(Portsmouth, NH) - The Portsmouth Water Department will be doing work on Islington Street, forcing the three-hour shut-off starting at 9:15 tonight.

City of Portsmouth

Construction crews will be working to abandon some of the old water mains on Islington Street and some side streets between Bridge Street and Cabot Street.

Crews will turn the water back on to areas as quickly as possible, but residents may notice some discoloration for a few minutes.

The work is expected to be completed shortly after midnight.