U.S. Route 40 in Maryland

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U.S. Route 40
Maintained by MDSHA, Baltimore DOT, and MdTA
Length:	221.31 mi[1] (356.16 km)
West end:	US 40 near Addison, PA
Major junctions:	I-68/US 219 near Grantsville US 220 in Cumberland I-70/US 522 in Hancock I-81 near Hagerstown US 15/US 340 in Frederick US 29 near Ellicott City US 1 in Baltimore MD 24 near Edgewood
East end:	US 40 near Glasgow, DE
Highways in Maryland < MD 39 MD 41 > State highways - Minor - Former - Turnpikes

U.S. Route 40 in Maryland runs from Western Maryland to Cecil County in the state's northeastern corner. With a total length of over 200 miles (320 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 are mostly two-lane roads. On the other hand, the portion east of Baltimore is a four-lane divided highway, known as the Pulaski Highway, 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).

[edit] History

See also: National Road and extensions in Maryland

The National Road 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), was 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.^{[citation needed]}

[edit] Junction list

County	Location	Mile[1]	Intersection	Notes
Garrett (21.70 mi)		3.25	MD 826H south
		3.41	US 40 Alt. east (National Pike)
		3.74	I-68 west; US 219 south (Garrett Highway)	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 (40.27 mi)
Washington (45.95 mi)
		79.17	I-70 east	I-70 overlap ends; exit 9 of I-70
	Clear Spring	86.57	MD 68 south (Mill Street)
		88.97	MD 57 north (St. Paul Road)
		93.51	MD 63 (Greencastle Pike)
		94.75	MD 144 east (Washington Street)
		96.23	I-81	Exit 6 of I-81
		96.61	MD 910C south (Western Maryland Parkway)
	Hagerstown	97.63	US 11 (Burhans Boulevard)
		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	MD 64 east (Cleveland Avenue)
		101.72	I-70	Exit 32 of I-70
		104.53	MD 66 (Mapleville Road)
Frederick (29.24 mi)		111.03	MD 17 (Wolfsville Road)
		118.41	I-70 west	Exit 48 of I-70
	Frederick	119.70	US 40 Alt. west (Old National Pike)
		121.09	US 15 north (Frederick Freeway); Patrick Street east	US 15 overlap begins; exit 13 of US 15; to MD 144 east via Patrick Street
		121.82	US 15 south/US 340 west (Jefferson National Pike); US 15B north (Jefferson Street)	US 15 overlap ends; exit 12B of US 15
		122.44	I-70 west; I-270 south	I-70 overlap begins; exit 53B of I-70; exit 32 of I-270
	See Interstate 70 (29.10-mile overlap)
Carroll (1.61 mi)
Howard (21.08 mi)
		151.54	I-70 east	I-70 overlap ends; exit 82 of I-70
		154.13	MD 144 west (Frederick Road)
		157.10	US 29 (Columbia Pike)	Exit 24 of US 29
		158.05	MD 984 east
Baltimore (3.98 mi)		162.29	I-695	Exit 15 of I-695
Baltimore City (10.05 mi)		165.93	US 40 Truck east (Hilton Parkway)
		167.31 167.41	US 1 (Monroe Street, Fulton Avenue)
		168.36	Martin Luther King Jr. Boulevard
		168.57 168.64	MD 129 north, MD 295 south (Greene Street, Paca Street)
		169.09 169.18	MD 2 (St. Paul Street, Calvert Street)
		171.86	MD 150 east (Haven Street)
		172.59	US 40 Truck west, MD 151 (Erdman Avenue)
		172.84	I-895 south	Exit 13 of I-895
		173.58	Moravia Road west
		173.76	I-95 south	Exit 61 of I-95
Baltimore (11.54 mi)		173.94	MD 7BA east (Old Philadelphia Road)
		174.12	MD 7 east (Philadelphia Road)
		176.63	I-695	Exit 35 of I-695
		177.96	MD 700 south (Martin Boulevard)
		180.84	MD 43 west (White Marsh Boulevard)
Harford (18.61 mi)		187.54	MD 152 (Mountain Road)
		189.21	MD 755 south (Edgewood Road)
		189.78	MD 24D to MD 24
		193.81	MD 543 (Riverside Parkway)
		196.13	MD 7 west, MD 159 south (Old Philadelphia Road)
	Aberdeen	196.94	MD 715 east (Short Lane)
		198.52	MD 132 (Belair Avenue)
		199.03	MD 22 (Aberdeen Thruway)
		200.28	MD 132B south (Oakington Road)
		201.72	MD 7 north (Revolution Street)
	Havre de Grace	203.10	MD 7 south (Otsego Street); MD 155 west (Ohio Street)
		204.03	Thomas J. Hatem Memorial Bridge over the Susquehanna River
Cecil (17.28 mi)
	Perryville	205.21	MD 222 north (Perryville Road)
		207.98	MD 7 south (Philadelphia Road)
		208.45	MD 7 north (Philadelphia Road)
		212.33	MD 272 (Northeast Road)
		217.43	MD 7 south (Philadelphia Road); MD 279 north (Elkton Newark Road)
	Elkton	218.91	MD 213
		220.25	MD 7 west (Delaware Avenue)
		220.30	MD 7E north
	Elkton	221.08	MD 781 north (Delancy Road)

[edit] References

[edit] External links

• US 40 at MDroads.com

U.S. Route 40
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