(Step 1: securing a pile down on the riverbed; not easy work without machinery)

Category: CONSTRUCT
Difficulty: (construction)
Time: 720 m minutes
Required terrain: ~ flowing deep water
Result: | deep dock pile
Tools required:
> 1 tool with hammering quality of 2 or more
> 1 tool with digging quality of 2 or more
Components required:
> 1 heavy wooden beam
> 4 spike