Many businesses saw the advantages of the new enclosed docks. The East India Dock Company (formed in 1803) was given permission to build another dock at Blackwall to serve the vast shipping needs of the East India Company.
The docks were located on the Thames between Blackwall Reach and Bugsby's Reach. East Indiamen traded between Blackwall and Calcutta or other Indian ports, laden with the merchandise of two civilisations.
The tea trade alone was worth £30 million a year to the company. Tea was one of the main comsumer goods brought to Britain from the East.
The trade expanded rapidly between 1750-1900. Tea-drinking began as an expensive and fashionable pastime in Britain. But as tea became cheaper more people could afford it.
The East India Docks consisted of parallel import and export docks with a basin and locks connecting to the river. The basin allowed lots of ships to gather together to avoid the delay of going through locks.
All ships arriving from the East Indies and China had to unload in the East India Docks. Likewise, ships heading for those parts had to load at the docks. The docks could handle 250 ships at a time.
Grand opening at Blackwall
The new docks were opened with great celebration in August 1806. A newspaper report from the time stated:
These docks consist of an entrance basin, of nearly three acres (1.2 hectares); a dock
for inward-bound Indiamen, of nearly 18 acres (7.3 hectares); a dock for loading outward-bound Indiamen, of nearly nine acres (3.6 hectares), making together about 30 acres (12 hectares).
There is an entrance lock, and two communication locks, capable of admitting the largest Indiamen, and his majesty's ships of war, of 74 guns. The depth of water at ordinary spring tides is 26 feet (8 metres). The whole premises are surrounded by a boundary wall 21 feet
(6.3 metres) high; the quays are very spacious, being no less than 240 feet (72 metres)wide.