After decades of planning and years of construction, Northern Colorado's Chimney Hollow Dam is nearly complete.

A gaping hole in the spillway for the tallest dam in the United States has grown and authorities said they expect it will continue eroding as water washes over it but the Oroville Dam and the ...

Just weeks before completion of construction, Northern Water has confirmed uranium has been discovered at the site of the Chimney Hollow Reservoir and Dam.

Oroville Dam, the nation’s tallest dam in Butte County, shows burn scars from the Thompson Fire on Wednesday, July 3, 2024.