LOGAN, Utah (AP) - Inside a cavernous northern Utah warehouse, hydraulic engineers send water rushing down a replica of a section of a dam built out of wood, concrete and steel - trying to ...

Michael Johnson with a replica of the Oroville Dam spillway. ... To help with the design, ... water streaming down the two flood-release spillways when they began to collapse was relatively small.

Mitch said the minimum Spillway Design Flood (SDF) threshold for drainage set by the state for a dam the size of the Kingman dam during a 100-year storm is 3,619 cubic feet per second.

Complacency, bureaucracy and an inadequate safety culture led to the failure last year of the Oroville Dam spillway, according to an independent investigation report released Friday.

SAN FRANCISCO (AP) - Small cracks have appeared in a new concrete spillway at Oroville Dam, a development state officials say was expected but an engineering expert says could lead to serious ...

Rehabilitation of the Lake Matoaka Dam will allow for the safe overtopping of the embankment during an event of Probable Maximum Precipitation, bringing the dam into compliance with State Dam Safety ...

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. In a ...

Small cracks that have appeared in the brand new concrete spillway at Oroville Dam were expected and do not pose a threat, California state officials said in previously undisclosed letters.

Spillway flow Friday began at 15,000 cubic feet per second, which Craddock called a “relatively small release.” The spillway is capable of releasing up to 270,000 cubic feet per second.

The U.S. Army Corps of Engineers has tentatively recommended a plan for making changes to the Garrison Dam spillway to reduce what it says are unacceptable safety risks.

GREENE COUNTY, Tenn. — A dam that saw heavy water flows and was pushed to its limit during historic flooding in upper East Tennessee will be inspected by the Tennessee Valley Authority on Oct. 16.