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The Great Thames Barrage

Chapter 7: Tidal Wave.
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About This Book

An engineering proposal argues for construction of a barrage across the lower Thames between Gravesend and Tilbury to create a non-tidal inland reservoir and maintain consistent deep navigation to central London, eliminating dredging, tide-waiting, and grounding, and improving safety and loading operations. The pamphlet catalogs complaints about inadequate depth, delays, overlapping authorities, high costs, and hazardous navigation, critiques dredging and administrative reforms as insufficient, surveys analogous international proposals, and advocates dockisation with locks and sluices as a comprehensive remedy while discussing technical, economic, and operational implications.

Tidal Wave.

The curved lines (in various forms of dotting) represent the levels of the surface of water at various states of Spring tides and clearly show the tidal wave which ascends the river and by its momentum and volume raises the high-water level at the upper end several feet above that at Gravesend.