By Shana Wickett, Globe Correspondent
Scores of people in Medford went without water Wednesday night and early this morning because of a water main break blamed on the city's aging infrastructure.
A small leak occurred on Harvard Avenue near Winchester Street around 4 p.m. Wednesday, followed by a larger leak across the street near Colby Street at about 9 p.m., said John Buckley, the city's public works commissioner. He said 100 to 150 customers were affected.
Crews worked through the night until water service was restored around 8 a.m. today, he said. Crews finished all repair work around 10 a.m.
Buckley said the system's age -- about 80 years -- was the cause of the break and noted that the pipe lies beneath a heavily trafficked area.
"We have a very aging infrastructure," he said.
The break affected residents on Harvard Street, Boston Avenue, St. Clements Road, and Winchester Street, said Peter Kerger, supervisor of the city's water and sewer division.