Amtrak began the Three Rivers on September 10, 1995, as a replacement for the discontinued Broadway Limited. The train originally ran between New York and Pittsburgh, extending a New York–HarrisburgKeystone Service train. Using train numbers 46/47, it exchanged mail cars with the Chicago–Washington, D.C.Capitol Limited in Pittsburgh, while through passengers disembarked and changed trains.
Through service began on February 1, 1996, by coupling two Three RiversAmfleet coaches to the Superliner consist of the Capitol Limited. Passage between the single-level and double-level cars was facilitated by a transition dorm car.[2]: 27
Amtrak ended the switching operation on November 10, 1996, in favor of extending the Three Rivers to Chicago as an independent train. In doing so, they restored the Broadway Limited's numbers (40/41), albeit neither its full dining service nor its sleeping cars due to equipment shortages and an unfavorable schedule.
On April 1, 1999, Amtrak added a sleeping car to the Three Rivers, using four previously stored Heritage Fleet sleepers that they had restored for $250,000 since no Viewliners were available. The last standard 10-6 sleepers operated by Amtrak, they required a Federal Railroad Administration waiver to operate because of their direct-dump toilets. When the waiver expired in October 2001, Amtrak retired the Heritage sleepers and replaced them with Viewliners, which had since become available.[2]: 35
Service over the former route of the Three Rivers east of Pittsburgh is now provided by the Pennsylvanian. While its route west of Pittsburgh to Hammond–Whiting is no longer served by passenger trains, the Floridian still connects Pittsburgh and Chicago, albeit on a different route via Cleveland.
Equipment
The Three Rivers used Amfleet coaches and either Amfleet or Horizon dinettes in addition to the later Heritage sleeper. At the height of Amtrak's experiment with mail and express business, a typical late 1990s Three Rivers had 4–6 passenger cars and upwards of 25 mail cars.[2]: 31