The Washington Suburban Sanitary Commission (WSSC) is replacing a one-mile stretch of a 24-inch aging water main and valves along Veirs Mill Road in Rockville.
The work will require some lane closures during the day and at night between September and December. When lanes are closed at night, they will reopen by 5 a.m. Two electronic signs on Veirs Mill Road notify drivers of upcoming work.
The original water main is 58 years old. The project began in April 2013 and is expected to be finished in December 2014, weather permitting.