I wonder if there's money in the bipartisan infrastructure act or the IRA for the feds to handle the remediation at Poplar point and then get a payback from the sale / lease of the land. 110 acres of riverfront on the east coast with easy access to downtown and the major offices of capitol hill sounds like a mega-valuable brownfield that, if suitable to develop after remediation, could be worth a ton. of course, once remediated, there's probably more lucrative uses than a stadium.
For it to really flourish, you'd need to turn 295 into a tunnel and get rid of Barry farms