The water to fill the expanded reservoir capacity would be moved from the headwaters of the Colorado River on the opposite ...

Dam 101 near completion in Round Rock, promising significant flood relief and potentially lower insurance rates.

The tunnel is usually off-limits when it is filled ... government was starting to build along the Colorado — Hoover Dam (originally called Boulder Dam) and Parker Dam, which formed the reservoir ...

The 38-kilometre tunnel was closed in October last year to allow for essential maintenance both inside and outside the ...