Both portals get clogged with ice in the winter. In the summer, the ceiling is always dripping. Mamiya GA645 / Kodak Pro 400
Chester Creek, where it was forced to dip below the circa-1970s I-35 tunnels.
Check that waterfall!
Roughly below the parking lot for the Rose Garden.
The upper sections of Brewery Creek have stone floors and brick ceilings. It’s beautiful–for a sewer.