Downtown workers and residents got a jolt this morning when two manholes blew up at Summer and High streets shortly before 8:40 a.m. One person was injured.
175 Federal St. was evacuated. 10 High Street, in front of which the manholes erupted, was as well. The Boston Fire Department reports the explosions blew out windows in that building. An Eversource crew arrived to examine a transformer vault in the basement of 10 High; workers had to wait until firefighters with fans were able to bring down the carbon-monoxide readings there.
Watch the second explosion.
A man watching the explosions from 99 High St. reports:
Saw a manhole cover fly 100+ feet in the air and then flames shooting out. Flames were short, about 6 feet high.
Flaming manholes heat up Boylston Street outside the Pru.