Anchorage Sewer System

I doubt if I'll ever explore sewer tunnels, unless I visit Minneapolis or someplace where they actually lead to something more interesting than a lot of shit.
These are just some photos of sewage equipment and stuff around town, Maps of the system could show up depending on how lazy I am about scanning.

A helpful sign showing the 5 stories of sewer pumps hiding under this little building

According to the maps this is a "chlorinating tower". I don't know why the chlorine is added so close to the ocean outfall.
The bunker is apparently some kind of valve control station on the hill above the tower. Erosion has exposed some wires.

The main treatment plant near the airport