So I ended up installing the new Lazy Newb Pack over the top of my existing DF folder. Rather than keep it and hope there were no bugs, I started over from scratch. The LNP wouldn't start, so I just ran it from the DF folder. I couldn't wait to try v43.05 any longer. Still got a graphics pack! That's the main crutch I like to play the game. Although I do miss DwarfTherapist a little. It was off to a great start; The usual workshops were churning out their crafts and after a few migrant waves, some dwarves even began idling around. It was now time to build a stream through the hospital, pausing in a pool for washing, fed by a waterfall producing mist in the middle of the soon to be legendary dining hall. Yeah, think about that for a second.
Not content with tapping a single river source, but thinking about future expansion involving moats and water cannons, I tapped a second one. To maximize flow potential, the miners had to zig and zag to dig straight into it. Who cares if it's a lot of water, I can always block it off with the two flood gates that were just installed and successfully tested.
Unfortunately miners can get caught in a floodgate, drown to death, and prevent it from stopping the flow of water.
Opening the floodgate didn't let his body pass by. Channeling above his body, next to his body, and building stairs down next to the body didn't result in any dwarves retrieving the unfortunate victim. Perhaps a cave in would clog it?
It turns out a river source can produce more water than a single channel going through fortifications can get rid of. Many dwarves escaped up the stairs with their lives. The 2 resting in hospital beds were able to wake up and avoided being entombed in the water. Some of the more dimwitted dwarves drowned while trying to bring items up to stockpiles.
Well, actually it flooded the lower level very quickly. And then began bubbling up the stairway into the stone storage level. Despite a valliant effort, the dwarves were unable to build a bridge over the stairway, nor walls around it as the water level was rising too quickly.
The second stairway down to the stone storage will have to be abandoned...
The attempted sealing of the main storage level was also unsuccessful. Not only were 8 dwarves drowned in the disaster, but all the stone and metal workshops together with a year's worth of output was lost to the water. Luckily my raw gem storage was on the main level so I could at least trade for another anvil, and the 2 military dwarves were training up top, wearing all the valuable steel that I brought on embark.
The survivors reportedly enjoyed the mist and the waterfall before it got out of hand. It was decided that next time, redundant flood gates will be installed. For now, I wait until winter's freeze to install new flood gates so the fort can be pumped out. The fort lives on! It will take a lot more than a flood to break the fortress of "Basementadmire". I can't help but think they were mocking me with that name...