Chesapeake Bay through the cities of Edgewood, Abingdon, and Aberdeen. The Aberdeen Proving Ground is accessed by several routes intersecting with Pulaski Highway, including Maryland Route 715 (Short Lane) and Maryland Route 22 (Aberdeen Thruway). Lastly, the highway bypasses the city of Havre de Grace, splitting with Revolution Street, which provides access to the Downtown Historic District.

US 40 westbound past MD 781 in Elkton

Between Havre de Grace on the southwest shore and Perryville to the northeast, it crosses the Susquehanna River on the tolled Thomas J. Hatem Memorial Bridge entering Cecil County in the State's far northeastern corner. The toll plaza for this Hatem Bridge is encountered just beyond its east end. US 40 leaves Maryland in Elkton which is situated at the famous "Head of Elk" at the northern end of the Bay, crossing the border of the old historic Mason-Dixon line of 1767 into the first State of Delaware.


The National Road was opened from Cumberland on the Potomac River and the terminus of the parallel Chesapeake and Ohio Canal coming from Georgetown in the newly established national capital of Washington, D.C., going west and northwest into Pennsylvania, and beyond to Wheeling, Virginia on the Ohio River, southwest of Pittsburgh at the point of the Forks of the Ohio, in the 1810s. The turnpikes constructed and now operated by private stockholder companies connecting Cumberland east 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/Frederick 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 on the west bank of the Susquehanna River, and public roads continued from Perryville, across the Susquehanna River on its east bank from Havre de Grace to Elkton near the "Head of Elk" on the Elk River at the northern end of the Chesapeake Bay, where the Elk and Christiana Turnpike continued into Delaware.[]


The long arches of the current US 40 bridge over the upper / western branches of 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 parallel bridges will be constructed to serve traffic for the first time in a major bridge project in Maryland.[5]

As part of the east-west Red Line light rail project that was cancelled in 2015 by new Governor of Maryland, Larry Hogan, segments of Edmondson Avenue and Franklin Street on the west side of the city were to be widened to allow construction of the future east-west light rail line inside the median area. The Red Line would have also utilized the median of the short US 40 expressway stub (formerly planned for the cancelled extension of Interstate 70) along the Franklin Street - Mulberry Street corridor in West Baltimore.

Junction list

Garrett0.000.00 west (National Pike) - UniontownPennsylvania state line; western terminus of US 40 in Maryland
Keyser's Ridge3.415.49
east (National Pike) - Grantsville
3.746.0214 west (National Freeway) / south (Garrett Highway) - Morgantown, OaklandSplit into exits 14A (US 219) and 14B (US 40); west end of concurrencies with I-68 and US 219
Grantsville9.1214.6819 (Bittinger Road) - Grantsville, Swanton
12.1819.6022 north (Chestnut Ridge Road) - Meyersdale, PAEast end of concurrency with US 219
13.9022.3724Lower New Germany Road
Finzel19.7031.7029 (Finzel Road) - Finzel
AlleganyFrostburg23.2437.4034Midlothian Road – FrostburgMidlothian Road north is unsigned MD 736
24.9340.1236 (New Georges Creek Road) - Frostburg, Westernport
La Vale29.1246.8639
(National Highway) - La Vale
No exit eastbound; eastbound entrance ramp is from MD 53
south (Vocke Road)
No entrance westbound; Vocke Road is unsigned MD 658
Cumberland31.4650.6341 (Braddock Road) / Seton DriveWestbound exit only
32.2451.8942 south (McMullen Highway) / Greene Street north - McCoole, Keyser, WVWest end of concurrency with US 220
33.5153.9343AJohnson Street - Ridgeley, WVEastbound exit and entrance
33.5153.9343ABeall Street - Ridgeley, WVNo eastbound exit
33.8054.4043B south (Industrial Boulevard) - Airport
34.1454.9443DMaryland AvenueRight-in/right-out interchanges
west (Baltimore Avenue) / south (Willowbrook Road)
35.6957.4445Hillcrest DriveRight-in/right-out interchanges with Rannells Road eastbound and Hillcrest Drive westbound, which are unsigned MD 952 and MD 952A, respectively
36.3958.5646 (Naves Cross Road)Westbound exit and entrance
37.0959.6947 north / (National Pike) - BedfordSigned as exit 46 eastbound; east end of concurrency with US 220
41.1866.2750Pleasant Valley Road – Rocky Gap State ParkUnsigned MD 948D
42.4268.2752 east (National Pike)Eastbound exit, westbound entrance
Flintstone45.8773.8256 (National Pike) - FlintstoneWestbound ramps are with MD 948AM
(Fifteen Mile Creek Road)
54.1187.0864M.V. Smith RoadUnsigned MD 948AL
58.6494.3768Orleans Road
(National Pike) / High Germany Road / Swain Road
West end of concurrency with US 40 Scenic; High Germany Road is unsigned MD 948Y
east (National Pike) / Mountain Road
Eastbound exit, westbound entrance; Mountain Road is unsigned MD 903; east end of concurrency with US 40 Scenic
west (National Pike) / east (Western Pike) / Woodmont Road
(Eisenhower Memorial Highway) /  - Breezewood, Hancock, WinchesterSplit into exits 82A (US 522), 82B (I-70 / US 40), and 82C (I-70 / US 522) eastbound; split into exits 1A (I-68 / US 40) and 1B (US 522 south) westbound; eastern terminus of I-68; west end of concurrency with I-70
73.50118.293 (Main Street) - HancockNo westbound entrance
74.40119.745 (Millstone Road)Eastbound exit, westbound entrance
75.85122.075 (Millstone Road)Westbound exit, eastbound entrance
Indian Springs79.17127.419 east (Eisenhower Memorial Highway) - HagerstownEastbound exit from and westbound entrance to I-70; east end of concurrency with I-70
Clear Spring86.57139.32 east (Mill Street) - Williamsport
88.97143.18 north (St. Paul Road)
Huyett93.51150.49 (Greencastle Pike) - Williamsport, Cearfoss
Hagerstown94.75152.49 east (Washington Street)
96.23154.87 (Maryland Veterans Memorial Highway) - Roanoke, HarrisburgI-81 Exit 6
96.61155.48 south (Western Maryland Parkway)Officially MD 910C
97.63157.12 (Burhans Boulevard)
98.68158.81 east (Cleveland Avenue) - Smithsburg
101.72163.70 (Eisenhower Memorial Highway) - Hancock, FrederickI-70 Exit 32
Beaver Creek104.53168.22 (Mapleville Road) - Boonsboro, Smithsburg
FrederickMyersville111.03178.69 (Wolfsville Road) - Middletown
Braddock Heights118.41190.56 west (Eisenhower Memorial Highway) - HagerstownI-70 Exit 48; westbound exit, eastbound entrance
west (Old National Pike) - Braddock Heights, Middletown
No direct access from eastbound US 40 to westbound US 40 Alternate or from eastbound US 40 Alternate to westbound US 40
121.09194.8813 north (Frederick Freeway) / Patrick Street east - Gettysburgsplit into exits 13A (Patrick Street) and 13B (US 40 west); west end of concurrency with US 15
121.82196.0512 south / west (Jefferson National Pike) / Jefferson Avenue east - Leesburg, Charles TownEast end of concurrency with US 15
122.44197.0553 west / south (Eisenhower Memorial Highway) - Hagerstown, WashingtonSplit into exits 53A (I-270) and 53B (US 40 west); west end of concurrency with I-70
123.60198.9154 (Buckeystown Pike) to / Market StreetSingle-point urban interchange
124.15199.8055South StreetWestbound ramps are with Monocacy Boulevard
124.68200.6556 (Patrick Street)No westbound entrance
Bartonsville128.04206.0659 west (Old National Pike)Westbound exit, eastbound entrance
New Market131.75212.0362 (Green Valley Road) - Libertytown, Hyattstown
CarrollMount Airy137.19220.7968 (Ridge Road) - Mount Airy, Damascus
HowardLisbon142.58229.4673 (Woodbine Road) - Lisbon, Woodbine
Cooksville145.75234.5676 (Hoods Mill Road) - Westminster, Olney
West Friendship149.42240.4780 (Sykesville Road) - Sykesville, Clarksville
151.54243.8882 east - BaltimoreEastbound exit from and westbound entrance to I-70; east end of concurrency with I-70
Ellicott City154.13248.05 west (Frederick Road)
157.10252.83 (Columbia Pike) to  - Columbia, FrederickUS 29 Exit 24
159.25256.29Patapsco Valley State ParkRight-in/right-out interchanges in both directions
BaltimoreCatonsville162.28261.16 (Baltimore Beltway) - Glen Burnie, TowsonI-695 Exit 15
Baltimore City165.93267.04
east (Hilton Parkway) / Hilton Parkway south
Cloverleaf interchange
167.31269.26 Mulberry Street east to (Monroe Street/Fulton Avenue)Eastbound exit, westbound entrance (from Franklin Street)
168.36270.95Martin Luther King Jr. BoulevardDiamond interchange
168.57271.29 south (Greene Street)MD 295 is unsigned; Greene Street is one-way southbound
168.64271.40 north (Paca Street)MD 129 is unsigned; Paca Street is one-way northbound
169.02272.01Charles Street northCharles Street is one-way northbound
169.09272.12 south (St. Paul Street)No access to northbound MD 2
171.86276.58 east (Haven Street)
(Erdman Avenue) / west / south (Harbor Tunnel Thruway)
Cloverleaf interchange; movements from eastbound US 40 to northbound MD 151 and from northbound MD 151 to eastbound US 40 made via Armistead Way; I-895 Exit 13
173.58279.35 Moravia Road to / northNo eastbound entrance
173.76279.64 south - WashingtonI-95 Exit 61; ramps from westbound US 40 to southbound I-95 and northbound I-95 to eastbound US 40
BaltimoreRosedale174.12280.22 east (Philadelphia Road)
176.63284.26 (Baltimore Beltway) / Golden Ring Road north - Essex, TowsonI-695 Exit 35
Middle River177.96286.40 south (Martin Boulevard)Trumpet interchange
White Marsh180.84291.03 (White Marsh Boulevard) to Two-way ramp between US 40 and MD 43 plus a ramp from westbound US 40 to westbound MD 43
HarfordJoppatowne187.54301.82 (Magnolia Road/Mountain Road) to
Edgewood189.21304.50 south (Edgewood Road) to south / Edgewood Road north
189.78305.42 To (Vietnam Veterans Memorial Highway) - Edgewood, Bel AirTwo-way ramp between US 40 and MD 24 is MD 24D (Otter Creek Ramp)
Riverside193.93312.10 north (Riverside Parkway) to
Aberdeen196.13315.64 west / south (Old Philadelphia Road)
196.94316.94 east (Short Lane) - Aberdeen Proving Ground, Visitors/DeliveriesTrumpet interchange
198.52319.49 (Bel Air Avenue)Officially MD 132B
199.03320.31 (Aberdeen Thruway) to  - Aberdeen Proving Ground, Bel AirPartial cloverleaf interchange
Havre de Grace200.28322.32 west (Oakington Road)
201.72324.64 east (Revolution Street) - Havre de GraceOfficially MD 7A
203.10326.86 west (Otsego Street) / west (Ohio Street) to / Otsego Street west - Havre de Grace, ChurchvilleOfficially MD 7A; last eastbound exit before toll
Susquehanna River203.41-
Thomas J. Hatem Memorial Bridge
CecilPerryville205.02329.95Thomas J. Hatem Memorial Bridge Toll Plaza (eastbound, E-ZPass or Video Tolling)
205.21330.25 (Perryville Road/Aiken Avenue) to  - Port Deposit, Perryville, VA Hospital
207.98334.71 west (Principio Furnace Road) - PerryvilleOfficially MD 7B
208.45335.47 east (Old Philadelphia Road) - Charlestown, North EastOfficially MD 7C
North East212.33341.71 (Mauldin Avenue/North East Road) to  - Cecil College, Bay View, North East
Elkton217.43349.92 west (Old Philadelphia Road) / north (Elkton Road) to  - North East, NewarkOfficially MD 7C
218.91352.30 (Bridge Street/Augustine Herman Highway) - Elkton, Chesapeake City
220.25354.46 west (Delaware Avenue)Officially MD 7D
221.08355.79 north (Delancy Road)
221.31356.16 east (Pulaski Highway) - GlasgowDelaware state line; eastern terminus of US 40 in Maryland
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also


  1. ^ a b Highway Information Services Division (December 31, 2013). Highway Location Reference. Maryland State Highway Administration. Retrieved .
  2. ^ a b Highway Information Services Division (December 31, 2005). Highway Location Reference. Maryland State Highway Administration. Retrieved .
  3. ^ "Maryland's Geologic Features: Sideling Hill, Washington County". Retrieved .
  4. ^ https://www.facebook.com/pg/larryhoganmd/photos/?tab=album&album_id=1381803611864400
  5. ^ Dresser, Michael (September 23, 2010). "U.S. 40 bridge over Patapsco to be replaced". The Baltimore Sun. Baltimore, MD. Retrieved 2010.

External links

Route map:

KML is from Wikidata

U.S. Route 40
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