"A 48-inch water main broke around 4 a.m. Tuesday, sending millions of gallons of water rushing through downtown Philadelphia.
A number of Center City streets have been closed, and there are reports of power outages.
The street flooding has forced SEPTA to detour of a number of bus routes ahead of the morning commute, including routes 9, 12, 21, 23, 42, 45. PACTO said service has not been disrupted by the water main break."
Source: WHYY, 07/04/2018
