reserved for express trains, doubling the line's capacity. This project was funded entirely by the railroad, and was reached in an agreement with the New York City Department of Public Works, titled the "Harlem Depression Agreement", with the railroad paying for the construction of bridges over the now-depressed line. Service on the Harlem Line was expected to double. Express trains were expected to go at least , while locals were expected to go at least . of the line were put into a cut below the line's existing grade, starting north of 138th Street to north of Bedford Park station. Upon completion, there was a four track line from Woodlawn Junction to Grand Central. The line's cost was initially anticipated to be $2 million. On July 10, 1890, as part of the line's grade-separation project in the Bronx, the third track between Mott Haven and Fordham was completed. At the time, the four tracks between Woodlawn Junction and the Harlem River were almost completed, with a few hundred yards of rails needed to make some connections. The four tracks were expected to be completed on July 13. The New Haven Railroad planned to build a flyover at Williamsbridge for northbound trains so that their trains would not have to cross the other three tracks at grade. The rebuilt rapid transit stations were not yet completed. The entire project cost about $4 million. On February 15, 1897, trains on the Harlem Division started running over the new drawbridge over the Harlem River and the elevated structure connecting to it. As part of the project, the line north of 106th Street to the Harlem River was elevated so that it could reach the height of the new four-track drawbridge: the only one in the country at the time. The project was known as the Park Avenue Improvement. The new line went via a steel viaduct, replacing a masonry viaduct and an open cut. The bridge was built for about $500,000 by the King Bridge Company. The new bridge is higher than the old bridge, as mandated by the Federal Government. During the course of construction, trains ran over a temporary wooden structure along with a temporary wooden drawbridge. The station at Mott Haven on the Bronx side of the Harlem River had to be elevated. The entire cost was $2 million. On October 15, 1897, a spacious new station in Harlem was