Congress Park is the section of SSR that's closest to DTD. I'm not positive, but I think the building with room #s 1101-1436 is closest. If memory serves me, there were pathways from several of the buildings in Congress Park that lead to the walkway to DTD.

The best way to request a specific location is to call Member Services and have them add it to your reservation. Your best bet is to request Congress Park and a room as close to the DTD walkway as possible, rather than ask for a specific room number. Hope this helps and have a great trip!