Here's a start at least. I'm not totally sure about the "lock-in no. 1" part, but that's the best I could make sense of it.

The "All" verses repeat continually, so I stopped notating it after its first time. But it remains repeated after every line break.

Lead: Some claim that we are land-locked kids
All: Water, boys, water!
Lead: But I don't find that quite so clear
All: All around us, water
Lead: For nearly two blocks from my home, the Mississippi southward roams
All: Flowing to the sea (x3)

Lock-in Number One's not very large
It only holds one tub, one barge
But nine miles down the St. Paul part, that's where the heavy traffic starts



Stopped around a minute 25 seconds in.