The effect of these transactions was to give the New Haven control of a large system of electric railways in Connecticut and Massachusetts, many of them connecting with each other.
Expansion continued with the acquisition by the Consolidated Railway of control of the Waterbury and Pomperaug Valley Street Railway (Waterbury-Woodbury) on April 20, 1907 and the Thomaston Tramway (Waterbury-Thomaston) on May 29, 1907.