Maybe it's just me or maybe trees are now hiding the guard tower but these don't seem to be taken from same spot of canal. However, the first picture w/ water showing does look like the same location just standing on opposite bridges as the Aug 15th picture. from the post directly above this one.
2-16-2019 [22:15:40] Digging increased by 0.000008 to 100.000000
Tackling the mining in a new way - a combination of shaving on an angle and do levelling sweeps. Takes me about an hour to shave it down by 20 dirt - so in one night I can bring it down by 40 dirt. So every 3 - 4 days I can get 8 tiles to water level.