By Warren Russo
---- — MERRIMAC — A water main on Broad Street broke Wednesday around 5:30 a.m. and was repaired by 10:30 a.m., according to DPW director Bob Sinibaldi.
This was one of the older cast iron water mains in town, he said. Since it rested on a sand substrate, it was vulnerable to vibrations caused by truck traffic passing over it. Sinibaldi said the recent freeze-thaw cycle exacerbated this vulnerability, contributing to its failure.
He said only a handful of homes were affected, and service was restored without further incident or damage.