Not sure what the objective is. The game title and description says its to unclog all of the canals, but it also says you don't want the river to get too high. I just unclog some canals until the river starts carrying the construction worker. Eventually the river got so high the bottom of the river was visible, and then eventually was offscreen entirely. I like the weight the aiming controls have to them though!

interesting mechanic, I will say that i could see a hard edge on the left side of the water like the sprite wasnt set to stretch properly (i use an ultrawide) otherwise good work!