"SEPTA Trolley Routes 10, 11, 13, 34, and 36 will not operate in the Center City tunnel from 10 p.m. on Friday, July 7 through 5 a.m. on Monday, July 24."

"Work that will be completed includes:

Demolish and rebuild the eastbound 22nd Street platform Replace worn track curved rail at various locations Clean out all pipes, drains, and vent wells Replace four miles of overhead contact wire Maintenance of entire tunnel signal system Heavy cleaning and maintenance at all stations including graffiti removal, painting, and lighting"

“It also helps us prepare for Trolley Modernization – SEPTA’s program to transform the nation’s largest trolley network into an accessible, fast, and easy-to-use system.”