Who were the stakeholders of the big dig?

The stakeholders of the Big Dig included the Massachusetts state government, the City of Boston, federal agencies, local businesses, and residents affected by the construction. Additionally, engineering and construction firms played a significant role, as did environmental groups concerned about the project's impact. Public transportation agencies also had a vested interest, as the project aimed to improve traffic flow and accessibility in the area. Overall, the Big Dig involved a complex web of interests and concerns from various parties.