Washington Square Arch New York, New York BCA served as conservation consultant to sister company, Archa Technology, Ltd. during their restoration of statues and arch at Washington Square Park. Materials: Stone Related services: Field Testing, Lab Testing, Specifications BCABCA New YorkBCA New EnglandBCA SouthPortfolio: Parks Allenbrook, Chattahoochee River Nat'l Recreation Area Bronx Zoo Cape Lookout Lighthouse Dry Tortugas Light Station Orchard Beach Bathhouse Pemaquid Point Lighthouse Prospect Park Boathouse Union Square Pavilion Wave Hill Central Park Obelisk Joyce Kilmer Park Conference Park House Central Park Bridges Washington Square Arch Cleft Ridge Span Bridge