answers: the Hudson River
context: Long Bridge (Potomac River) Long Bridge connects Washington, D.C. to Arlington, Virginia over the Potomac River. Originally built in 1808 for foot, horse and stagecoach traffic, it was repaired and replaced several times in the 19th century. The current bridge was built in 1904 using ten recycled truss spans from the old Delaware River bridge in Trenton, one new truss span and a swing draw. It is today used only for railroad traffic. The building of the Long Bridge by "The Washington Bridge Company" was authorized on February 5, 1808 by an Act of Congress. President Thomas Jefferson signed it </s> Arlington Memorial Bridge The Arlington Memorial Bridge is a Neoclassical masonry, steel, and stone arch bridge with a central bascule (or drawbridge) that crosses the Potomac River at Washington, D.C., the capital of the United States. First proposed in 1886, the bridge went unbuilt for decades thanks to political quarrels over whether the bridge should be a memorial, and to whom or what. Traffic problems associated with the dedication of the Tomb of the Unknown Soldier in November 1921 and the desire to build a bridge in time for the bicentennial of the birth of George Washington led to its </s> George Washington Bridge The George Washington Bridge is a double-decked suspension bridge spanning the Hudson River in the Washington Heights neighborhood of Manhattan in New York City with the borough of Fort Lee in New Jersey. , the George Washington Bridge carried over 103 million vehicles per year, making it the world's busiest motor vehicle bridge. It is owned by the Port Authority of New York and New Jersey, a bi-state government agency that operates infrastructure in the Port of New York and New Jersey. The George Washington Bridge is also informally known as the GW Bridge, the GWB, the
question: what body of water does the george washington bridge cross over