Water depth puts some restrictions on various action:
* [[Paving]]: At water level (+/- 0)
* Passable by [[large cart]]s: Two Three dirts below water level (-23)
* [[Mining#Opening a mine|Tunneling]]: Four dirts below water level (-4)
* [[Digging]] or [[Mining#Surface mining|Surface mining]]: Up to five dirts below water level (-5)