Well Known Folk Song: I've Been Working on the __

This page is the CodyCross answer for the clue below from Germany, Group 2181, Puzzle 5 (Fairy Tales).

Question is: Well Known Folk Song: I've Been Working on the __

and the answer is: RAILROAD

Word Meaning:

RAILROAD — (chiefly US, Philippines) A permanent track consisting of fixed metal rails to drive trains or similar motorized vehicles on.

Definitions from Wiktionary.

Well known folk song: I've Been Working on the __ — CodyCross Answer | CodyCross Solutions