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The Surprising Efficiency of Canal Locks

Practical Engineering · 2M views · 2020-04-07 · 10:37

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Overview

Practical Engineering explains how canal locks work, including the water-saving basins of the new Panama Canal locks.

On Hacker News

Linked in Panama Canal threads as a clear diagrammatic explanation of how locks save water.

Recommended by 2 HN people across 2 months · HN mentions 2023–2024

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What people said

FriedPickles · 2023-11 · Recommendation

I enjoyed this well made video illustrating how it works: [LINK] And this one explaining how reservoirs can be used to trade-off water consumption for land requirements using side ponds: [VIDEO]

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stickfigure · 2023-08 · Recommendation

For anyone interested in how the new (bigger) locks use less water than the old locks (reclaiming 60% of the water - without pumps!), this old Practical Engineering video explains with diagrams: [VIDEO] They store the water in a series of basins at different levels, and use those basins to fill the portion of the lock below. It's more obvious with diagrams.

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krisoft · 2024-01 · Reference

> without saying anything about which one is used how and where I agree that it is strangely edited. But to help you out with the info: both are used on the Panama canal. There are two paralel sets of locks, the older ones and a more modern ones. The more modern ones can fit a bit bigger ships and they are more efficient with water. This is a wikipedia page about the expansion project (the one which also constructed these more modern locks): [LINK] And here is a video on how one can construct a “water saving lock” from Practical Engineering: [VIDEO]

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