Bison Stadium underwent dramatic transformation during the summer of 2008. The facility changes included placing new artificial turf on the playing field, a surface called FieldTurf. In addition, lights were installed, a new rubberized track surface was put down around the field, as well as a steeplechase pit and jump and new areas for pole vault, high jump, long/triple jump and throwing events. Due to the new turf field and lights, the entire Bethany community can make use of the facility. In addition to the Bison varsity men's and women's soccer and lacrosse teams being able to play contests on the field, the school's intramural program and walkers from the Bethany area are able to take advantage of the renovated facility.
In the summer of 2009, the renovations at Bison Stadium continued with the completion of a new locker room, which is attached to Hummel Field House. The addition, which covers 1,800 square feet, contains 90 state-of-the-art, NFL-style open lockers with lock boxes on the top and the bottom. In addition, the walkway from the new locker room to Bison Stadium was paved. The project was completed in time to welcome the 2009 Bison football team, the largest in school history, to summer camp.