The hub and the office buildings flank the complex's heart and soul: the $700-million National September 11th Memorial and Museum. The local Lend Lease is building the memorial and museum. Currently, all other project teams are standing aside so that 80% of the eight-acre memorial will be able to open on Sept. 11.
The building team for the eight-acre urban park of the $700-million National September 11 Memorial & Museum—the emotional focal point of the $19-billion World Trade Center redevelopment in Lower Manhattan—is obsessed with something as mundane as surfaces: ground, water, stone and metal.
The memorial team is giving extra-special care to the heart and soul of the project: the 2,983 names of the 9/11 victims etched into the surface of bronze-covered parapets bordering each of the memorial's pools. The pools—each of which is 31,264 sq ft and contains 485,919 gallons of water—are set into the footprints of the original 110-story Twin Towers, destroyed by the terrorists.
While each pool has a pumping system powerful enough to recycle 52,000 gallons of water per minute, it is the surface of the nearly 1,600 lineal ft of parapets that had to be robust enough to withstand rain, scorching heat, snow and ice as well as the wear and tear of three million annual visitors. For the comfort of the millions of hands that will touch the etchings, the parapets have a heating and cooling system.
Go to ENR to read more on the 9/11 memorial.
