Bridge at Little Falls of the Potomac River, above Georgetown
1797
1797
1859-06
1994
1802
circa 1801
circa 1801
circa 1801-1802
circa 1880
1802
1802
circa 1801
1798-03-22
circa 1861-1865
circa 1861-1865
circa 1804-1806
1856
circa 1900
1802
1798-03-19
circa 1801
1912-12-20
1912-12-20
circa 1802
1797-07-10
circa 1830
1850
1830
1850-1860
circa 1900-1960
circa 1883
1804
circa 1673
1943
circa 1883
1888-09
1854
1859
circa 1860
1852
1798
1888
1888
circa 1801
1863
1881
circa 1960s
1870
circa 1949
1798-05-24