FA’s built-in DropEffect™ technol- ogy reduces surface absorption, helping to repel water, dirt and grime from penetrating grout joints. Work on the Manhattan-to- Brooklyn tube of the tunnel was completed in March 2017. During the 2017-2018 timeframe, the Gibraltar crew repeated the entire process, heading through the other tube of the tunnel, from Brooklyn back to Manhattan. To ensure future protection from flood- ing, 44,600 pound bronze flood gates were also installed at either entrance of the tunnel. The 22˝ thick, 29´ x 14´ gates were made by Walz & Krenner, Inc., of Oxford, Connecticut, a marine-based-com- pany specializing in the design and supply of custom watertight clo- sures. MAPEI was honored to help in the restoration of one of New York City’s most historic tunnels. *According to the Metropolitan Transportation Authority (MTA) website. Source: http://www.nycroads. c o m / c r o s s i n g s / b r o o k l y n - battery/#HFtSZKQUkU0zI7P6.99 FEATURE: MAPEI helps restore and repair historic Hugh L. Carey/Brooklyn-Battery Tunnel The Chroma tiles grouted with Ultracolor Plus FA. The Hugh L. Carey Tunnel is a 9,117-foot tunnel under the East River that connects Brooklyn to Manhattan. 42 TileLetter | September 2018