Fortifications

Fort Wagner (1861-1865) - A Union  Civil War fort established in 1861 in Southeast Washington DC.  Also known as Fort Good Hope.  

Established in 1861 as an earthen fort with a perimeter of 166 yards and emplacements for five guns. Fort Wagner was a battery intended to sweep the valley through which the road leads up the heights.  

Location:  Near Alabama Ave., Good Hope Road, and 25th Street in Southeast Washington DC.  ( Source - Fortwiki )