In the jobsite trailer for the $121-million renovation and expansion of the University of Virginia’s Alderman Library, Skanska project executive John Calvin points to copies of 1937 construction photos showing the 100,000-sq-ft horseshoe-shaped structure being carved into a hillside below the school’s historic Rotunda and Academical Village.

Despite remaining operational during construction, Baltimore’s central Enoch Pratt Free Library stays on track to finish six months early