 By the end of August 1865, however, with funds running low, and no further appropriations likely, more and more forts were designated as second- or third-class locations, and were dismantled and the land returned to its original owners.Fort Corcoran stored the cannon of the dismantled forts located south of the Potomac River.By October 1866, orders were given to the Ordnance Sergeant at Fort Corcoran to compile a complete list of all the weapons at the fort in order to assist in their final movement to the Washington Arsenal or other permanent forts.