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ST. LOUIS, MO (KTVI) - Saint Louis University celebrates a milestone today in construction of a new dormitory. They'll hold a "topping off" ceremony Tuesday afternoon for the new dorm being built at Spring and Laclede. A signature green roof will be lifted into place.

The 43-million dollar project will feature 450 beds, plus classrooms, a chapel and an outdoor amphitheater. It's set to open this fall.

A second residence hall is being built just one block away at Grand and Laclede. It's set to open in the summer of 2017.