This is a lengthy, but very informative piece in Forbes about the Columbia River’s power/enviro management by BPA (and others) of 31 dams. A lot of good information in here. I queried this given the heavy dump of wet snow here last night, up the Gorge and wondering about runoff/flooding the next few days. I learned a lot more on the behind the scenes management of water running downhill to the ocean.

Grand Coulee Dam, the Columbia River's largest dam.