BY REBECCA BENNETT  — As of 1:40 p.m. Friday, a substantial water main break in the 5100 block of Baltimore Avenue has both southbound lanes of Route 1 closed.

It all began just before 7 a.m. this morning when an 8-inch main broke near Gallatin Street.  Both northbound lanes were closed at first, and then we observed one lane was getting by each way.  At this time, southbound traffic is being diverted across the Alternate Route 1 bridge.

A spokesperson for the Washington Suburban Sanitary Commission (WSSC) said crews shut down the water main at approximately 11:30 a.m., which could last for six hours.  Approximately 12 customers are affected, which WSSC said could include businesses or apartment buildings.

Arrow Bicycle was open, it said. Franklin’s Restaurant, Brewery and General Store did have to shut down for several hours today, as WSSC did eventually need to shut off their water.