In February 1913, he became general manager of the New Haven, which through the acquisition of nearly 100 smaller railroads had become the dominant road in New England.
Bardo sought a sound reorganization plan for the NYW&B, but died of a heart attack on August 3, 1937.
On leaving the New Haven, Bardo accepted a position as vice president of the newly organized American Brown Boveri Electric Corporation, which had just acquired ownership of one of the largest American shipyards, the New York Shipbuilding Corporation of Camden, NJ.
In 1929, he was the first witness called to testify before the Senate Naval Affairs Committee in an investigation into collusion in the awarding of Navy shipbuilding contracts.
But by the fall of 1935, Bardo was opposing a renewal of the National Recovery Act, calling on the association's members to fight "propaganda" and pushing for greater political activism against "the new economic order proclaimed by President Roosevelt."