Jerry Castellini | Sierra Club

Jerry Castellini

The Innocuous River Hazard That Kills 40 People a Year

By Jerry Castellini March 8, 2020

Deadly hydraulic hazards can form behind low head dams and small pour-overs

In this story: survival tips

Illustrations show a raft of people on a river and a man overboard, then the man is pulled under, swims down, and is about to be pulled back into the raft.