Big Dig House

Located in Boston, Massachusetts, this home was constructed of steel and concrete salvaged from Boston’s Big Dig, using over 600,000 lbs of materials. The Big Dig is the unofficial name of the Central Artery/Tunnel Project (CA/T), a megaproject that rerouted the Central Artery (Interstate 93), the chief highway through the heart of Boston, Massachusetts, into a 3.5 mile (5.6 km) tunnel under the city.

The home was designed by Single Speed Design, and it won the AIA/BSA (Boston Society of Architects) Housing Design Award. Standing at over 4300 square feet, the structure represents a modern example of what is possible in sustainable building.

Although similar to a pre-fab system, subtle spatial arrangements were designed from highway components. Most importantly, the house demonstrates an untapped potential for the public realm: “with strategic front-end planning, much needed community programs including schools, libraries, and housing could be constructed whenever infrastructure is deconstructed, saving valuable resources, embodied energy, and taxpayer dollars.” The cost is not mentioned, but if the components basically were free, then just cut the basic materials cost (unsure if plumbing was salvaged) from the price of a 4,300-square-foot home to get somewhat close to an estimate.