The 'Baltimore and Ohio Railroad' ('B&O') was one of the
oldest railroads in the United States, with an original line from the port of
Baltimore, Maryland, west to the
Ohio River at
Wheeling and
Parkersburg, West Virginia. It is now part of the
CSX network, and includes the oldest operational railroad bridge in the world. The B&O also included the
Leiper Railroad, the first permanent railroad in the U.S. In later years, B&O advertising carried the motto: "Linking 13 Great States with the Nations Capital."
When CSX Corp. established the
B&O Railroad Museum as a separate entity from the corporation, some of the former B&O shops in Baltimore, including the Mt. Clare
roundhouse, were donated to the Museum while the rest of the property was sold.
History

1876 map
Two men —
Philip E. Thomas and
George Brown — were the pioneers of the railroad. They spent the year 1826 investigating railway enterprises in England, which were at that time being tested in a comprehensive fashion as commercial ventures. Their investigation completed, they held an organizational meeting on
February 12,
1827, including about twenty-five citizens, most of whom were Baltimore merchants or bankers. , passed
February 28,
1827, and the Commonwealth of
Virginia on
March 8,
1827, chartered the 'Baltimore and Ohio Rail Road Company', with the task of building a railroad from the port of
Baltimore, Maryland west to a suitable point on the
Ohio River. The railroad, formally incorporated
April 24, was intended to provide not only an alternative to, but also a faster route for
Midwestern goods to reach the
East Coast than the seven-year-old, hugely successful, but slow
Erie Canal across
upstate New York. Thomas was elected as the first president and Brown the treasurer. The capital of the proposed company was fixed at five million dollars.
[1]
Early Construction
Construction began on
July 4,
1828, and the first section, from Baltimore west to
Ellicott's Mills (now known as
Ellicott City), opened on
May 24,
1830. It was decided to follow the
Patapsco River to a point near
Parr's Ridge where the railroad would cross the
fall line and descend into the valley of the
Monocacy and
Potomac Rivers. Further extensions opened to
Frederick (including the short
Frederick Branch)
December 1,
1831,
Point of Rocks April 2,
1832,
Sandy Hook December 1,
1834 (the connection to the
Winchester and Potomac Railroad at
Harpers Ferry opening in 1837),
Martinsburg May
1842,
Hancock June
1842,
Cumberland November 5,
1842,
Piedmont July 21,
1851,
Fairmont June 22,
1852, and its terminus at
Wheeling, West Virginia (then part of
Virginia) on
January 1,
1853.

Table of Cumberland Coal Shipped over B&O and C&O 1842-1865
The state of Maryland granted the B&O a charter to build a line from Baltimore to
Washington, D.C., in 1831, and the
Washington Branch was opened in 1835. This line joined to the original mainline at
Relay, Maryland, crossing the Patapsco on the
Thomas Viaduct, which remains one of the B&O's signature structures. This line was partially funded by the state, and was operated separately until the 1870s, with the state taking a 25% cut of gross passenger receipts. This line was built in stone, much like the original mainline; by this time, however, strap rail was no longer used for new construction. Most of the stone bridges on the
Old Main Line did not last long, being washed out by the periodic flooding of the
Patapsco River and replaced at first by
Bollman Truss Bridges. The
Annapolis and Elk Ridge Railroad to
Annapolis connected to this line at
Annapolis Junction, Maryland, in 1840. As an unwritten condition for the charter, it was understood that the state would not charter any competing line between Baltimore and Washington.
Civil War
American Civil War raids, raiders and raider bases involving the B&O Railroad:
★ Some famous battles and raids
★
★ The
Great Train Raid of 1861, May 1861
★
★ The
Martinsburg Train Raid, June 20-23, 1861
★
★ The
Leesburg Train Raid, August 7, 1861
★
★ The
Romney Expedition, January 1 through January 24, 1862
★
★ Various Raids of Brigadier General A. G. Jenkins, Fall, 1862
★
★ The
Jones-Imboden Raid, April 24 through May 22, 1863
★
★ The
Battle of Monocacy, July 9, 1864
★
★
Gilmor's Raid, July 11, 1864
★ Confederate raiders and units which raided the B&O Railroad:
★
★ Lieutenant General Thomas J.
"Stonewall" Jackson and many units under his command
★
★ Lieutenant General
Jubal Anderson Early and many units under his command
★
★ Brigadier General
Turner Ashby and his "Black Horse" cavalry
★
★ Brigadier General
John D. Imboden and the 62nd Virginia Mounted Infantry (1st Partisan Rangers)
★
★ Brigadier General
Albert G. Jenkins' and the 8th Virginia Cavalry
★
★ Brigadier General
William E. "Grumble" Jones and the "Laurel Brigade"
★
★ Colonel John S. Mosby's "
Mosby's Raiders"
★
★ Major
Harry Gilmor's "Gilmor's Raiders"
★
★ Captain John H. McNeill's "
McNeill's Rangers"
★ Cities involved in raiding the B&O Railroad
★
★
Winchester in the Civil War
★
★
Harpers Ferry, West Virginia
Westward by merger
A steel and stone bridge was built across the
Ohio River between Bellaire and Wheeling in 1871, connecting the B&O to the
Central Ohio Railroad which it had leased starting in 1866. This provided a direct rail connection to
Columbus, Ohio, and the lease marked the beginning of a series of expansions to the west and north.
Other railroads included in the B&O were:
★
Winchester and Potomac Railroad and
Winchester and Strasburg Railroad from 1867. This pair of lines connected with the B&O at
Harper's Ferry, West Virginia, and constituted the only significant B&O trackage in present day
Virginia.
★
Sandusky, Mansfield and Newark Railroad leased through the Central Ohio in 1869
★
Pittsburgh and Connellsville Railroad from 1871. This was the B&O entry into Pittsburgh, thwarting the denial of a Pennsylvania charter to the B&O.
★
Somerset and Cambria Railroad from 1879.
★
Buffalo Railroad from 1880.
★
West Virginia and Pittsburgh Railroad from 1890.
★
Columbus and Cincinnati Midland Railroad leased through Central Ohio in 1890.
★
Monongahela River Railroad from 1900.
★
Marietta and Cincinnati Railroad from 1882. This was initially renamed as the
Cincinnati, Washington and Baltimore Railroad in and then again to the
Baltimore and Ohio Southwestern Railroad in 1889. The B&OSW absorbed the
Ohio and Mississippi Railroad in 1893, giving the B&O a connection to
St. Louis, Missouri, and finally the B&OSW disaapeared into the rest of the system in 1900.
★
Ohio River Railroad from 1901.
★
Pittsburgh Junction Railroad from 1902.
★
Pittsburgh and Western Railroad from 1902. This was originally a narrow gauge system which was standard gauged from 1883 to 1911. It formed the main B&O line west from Pittsburgh. The line passed the
Mars Train Station in
Mars, Pennsylvania, northwest of Pittsburgh.
★
Cleveland Terminal and Vally Railroad from 1909. This was the B&O's entry into
Cleveland, Ohio.
★
Cleveland, Lorain and Wheeling Railroad from 1909.
★
Chicago Terminal Transfer Company, reorganized in 1910 as the
Baltimore and Ohio Chicago Terminal Railroad. This switching line was always operated as a separate company.
★
Salisbury Railroad near Pittsburgh, operated from 1912.
★
Cincinnati, Hamilton and Dayton Railroad from 1912.
★
Morgan and Kingwood Railroad from 1922.
★
Coal and Coke Railroad from 1920.
★
Cincinnati, Indianapolis and Western Railroad from 1927. This was originally part of the Cincinnati, Hamilton and Dayton, and gave the B&O a connection to
Springfield, Illinois.
★
Buffalo, Rochester and Pittsburgh Railway in 1932. This gave the B&O a line into
New York state.
★
Buffalo and Susquehanna Railroad from 1932. Part of the line was severed from the rest of the system by flooding, and became part of the
Wellsville, Addison and Galeton Railroad in 1955.
(This list omits certain short lines.)
The
Chicago and Alton Railroad was purchased by the B&O in 1931 and renamed the
Alton Railroad. It was always operated separately and was eventually bought by the
Gulf, Mobile and Ohio Railroad after receivership in 1942.
On
July 20,
1877 there were bloody
riots in
Baltimore, Maryland, from Baltimore and Ohio Railroad workers. Nine rail workers were killed at the hands of the
Maryland militia. The next day workers in
Pittsburgh, Pennsylvania, staged a
sympathy strike that was also met with an assault by the state militia; Pittsburgh then erupted into widespread rioting.
New lines in Maryland
In 1866 the B&O began constructing the 'Metropolitan Branch' west out of Washington, and was completed in 1873 after years of erratic effort. Before this line was laid, rail traffic west of Washington had to travel first to Relay or Baltimore before joining the main line. The line cut a more or less straight line from Washington to
Point of Rocks, Maryland, with many grades and large bridges. Upon the opening of this line, through passenger traffic was rerouted through Washington, and the old main line from Point of Rocks to Relay was reduced to secondary status as far as passenger service was concerned. Rebuilding in the early 1900s and double tracking in 1928 increased capacity; the "branches" became the ''de facto'' mainline, though the Old Main Line was retained as relief route.
Meanwhile the
Pennsylvania Railroad (PRR) outmaneuvered the B&O to acquire the B&O's northern connection, the
Philadelphia, Wilmington and Baltimore Railroad in the early 1880s, cutting off the B&O's access to
Philadelphia, Pennsylvania and
New York. The state of Maryland had stayed true to its implicit promise not to grant competing charters for the Baltimore/Washington line, but when a charter was granted in 1860 to build a line from Baltimore to Pope's Creek in southern Maryland, lawyers for the Pennsylvania RR picked up on a clause in the unfulfilled charter allowing branches up to twenty miles long, from any point and in any direction. The projected route, passing through what is now
Bowie, Maryland, could have a "branch" constructed that would allow service into Washington. The Pennsylvania picked up the charter through the agency of the
Baltimore and Potomac Railroad and in 1872 service between Baltimore and Washington began. At the same time the PRR outmaneuvered the B&O and took control of the
Long Bridge, B&O's connections to southern lines.
In response, the B&O chartered the
Philadelphia Branch in Maryland and the
Baltimore and Philadelphia Railroad in Delaware and Pennsylvania and built a parallel route, finished in 1886. The
Baltimore Belt Line, opened in 1895, connected the main line to the Philadelphia Branch without the need for a
car ferry across the
Patapsco River, but the cost of constructing the
Howard Street Tunnel drove the B&O to bankruptcy in 1896. Two other lines were built in attempts to reconnect to the south. The Alexandria Branch was built in 1874, starting from
Hyattsville, Maryland, and ending at a ferry operation at Shepherd's Landing. The Ferry operation continued until 1901 when the trackage rights agreement concluded as part of the construction of
Washington Union Station saw the south end of the branch realigned to link to the PRR trackage in Anacostia, across the
Anacostia River, into the
Capitol Hill Tunnel, through Southwest Washington, D.C. to
Potomac Yard in
Alexandria, Virginia. The Alexandria Branch trackage to Shepherd's Landing was heavily used during
World War II when traffic congestion on the
Long Bridge caused the
U.S. Army Corps of Engineers to construct a bridge along the original plan of the B&O: Alexandria to Shepherd's Landing, Washington. Trains of empty freight cars were routed north and south over the structure, which was demolished after the end of World War II.
Before either connection was made, however, another branch was built around the west side of Washington. During the 1880s the B&O had organised a group of bankrupt railroads in
Virginia into the
Virginia Midland Railroad. The VM track rack from
Alexandria, Virginia, to
Danville, Virginia. The line projected west across the Potomac River was intended to cross the Potomac just north of the D.C. line, to continue southwest to a connection with the B&O-controlled Virginia Midland (VM) in
Fairfax, Virginia (now
Fairfax Station, Virginia, to distinguish it from what was
Fairfax Court House, Virginia, and is now the
City of Fairfax, Virginia), and if possible to a connection with the
Richmond, Fredericksburg, and Potomac Railroad in
Quantico, Virginia. The branch was started in 1892 and reached
Chevy Chase, Maryland, the same year. Financial problems in both the VM and B&O forced a halt to construction and led to the B&O's loss of control of the VM. Following bankruptcy, and control by the
Pennsylvania Railroad, by the time the line was completed in 1910 there was no longer any point to the river crossing. Thus the renamed
Georgetown Branch came to serve a wide range of customers in Maryland and in Georgetown, such as the
Potomac Electric & Power Co., the
Washington Milling Company, and the U.S. Government. The line cut directly across the various creeks, and as a result required a short tunnel and what was said to be the longest wood trestle on the railroad over Rock Creek. The line was almost completely abandoned in 1986 by CSX and is presently used in part as the right-of-way for the
Capital Crescent Trail.
The 20th century
Following its emergence from bankruptcy, control of the B&O was acquired by the
Pennsylvania Railroad in 1901. A rising young PRR Vice President,
Leonor F. Loree, was appointed President. Loree shared the Pennsy management's belief in infrastructure and the B&O at that time needed some of that. New classes of engines were built to haul longer, heavier trains faster. The
Old Main Line was reworked, sections of the original right-of-way cut off by the straightening of curves and replacement of old, weight-restricted bridges with newer, heavier bridges. Most of Loree's work on the B&O physical plant remains evident today. Many iron and steel bridges on the railroad were replaced with stone (Pennsy preferred stone to the preference of the
Reading and
Lackawanna Railroad for concrete).
Chesapeake and Ohio Railroad took control of the B&O in 1963, and incorporated it, along with the
Western Maryland Railway, into the
Chessie System in 1973. In 1980, the Chessie System merged with the
Seaboard System Railroad to create
CSX. In 1986, the B&O finally went out of corporate existence when it formally merged with the C&O (which itself formally merged with CSX later that same year).
At the height of railroading's golden age, the B&O was one of several trunk lines uniting the northeast quadrant of the United States into an industrial zone. It marked the southern border and corresponded to the New York Central's marking of the northern border. The Pennsylvania Railroad controlled the center and smaller roads like the
Lackawanna,
Lehigh Valley, and the
Erie survived largely through the
Interstate Commerce Commission. The corners of this map are Baltimore in the southeast, Boston in the northeast, Chicago in the northwest, and St. Louis in the southwest.
Early engineering

Carrollton Viaduct
When construction began on the B&O in the 1820s, railroad engineering was in its infancy. Unsure exactly which materials would suffice, the B&O erred on the side of sturdiness and built many of its early structures of
granite. Even the track bed to which
iron strap rail was affixed consisted of the stone.
Though the granite soon proved too unforgiving and expensive for track, most of the B&O's bridges have survived until the present, and many are still in active railroad use by CSX. Baltimore's
Carrollton Viaduct, named in honor of
Charles Carroll of Carrollton (who laid the cornerstone), was the B&O's first bridge, and is the world's oldest railroad bridge still in use. The
Thomas Viaduct in
Relay, Maryland, was the longest bridge in the United States upon its completion in 1835, and remains in use as well. The B&O made extensive use of the
Bollman iron truss bridge in the mid-1800s; its durability and ease of assembly aided faster railroad construction.
As the B&O built west from Baltimore in 1830, it followed the banks of the
Patapsco River upstream to the water's source at Parrs Spring near present-day
Mount Airy, Maryland. At the time little data about the operation of steam locomotives was available, and consequently the B&O was uncertain if metal wheels would grip the metal rails sufficiently to pull a train up to the top of Parrs Ridge. The railroad decided to construct two
inclined planes on each side of the ridge along which teams of horses, and perhaps steam-powered winches, would assist pulling the trains uphill. The planes, about a mile long on each side of the ridge, quickly proved an operational bottleneck, and before the decade of the 1830s ended the B&O built a 5.5 mile long alternate route that became known as the Mount Airy Loop. The planes were quickly abandoned and forgotten, though some artifacts survive to the present
''See also
Old Main Line Subdivision''
Branches
;Mount Airy
The Mount Airy Branch is the surviving, in-use portion of the 1839-opened Mount Airy Loop. The Loop had been mainline track until superseded by the Mount Airy Cutoff and Tunnel in 1902.
;Frederick
The
Frederick Branch was built because the city of Frederick would not pay the
B&O the cost of routing the railroad through the rougher terrain into downtown Frederick. The branch opened on
December 1,
1831. The continuation of the main line from
Frederick Junction opened
April 2,
1832.
;Patuxent Branch
The Patuxent Branch was constructed in the 1880s and split off from the Washington Branch at
Savage, Maryland to serve a mill, a quarry, and other small industry. After 1925, the line was gradually cut back, and disconnected completely in 2005.
;Georgetown Branch
Originally intended as an extension of the railroad to a crossing of the
Potomac River near the
Chain Bridge, the agreement between the
Pennsylvania Railroad and the B&O resulting from the rerouting of track for the
Washington Union Station project put an end to the crossing and the branch settled down to being just a country railroad until the
Washington, D.C. suburbs grew around it.
;Washington County Branch
The B&O had decided against a direct line to Hagerstown, though the city had petitioned the Directors. Several north-south routes like the
Cumberland Valley built through Hagerstown and the construction of the
Western Maryland Railway to that city persuaded the B&O management to build a branch. It was decided that the branch would leave the mainline at
Weaverton and wind its way through the hills of Western Maryland to Hagerstown. A station was constructed at the stub end of the line in downtown Hagerstown.
Trivia
★ In the
U.S. version of the
board game Monopoly, the B&O is one of the four railroad properties on the board, but is the only railroad on the board which did not serve
Atlantic City, New Jersey, directly.
★ A one-time
B&O warehouse at the Camden Yards rail junction in Baltimore now dominates the view over the right-field wall at the
Baltimore Orioles' current home,
Oriole Park at Camden Yards.
References
1. The Railroad Builders John Moody (1919)
★
Railroad History Database
★
The Baltimore and Ohio Railroad Timeline
★ Mileposts from
CSX Transportation Timetables
★ Harwood, Herbert. ''Impossible Challenge'', Barnard, Roberts and Co., 1979.
★ Sagle, Lawrence, and Alvin Staufer. ''B&O Power'', Alvin F. Staufer, 1964.
See also
★
Baltimore and Ohio Railroad locomotives
★
Baltimore and Ohio Railroad Martinsburg Shops, a
National Historic Landmark
★
Baltimore Belt Line
★
Aeolus Railroad Car
Named trains
★ ''
Capitol Limited''
★ ''
Cincinnatian''
★ ''
Columbian''
★ ''
Metropolitan Special
★ ''
National Limited''
★ ''
President Express''
Named cars
★ ''
La Paz''
External links
★
B&O Railroad Historical Society
★
B&O Railroad Photo Tours in and around Maryland
★
Baltimore & Ohio Railroad Museum
★
John W. Garrett Collection, 1850-1880 Archives Center, National Museum of American History, Smithsonian Institution.
★
The Baltimore and Ohio Railroad Network