A U.S. Bureau of Reclamation crew has begun testing the strength of Shasta Dam’s concrete as part of preparation work to raise its height by more than 18 feet (5.5 meters).
The bureau plans to award a contract to raise the dam in December 2019 and work will start shortly after, he said.
The bureau has been studying the idea of raising the height of structure since the 1980s but has faced opposition from the state of California because it would further inundate the McCloud River, which is protected under state law.
LINK (via: US News and World Report)
