One of the more specialized areas that DEDC provides engineering and design services is for buildings of cultural and historic significance. These projects are particularly challenging because they require the design team to preserve the essence of the buildings and environment while incorporating modern engineering, design practices and improvements in a structure that was not originally designed for these improvements. The challenge is to integrate design that balances historic significance with current needs; balances aesthetics, cost, constructability, and reliability; and creates an environmentally responsible and superior workplace.