The B&O had to repair damaged line at its own expense, and often received late or no payment for services rendered to the federal government. In May, CSA Colonel Jackson's operations against the B&O Railroad (1861) began. Stonewall Jackson initially permitted B&O trains to operate during limited hours over the approximately 100 miles from Point of Rocks to Cumberland. On June 20, 1861, Jackson's Confederates seized Martinsburg, a major B&O work center, having had blown up the Harpers Ferry railroad bridge on June 14. Confederates confiscated dozens of locomotives and train cars and ripped up double track in order to ship rails for Confederate use in Virginia (14 locomotives and 83  rail cars were dismantled and sent south, and another 42 locomotives and 386 rail cars damaged or destroyed at Martinsburg, with the B&O water station and machine shops also destroyed and miles of telegraph wire removed by the time federal control was restored in March 1862). By the end of 1861, 23 B&O railroad bridges had been burned and of track were torn up or destroyed.