I read that once but had forgotten it until you reminded me, so thanks! I was thinking that aqueducts for drinking and irrigation water usually wouldn't be nav

I read that once but had forgotten it until you reminded me, so thanks! I was thinking that aqueducts for drinking and irrigation water usually wouldn't be navigable because their waterway is too small (too shallow or too narrow), or, for drinking water, is sometimes covered or enclosed. Edit: For example, EBMUD has a major aqueduct coming from https://en.wikipedia.org/wiki/Pardee_Dam https://en.wikipedia.org/wiki/Pardee_Dam (https://www.ebmud.com/files/cache/f49ff54bdbea934d88a2bfee4075106c_f659.jpg https://www.ebmud.com/files/cache/f49ff54bdbea934d88a2bfee40... -- none of it navigable or even close!) while SF Water has a major aqueduct coming from https://en.wikipedia.org/wiki/O%27Shaughnessy_Dam_(California) https://en.wikipedia.org/wiki/O%27Shaughnessy_Dam_(Californi... Both of these use enclosed pipelines and spend a significant portion of their journeys underground! I think L.A. has something similar. Edit 2: Yep, the enormous and also totally non-navigable https://en.wikipedia.org/wiki/Los_Angeles_Aqueduct https://en.wikipedia.org/wiki/Los_Angeles_Aqueduct