level underneath the IRS building which caused the wooden piers to lose stability and part of the IRS building foundation to sink. A pub near Tiber Creek's historic course north of Capitol Hill was named after it. The Bistro Bis restaurant now occupies the Tiber Creek Pub's former location. A lock keeper's house from the Washington branch of the Chesapeake and Ohio Canal remains at the southwest corner of Constitution Avenue and 17th Street, NW, near the former mouth of Tiber Creek, and the western end of the Washington City Canal. According to General James Wilkinson's memoirs, "I may be excused for mention another incident, which deeply interested [...] my family. My father, to preserve his health and property, purchased 500 acres of land lying on the Tyber and Potomack, which probably comprises the President's house; but at the time, about 1762, the present seat of government was considered so remote from the early settlements of the province, that my mother objected to the removal on accounts of the distance, and my father transferred the property to Thomas Johns, esq. a friend and contemporary, of his neighborhood, to whose family it proved an auspicious contract; but in this case, the benefactor did not long enjoy the prosperity he had promoted." Presently, the stream flowing under the city is often referred to as Tiber Creek though its common past with the Canal is acknowledged. Location and Course It lay southeast of then Georgetown, Maryland, amid lands that were selected for the City of Washington, the new capital of the United States. Presently this land is the National Mall. Several small streams flowed from the north and south meeting at the base of Capitol Hill then heading west to flow into the Potomac River near Jefferson Pier. The overall course of the creek was kept when the Canal was built during 1815. References Further reading External links Painting of John Quincy Adams on Tiber Creek, by Peter Waddell, 2009, at the White House Historical Association "Tiber Creek" at Histories of the National Mall History of Washington, D.C. Rivers of Washington, D.C. Tributaries of the Potomac River Former rivers Subterranean rivers of the United States