As you know, the Smithsonian’s National Museum of American History has been closed down for extensive renovations since Sept. 2006. Though originally slated to open this summer, The AP via WJLA reported yesterday that the museum won’t be opening until at least the fall.

That doesn’t seem too much longer to wait for what should be some welcome improvements to the venue. The blue ribbon commission, whose report preceded the renovation, as well as a complete redesign of the museum’s approach to exhibits and subject matter, criticized the layout, saying it had too many walls blocking visitors’ line-of-sight, making it difficult to orient oneself. In response, a large skylight is being constructed in the atrium, as well as a “grand staircase,” allowing open views of a significant part of the museum.

The building’s entire infrastructure is being upgraded — electrical, heating, ventilation, and alarm systems. Much of this will allow the American History Museum to upgrade their displays technologically, including the environmentally controlled chamber for the Star-Spangled Banner.

Visitors can still see many of the museum’s exhibits temporarily housed at the Air & Space Museum and the Smithsonian Castle.

Image of the future museum atrium courtesy NMAH’s web site