Download:
https://mods.factorio.com/mod/CanalBuilderAdditions:
Waterfill - replace dirt with waterSwimming - Players, vehicles, and biters can cross shallow water
Balance:
Waterfill can only be placed adjacent to existing bodies of water - no spawning water from nowhereWaterfill only produces shallow water, which biters can cross
Water will slow down biters (and players) roughly 50%
Minimum 3-tile width, since this can be used as a high-throughput water pipe for reactors
Let me know if you're able to translate for other locales!