Plymouth Rock Portico, Plymouth Memorial State Park 

Plymouth, MA

This National Historic Landmark and Monument, is an American cultural icon sheltered by a 1921 granite portico designed by McKim, Mead & White.  BH+A’s project entailed repair and replacement of roofing and flashing, as well as masonry repairs, and incorporated a solar-powered cathodic protection system that stopped the embedded steel frame from rusting. Received 2009 Preservation Award from the Massachusetts Historical Commission.