The Toll House stands on the New York side of the Roebling Bridge and was built somewhere between 1900 and 1905. This small, two-story structure served as the toll house for the Lackawaxen Bridge (Roebling Aqueduct) after the D&H Canal was closed. The Roebling Aqueduct is believed to be the oldest suspension bridge in America. Built by John Roebling, designer of the Brooklyn Bridge, it carried the D&H Canal across the river. After 50 years of use as an aqueduct, it became a highway bridge in 1898. The bridge consists of four spans, 132 feet to 142 feet, the widest to allow logging rafts to pass through. The bridge is a National Historic Landmark and a National Historic Civil Engineering Landmark. The National Park Service purchased and restored it several years ago.