According to the BRA website, it will be 242 feet tall. That is likely the zoning height (i.e., to the top of the last occupiable floor) so it is probably taller.
Please be advised the Boylston Street entrance at Prudential Center is temporarily closed through July 2 due to construction. Please see alternate entrances below. We appreciate your patience as we make improvements. Thank you!
https://www.facebook.com/shopsatpru...2942570059368/936027203084230/?type=1&theater
The nearest alternative entrance, not mentioned, is through the Mandarin hotel lobby - up the stairs and out into the new-ish "Newbury Arcade."
The Sheraton lobby is also a very useful alternative if coming from the T.
Since when is it "East" Ring Rd?
... Highlighting the wind patterns of the site, a series of stainless steel woven light columns define the plaza. Wind vains rotate on the light columns and signal the intensity of wind with changing color that indicate greater and lesser intensity, turning the plaza into a living wind diagram. All the lighting is powered by wind turbines that define the top of the Prudential Tower and highlight the sustainable nature of this project.