What's Happening with the Removal of the BOM buildings and the land restoration at Coldwater?
Bureau of mines buildings are being removed. The area around Coldwater
Spring is being returned to it's previous state of the spring
outlet will fill the reservoir, and the side seeps will have it's own
outlet and wetland.
Below is the plan for the water;
First here is an ariel view of the area and it shows the old railroad embankment that is to be removed;
The Rail Road embankment created a dam that backed up water around building 4.
there was a drain tile system that dewatered the area and dumped
it out through the culvert.
However as the drain tile system has fallen into disrepair, the overflowing water has started to collapse the reservoir walls.
National Park Service received approval from the Minnehaha Creek
Watershed District to allow the water previously around building 4 to
follow the natural slope to the south and rejoin Coldwater Creek.
This is consistent with the reservoir being only spring water directly
from the rock, and not seep water that runs across the ground to keep
the drinking water supply cleaner.