Help ID this wreck location

Found this old clip of a wreck on what must be Metro North territory. It took down a signal bridge. Anyone know where this is? Clip is dated 10/10/73

http://www.aparchive.com/metadata/c0039 ... 1&b=e0917a" onclick="window.open(this.href);return false;

That's at Mott Haven (151st Street). More details here: http://pc.smellycat.com/pics/metropolitan/newyork.html" onclick="window.open(this.href);return false;