MTA workers spent Thursday night scrubbing the Court Street R train platform and checking subway tracks and signals for damage after a 12-inch water main burst on Montague Street in Brooklyn Heights. Regular train service was restored by 8:30 p.m., according to the MTA, but 100 local residents and 25 businesses were without water service overnight while the Department of Environmental Protection made repairs.

Hurricane Sandy repair work to the Montague tube helped the smelly brown water drain faster, according to MTA spokesman Kevin Ortiz.

All but three buildings have water service restored as of this morning, according to a DEP spokesperson. There is, however, still a very large hole on Montague Street.

The break, which occurred outside 158 Montague Street between Clinton and Henry Streets, started flooding infrastructure just before 4:00 p.m. on Thursday. Here's a glimpse of the overnight response.

DEP crews are still on the scene this morning, completing repairs.