opened in 1908. The American Bridge Company was contracted to construct the new bridge. The temporary framework for the second bridge's swing span was constructed at 216th Street in Manhattan, slightly south of the bridge site. The approach spans were constructed next to Broadway, along the shore where they were to be installed. Pile-driving for the new swing span began at 216th Street in May 1905 and was finished that September. The approach spans were built on crib piers that rested along flatcars, with each span slightly overhanging the shore on either end. After the approach spans were completed, the approach spans were pushed off the flatcars and floated onto scows. The spans of the old Harlem Ship Canal Bridge were replaced with the new double-decker spans in three phases. Traffic on Broadway was not to be interrupted for more than five days total. After the old spans were disconnected from their old location and moved aside, the corresponding sections of the second bridge were floated into place. The southern approach at Broadway was replaced in October 1905, followed by the northern approach in November. The old swing span was replaced with the new swing span in June 1906. The second span ultimately cost $1,182,782 to install. When the IRT's West Side Branch was extended in March 1906, it had a temporary terminal at 221st Street, just south of the bridge's Manhattan end. Subway service was extended over the Broadway Bridge to Marble Hill–225th Street in January 1907 and the 221st Street station was closed. By the early 1930s, there were proposals to build the long-delayed Henry Hudson Bridge to the west, carrying traffic on the Henry Hudson Parkway (New York State Route 9A). The project was being upheld as a way to alleviate traffic on the Broadway Bridge, which in 1933 accommodated 28,000 vehicles a day, almost as much as the Holland Tunnel between New Jersey and New York. While the Henry Hudson Bridge was to be a toll bridge, the Broadway Bridge charged no toll for the eleven million vehicles that, at the time, crossed it every year. In mid-December 1934, the section of Broadway across the bridge was signed as US 9 within New York City for the first time, as were several other U.S. Highways and state routes. The section of US 9 south of the bridge ran to 179th Street, turning west to the George