A poor seismic safety rating and general deterioration prompted the University of California, Berkeley, to undertake $300 million in renovations for the California Memorial Stadium, built in 1913. Because it is sited above an active fault, engineers treated it as a series of discrete blocks, each capable of accommodating up to 2 ft of vertical and 6 ft of horizontal movement during an earthquake. A network of five shoring and underpinning systems preserved a historic facade, rising 90 ft high in places, as crews demolished interior spaces. The facade provided a shell for 50,000 cu yd of new concrete.