MacArthur Bridge in St Louis - Trains Magazine

On the Mississippi River at St Louis there’s the MacArthur Bridge, which is a railroad bridge and used to have a vehicle deck for auto traffic until that was closed in 1981.  Currently the MacArthur, along with the Merchant’s Bridge upstream, is used by freight railroads and Amtrak to get in-and-out of St Louis, MO and from-and-to Illinois.  Someone on the Historic Bridges of the U.S. website claims this bridge would be replaced in or around 2015.  Though the poster might be confusing the 2015 date with the completion of the future I-70 highway bridge, would the current owner, the Terminal Railroad Association, even pay to replace the MacArthur?  I guess a replacement bridge will probably cost $100 or more  The MacArthur is a high-span bridge, as opposed to the more common low-span swing or a lift-span. The Merchant’s and the highway-only McKinley are older than the MacArthur, but are in better shape.