[American Constitutionalist]

Thackney I don't know all the engineering and such, but ?
I saw a video recently in how they make those drainage corrugated steel tubes.
These drainage corrugated steel tubes are made on a machine where they take a roll of steel and send it into some kind of break ? press ? that forms the corrugations.
Then it is some how extruded out of the machine and then it rolls the steel into the tube form.
From that point it is still on this machine that welds it.
All of this is done on one huge machine and then when it is at it's proper length it is cut.... cool to watch.
Could they build a pipe line like this ? or does the pipe line piece by piece and the steel tubes have to be steel tubes with welded straight seams ?
What I am hoping ? that they can build the Keystone pipeline in record time like they did with the Empire State building during the depression and 1930s.

[thackney]

Rolled welded pipe is used in some pipeline application. I am more familiar with seamless pipe for higher pressure applications, but I am not an metalurgical specialists. I don't think the pipe fabrication is going to be an issue delaying the pipeline.

It may even be already fabricated waiting for approval to install. This line has been in the works for a long time.

[thackney]

Actually, at this point I would be more conserned with the Pump Station equipment. That size stuff has a long lead time.