For reference the pit map for the 2014 WPI District event with 40 teams in attendance is located here thanks to a post by David Givens in a linked thread. With 40 teams with 9x9 pits the pit is fine although no one prefers a 9x9 pit.
https://www.dropbox.com/s/52xf9sc3ud...2014_Final.pdf
To fit the additional teams from Battlecry that was planned to be a 60 team event (ended up being 59) the empty space along the top wall is filled to add more pits and the space in the loading dock was used (roughly 10 teams give or take IIRC). The loading dock is located down a short hallway off the to the top left where it says, "Pit Admin". The pit size was also slightly smaller than 9x9.