The modern campus features the Jonsson-Rowland Science Center (J-ROWL) (1961), Materials Research Center (MRC) (1965), Rensselaer Union (1967), Cogswell Laboratory (1971), Darrin Communications Center (DCC) (1973), Jonsson Engineering Center (JEC) (1977), Low Center for Industrial Innovation (CII) (1987), a public school building which was converted into Academy Hall (1990), and the Center for Biotechnology and Interdisciplinary Studies (2004). Tunnels connect the Low Center, DCC, JEC and Science Center. A tenth dormitory named Barton Hall was added to Freshman Hill in August 2000, featuring the largest rooms available for freshmen.