In the early 1970s, Maine Medical Center undertook the construction of a new, multi-story parking garage. The project spanned multiple years, and continued through the winters. Building crews first created the infrastructure to support the garage, installing pipe and conduits, building roads, even changing the topography of the site. A portion of Bramhall Hill was cut away in order to level a lot on which to erect the new parking garage. The earthmoving created a six-story cliff overlooking Congress Street. MMC’s facilities engineers designed a 200-foot-long, 65-foot-high retaining wall as part of an earth retention system.