[iheartphilly]

^
Philly's population in the 1950's was more than it is now. I wonder if car ownership back then was lower or higher. But in any case, with that type of population, 3 or 4 lanes in each direction would of made more sense. Blasting the rocky parts to make the additional lanes and adding highway bridges should of been in the cards, but wonder if there is a documented history on whether it was even considered and if there were listed constraints.