There was a discussion on another site several years ago including comments by someone familiar with the
area who had tried to locate the grade and at the time some traces of it passed behind a McDonald's and a
cemetery but much had been obliterated by construction over the years. I've been by there in the past year
or so and it didn't even occur to me to look for it but stumbled across another online conversation that
reminded me of it. Good luck finding anything!