the 43 bus route runs along spring garden and will get you to northern liberties and fishtown. it runs sort of late, but not closing time late. the 17 bus merely mimicks the BSL route. the 15 runs all night from NL/Fishtown/Port Richmond oin Girard but I don't know what broad st is like between girard and green at that time of night. I've done it before (NYE when cabs are scarce) but not regularly.

__________________
"You down wit OPM?"
Fumo: "Yeah, you know me!"