Is there a Putman Bridge on your Putman Division ? The Putnam Bridge was a swing bridge that spanned the Harlem River and the adjacent tracks of the New York Central Railroad in New York City. The bridge connected Harlem in Manhattan to Concourse, near the current location of Yankee Stadium, in the Bronx. It carried two tracks of the New York and Putnam Railroad, and later the 9th Avenue elevated line of the Interborough Rapid Transit Company (IRT), as well as two pedestrian walkways outside the superstructure.
By 1894 it was reorganized as the New York & Putnam Railroad (NY&P) by J. P. Morgan who in turned leased the railroad to the New York Central & Hudson River Railroad (NYC&HR). The line eventually became the Putnam Division of the New York Central Railroad (NYC) by 1913. The line lacked a direct connection to NYC's flagship station, Grand Central Terminal (GCT), which hurt ridership throughout its existence. Passengers were forced to transfer at Highbridge to reach GCT.
Peter - Look like I just learned something about your layout.