@QUEENNUTS, if you need help making your water flow around the channel you've carved out, you can do so by stepping the channel down one slab at a time each time the water stops. There are examples of this in the aqueducts above your build.
If you're still unsure, grab either @Spoygg, @Xanotos or @Jeffrotheswell and they can talk you through it in-game. Or me if I'm around, though I'm not as adept with water physics as the other three.
I also noticed the entrance to your build is off-center. I assume it's because you wanted to match up with the road that was already there. If you need the road making one block smaller or wider (to make it an odd number), just ask.