Black plaque № 71888

London, England, United Kingdom

Hydraulic Sluice. The sluice gate inside this pit was raised and lowered using high pressure water. Raising the sluice allowed water to flow in or out of the lock to balance the levels on both sides of the gates. — Princes Court, Greenland Dock

Listen to the audio guide for Black plaque № 71888 Free on WIP — starts by itself when you arrive, even with the screen off