A colorful boiler is a happy boiler! RotoGrate systems remove ashes from the boiler firebox by revolving the bottom of the system to let the fly ash drop into a hopper. This greatly increases boiler efficiency.
Inside a launch building you can see how the roof would split in the middle to allow the rocket to be raised into launch position.
The building in the foreground–the old control booth–was arsoned in 2009.
One of a pair of poles to hold the electric lines for the streetcars entering and exiting the tunnel.
There big filters helped the mill sort through the flour, for additional milling, for example.
The sun sets in front of a huge concrete building—about four times the size of the power plant. Probably a corn storage bin from an ethanol operation that ran here in the 1980s.
Sluice tables stretch into the darkness.
Two bin signs criss-cross in the North Annex.
Light-painted to show off the beautiful radar equipment inside and Park Point across the bay.