Ok, fellow rail nerds, this is pretty cool. I wonder how long this would take without this awesome piece of machinery! From the Union Depot facebook page:
In preparation for laying rail at Union Depot, crews are welding 39-foot
sticks of rail into long strings. In this video, one of our rail
workers shows us how the sticks are joined together, called a flash-butt
weld. Watch one done in real time.