Before: Glines Canyon Dam Site on 26 January 2014
After: Glines Canyon Dam Site on 27 January 2014
The blast also lowered the river at the dam site, increasing the gradient of the river, and thereby increasing its erosive capacity. As a result there was an almost immediate uptick in turbidity downstream:
turbidity at the MacDonald Bridge gage on the Elwha River, 26-28 January 2014
Typically turbidity is closely linked to river flow, but in this case there was no increase in river flow - this turbidity was generated by the dam blast.
River discharge, MacDonald Bridge, 26-18 January 2014