Dry Docks of London (1909) - GG Archives
There are two in the Royal Albert Dock. (1) Length 501 feet, 85 feet wide at cope, 66 1-3 feet wide at entrance, 22 feet on sill at Trinity High Water. (2) Length 408~ feet, 77 feet wide at cope, 64~ feet wide at entrance, depth on sill 22 feet at Trinity High Water.
One at Millwall Dock, 450 feet long, 65 feet wide, and 20 feet over blocks at Trinity High Water.
Two at Tilbury Dock-the largest in the Port-each capable of being used either as a single dock, 850 feet long, or as separate docks of varying lengths, having a depth on sill of 35 and 30 feet respectively at Trinity High Water.
The two docks are 70 and 60 feet wide respectively.
The division of each set is made by means of caissons.