An expensive way to create a new riverbed when the naturally occurring ones are insufficient. Use excavators as a last resort as they poison the land around them.
The Excavator is a building in Terra Nil that excavates a straight line through any tiles in-front of it and replaces those tiles with Dry Riverbed tiles. The Excavator is part of the Tier 1Buildings. They can only be build on ground and require power to work.
