In the decades before 1861, the Virginia Board of Public Works had invested in canals, roads, and railroads, by purchasing stock in and/or receiving mortgages on turnpike, toll bridge, canal and rail transportation companies. By 1861, those $34 million in investments with deferred 6% interest totaled about $46 million. During the American Civil War, most of the railroads had been used for military purposes by armies on both sides, and had become strategic targets. Railroad lines were ripped up, terminals burned, bridges blown up and rolling stock destroyed. Several northwestern counties also seceded from Virginia to remain in the Union as the State of West Virginia. Much of what little railroad and canal infrastructure remained was in West Virginia.