Marsh Drainage
A system of drainage ditches and fillings to make the fertile marsh for suitable for agricultural activity.
requiere
- Blacksmith
- Carpenter
- 20000 horas de trabajo
- 1000 madera
- 150 metal
- 100 bienes
- 600 minimum population to construct
- Full efficiency requires 1200+ population
- Can only be built on marshes.
requerido para
provee
- madera bono de producción
- comida bono de producción
