sentences:  The estimated costs for the games in Halifax were projected at C$800 million, to which the federal government committed $400 million in the fall of 2006.Leaked information projected these costs could escalate to $1.6 billion as the bid committee prepared for submitting the final bid information in May 2007 to the Commonwealth Games Federation.A major cost was projected to be the construction of a 50,000 seat stadium and sports complex, including an athlete's village, on former Department of National Defence property at Shannon Park on the Dartmouth waterfront.