Note 24 — Introductory material (continued 3)
Reading edition
The Holland States undertook, in 1885, the improvement of the navigable highway between the Rhine and the Schie. Whereas, up to 1648, the rivalry of the cities tolerated navigation above the dam only, and later allowed at this point a lock only 3.80 m. wide and 2.20 m. depth of water, they caused this lock to be built at the same place with a breadth of 7 metres which is spanned by movable bridges.