Owyhee Reservoir’s unusual spillway system is slated for improvement, partly because this year’s lower inflows made it more accessible.

Owyhee Reservoir’s unusual spillway system is slated for improvement, partly because this year’s lower inflows made it more accessible.

Concrete work on the Owyhee Reservoir’s spillway-regulating ring gate, or “glory hole,” is expected to enter its second phase in late 2021.

Here's everything you need to know about the dam and why it will be devastating to the state if the spillway fails. What is the Oroville Dam?

Mike Canterbury, the dam tender at Vallecito Reservoir in Colorado, was going to release water from the reservoir down the spillway when he saw two young mountain lions trapped by the spillway’s ...

OROVILLE, Calif. --Water could pour over an emergency spillway at Lake Oroville for the first time ever, a last-ditch alternative that California officials said they had been hoping to avoid. The ...

Saying the reservoir has receded enough to handle inflows from approaching storms, operators at troubled Oroville Dam said Friday they would continue to dial back releases from its cracked main ...

In the far reaches of eastern Oregon, the Owyhee Reservoir is a boating and fishing paradise.

Nearly 200,000 people who were ordered to leave their homes out of fear that the Oroville Dam spillway could collapse may not be able to return home until the barrier is fixed, officials said.

MALHEUR COUNTY, Ore. — A flood warning was issued for the Owyhee River at the Owyhee Dam by the National Weather Service (NWS) after reaching the 'moderate' flood stage (between 6,000 cfs and ...

The road above Hyrum Dam will be closing for three to four years, starting this summer, so construction can be completed on a new spillway.

California Department of Water Resources (DWR) will be cleaning and performing routine annual inspections of the concrete spillway chute at the Oroville Dam the week of Monday, Sept. 23.