After years of silence, the massive dam spillway finally opens, and what follows is nothing short of jaw-dropping. In this ...

These photos show the damaged Oroville Dam emergency spillway and main spillway on Saturday Feb. 18, 2017 as workers raced to make repairs before another major storm hits Northern California.

The emergency spillway exists to prevent water from topping the wall of the massive earthen dam that holds back Lake Oroville, a situation that could cause problematic erosion. Department of Water ...

More than a decade ago, federal and state officials and some of California’s largest water agencies rejected concerns that the massive earthen spillway at Oroville Dam — at risk of collapse ...

The 49-year-old reservoir has used its spillway in only 26 of those years, with its heaviest use coming during the 2016-17 winter, the wettest on record in Northern California. The reservoir ...

That flaw is the dam's emergency spillway, which empties onto a bare dirt hillside adjacent to the earthen-fill dam. If the emergency spillway had to be used to help quickly drain the reservoir ...

As officials scramble to repair a deteriorating emergency spillway at Oroville Dam in Northern California, documents show environmental groups pleaded with federal officials to reinforce the ...

placing a new ogee-shaped spillway and installing reinforced armor at the dam’s base. What was already a complex project was challenged further by a rockslide that undermined the sole access ...

TREMPEALEAU, Wis. -- The spillway of Lock and Dam 6, which is on the Minnesota side of the dam, will be closed to the public from Monday through September, 2004. The spillway is a low embankment ...

CAMDEN (WGME) -- A historic, 200-year-old dam is now the center of controversy in Camden. An upcoming vote to remove the dam is dividing neighbors there. "We would like to save Montgomery Dam," Lee ...

Spillway replacement and dam reconstruction on Mirror Lake began at the University of Connecticut over spring break with workers fencing the project site. The work is expected to last around a year ...