The Catholic University of America’s Father O’Connell Hall recognized by ENR MidAtlantic with Best Project in Renovation/Restoration category. This was a very unique and challenging project as each wing had different structural systems. Virtually no original construction documents existed, so the team encountered many unforeseen challenges which required quick and cost-effective solutions. The building’s basement-level slab was structurally unfit to brace new retaining walls. We replaced a large area of the slab, and also re-sequenced subsurface grading excavation work to reduce the need for temporary shoring.