[citation needed] On January 29, 1999, Archbishop Donoghue broke ground onto a new archdiocesan high school, Blessed Trinity.

Construction was briefly halted by the discovery of a shallow grave of Confederate soldiers from the Civil War, but was ultimately resumed and completed in 2000.

[citation needed] Blessed Trinity opened in August 2000 with a total enrollment of 219 students; 164 freshmen and 55 sophomores.

[6] The athletic program kept pace with the school's growth, and by the fourth year fielded 19 varsity teams, which was expanded to 22 in 2004–2005 with the addition of competition cheerleading and boys' and girls' lacrosse.

Past fall comedies have included The Werewolf's Curse (2012), Noises Off (2013), The Birds: A Modern Adaptation (2014), Reckless (2015), Figments (2016), and Puffs (2020).

[citation needed] In the fall semester, an elite group of the school's most talented performers rehearse a particularly difficult piece.

These have included Into The Woods (2019), The Jungle Book (2018), Chicago (2017), 12 Angry Jurors (2016), Little Women (2014), Working (2013), Metamorphoses (2012) and The Dead (2011).