Close up of entrance.
View of the front of the bunker from Old Marlborough Rd.
Looking through the blast door into the facility.
Multi-ton blast door.
One of three redundant generators.
Numerous automatic system will "lock up" the facility
upon detection of a nuclear detonation.
A common sight at hardened facilities: plumbing mounted
on springs to protect the piping from vibrations produced
by earthquakes or nearby detonations.
The facility includes a large Emergency Operations Center (EOC) to coordinate emergency response.
Large transformers mounted on springs.