It's definitely flooding. The building is a wastewater pump station, and the city's retention basin is close by. I'm not sure if this pumps into that or to the wastewater plant, more than likely wastewater. My assumption is the system is full, water is flowing straight downhill into shockoe and what we see here is by design to stop damage. Or something broke, and it's flooding. Flooding is the end result either way. Hah

I'd love to hear from someone that worked/works wastewater.