Because the shaft is nearly vertical, rocks riding inside shift a lot. To keep them from breaking down the door and raining into the shaft.
Similar Images
...based on the tags: carts, mine-shafts, rubber, rusty, tracks...
The roof could be vented when locomotives were running inside.
Now, to add a human scale.
The elevator tower seems to have been built with expansion of the dock in mind.
A natural reaction with this kind of view.
This low brick building is interesting to me.
When the factory’s production line was up for auction, many parts were removed, crated and labeled with big painted numbers to ease their removal by buyers. Not everything sold, however, so not one dark corner of the factory seems without a pile of dislocated industrial junk.
A wrecked pressure gauge and employee time cards.
The first 800 or so feet of the tunnel is finished with reinforced concrete. The test is raw stone. This is the spot where it switches. Side note: nailing this shot on film is one of my proudest light-painted moments.
Behind the factory was an old truck, blocked in by overgrown trees on one side and the buildings on the other.