Construction was delayed by World War I and the Halifax Explosion . However , by 1928 the Halifax Harbour Commission oversaw the completion of ocean terminals , a large complex of freight piers , grain elevators , a new train station and a , two-story shed that would be home to Pier 21 . The shed had an area of for freight , and was built of steel truss-work with brick walls and wood roofs . It was divided into Pier 20 , 21 , and 22 , and faced a long sea wall which could handle the biggest ocean liners in operation
Halifax Explosion
Halifax Explosion
Pier 21