 At war's end the now of line included at least 68 forts, over of rifle pits, and were supported by of military use only roads and four individual picket stations.93 separate batteries of artillery had been placed on this line, comprising over 1,500 guns, both field & siege varieties, as well as mortars.Hospitals in the Washington area became significant providers of medical services to wounded soldiers needing long-term care after being transported to the city from the front lines over the Long Bridge or by steamboat at the Wharf.