ST. LOUIS, MO.- The Saint Louis Art Museum announces significant progress after one year of construction on its more-than-200,000-square-foot, David Chipperfield–designed expansion in Forest Park. The perimeter of the new 300-plus-space parking garage is completely enclosed and floors are being constructed. In the Main Building crews are preparing for the construction of a new central staircase, which will connect Sculpture Hall to the Lower Level and a new public concourse that will integrate the new and existing facilities, including the newly renovated Museum Shop, Auditorium and Education Center. The Level 1 concourse will also connect with an expanded cafe, as well as link visitors to the new underground garage. In preparation for this work, a construction barrier has fully enclosed the south end of Sculpture Hall. The 17-foot-tall structure will remain in place until spring 2011 while work on the new central staircase