Riverbanks Collapse after Oroville Dam Spillway Shut Off

When state water officials scaled back their mass dumping of water from the damaged Oroville Dam this week, they knew the riverbed below would dry up enough to allow the removal of vast piles of debris from the fractured main spillway. But they apparently did not...

President Trump Attacks Clean Water

Today, President Trump signed an executive order directing the Environmental Protection Agency and the Army Corps of Engineers to begin repealing the Clean Water Rule, a landmark measure many years in the making. Likewise, new EPA Administrator Scott Pruitt recently...

This Year’s Floods May Be Good for California’s Salmon

In the mid-1990s, a scientist named Ted Sommer commuted routinely by bicycle between Davis and Sacramento, on the causeway that passes over the vast floodplain called the Yolo Bypass. At the time, state biologists had observed that numbers of Sacramento River fish...

America’s Aging Dams Are in Need of Repair

After two weeks that saw evacuations near Oroville, Calif., and flooding in Elko County, Nev., America’s dams are showing their age. Nearly 2,000 state-regulated high-hazard dams in the United States were listed as being in need of repair in 2015, according to the...