Round RCP, or reinforced concrete pipe, section of a storm drain. The tubing on the wall is part of a water-flow meter. Digital original, similars available.
Concrete "steps" at the base of a spiral or helix dropshaft, the "third" such helix in the West Kittsondale storm drain, Saint Paul, Minnesota, lit by several dozen candles. The spiral-staircase design is one of several possible methods of creating a major change in stormwater elevation while minimizing erosion to the drain, but may well be unique to Saint Paul. 35mm transparency, 4000dpi digital files available.
Two-hundred candles illuminating part of the twenty-foot-tall, arched limestone block portion of the Phalen Creek storm sewer, under Saint Paul, Minnesota. The drain was created to, in part, bury Phalen Creek to permit the construction of a railroad right-of-way into downtown in the early 1900's. 6x6cm negative, high-resolution digital files, and prints available.
As above - candles in Phalen Creek - only on 35mm slide film, with a wide-angle lens and different perspective. High-resolution TIFF also available.
This is a digitally manipulated version of another photo taken in the Phalen Creek tunnel. Lit by hundreds of candles and two #5 flashbulbs. Shot on 6x9 negative film, available as digital only, up to 10x8 inches at 300dpi, or prints.
Two men provide scale at a junction in a concrete storm drain. Digital original, similars available.
An urban explorer with a flashlight stands in the distance in an arched limestone storm drain tunnel, as a connecting pipe gushes water and sunlight filters thru a hatch in the tunnel roof. High-resolution digital original, similars available.