1947 House Bill 1321. An Act Creating A Boston Regional Authority Providing For Its Powers And Duties, Authorizing It To Construct Structures On Lands Of The City Of Boston For Pedestrian And Vehicular Traffic, To Maintain And Operate These Structures And Charge Tolls Thereon And To Issue Bonds; Providing For The Payment Of Said Bonds And Authorizing The City Of Boston To Grant The Use Of Its Lands And To Acquire Lands Therefor.