A&M System-University of Texas system low density library began construction in June 2012. The facility is designed to hold one million books and eliminate redundancy in the collections of the two university systems. In August 2019, the Texas A&M University System Board of Regents approved the construction of a $130 million combat development complex for the United States Army Futures Command. The facility will include a "one-of-a-kind, kilometer-long tunnel" used for hypersonic research. Residential life During the 2006 fall semester, 20.5% of the student body lived on campus in one of two distinct housing sections located on opposite ends of campus. Both the Northside and Southside areas contain student dormitories, or residence halls. While some halls are single-sex, others are co-educational. Usually students of different genders live on alternate floors, although the Corps dormitories and Hobby Hall are segregated by room or suite. Residence hall styles vary; while many halls offer only indoor access to individual rooms, access to the rooms of "balcony halls", comes from an outdoor balcony. Room sizes vary by building, and halls with larger rooms including en-suite or private bathrooms, while halls with smaller rooms have a common bathroom on each floor. Several halls include a "substance-free" floor, where residents pledge to avoid bringing alcohol, drugs, or cigarettes into the hall. While the university provides a variety of dining facilities, non-Corps students are not required to purchase a meal plan. Northside consists of 17 student residence halls, including the three university honors dorms. The halls are located near Northgate, a local entertainment district featuring the popular bar, the Dixie Chicken. The campus dining establishments Sbisa Dining Hall and The Underground are located on Northside. Some halls have unofficially claimed tables within the Sbisa Dining Hall and many halls congregate for dinner at a specific time each weekday. Southside contains halls both for the Corps of Cadets members and "non-regs". Non-corps halls in this area center around the Commons, a hub for activities and dining. Southside has two Learning Living Communities, which allow freshmen to live in a cluster with other students who share common interests. Facilities for the Corps of Cadets are located in the Quadrangle, or "The Quad", an area consisting of dormitories, Duncan Dining Hall, and the Corps training fields. The Corps Arches, a series of 12 arches that "[symbolize] the undying spirit of the 12th Man of Texas A&M", mark the entrance to