HILO, THE BIG ISLAND (Ben Caxton) — Overcrowding is forcing an expansion at The Big Island’s only jail. The Hawaii Community Correctional Center, which processes about 5,000 inmates a year, reportedly held over 400 inmates during the month of October. It was designed for just 226. The overcrowding has forced inmates to sleep on mats on the floor in two-person cells with three inmates, and in an area for “overflow” inmates. The proposal would add a new medium-security building at a cost of $12.8 million.