BALTIMORE AND OHIO RAILROAD MILEAGE - DECADE BY DECADE
1830 - 13 miles 1840 - 116 miles 1850 - 213 miles 1860 - 515miles
1870 - 588 miles 1880 - 1,449 miles 1890 - 1,845 miles 1900 - 3,200 miles
1910 - 4,434 miles 1920 - 5,155 miles 1930 - 5,569 miles 1940 - 6,293 miles
1950 - 6,201 miles 1960 - 5,909 miles 1970 - 5,552 miles 1980 - 5,208 miles
Source: History of the Baltimore and Ohio Railroad by John F. Stover.
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