Overflow Tunnels - Arizona Side
One part of Hoover Dam which communicates the size of the place are the overflow tunnels. These pictures were taken in May 1999 when Lake Mead was still at a relatively high water level.
The best place to get a look at the back or Lake Mead side of Hoover Dam from is from the Arizona side. There are a several places to park and each will give you a different vantage from which to photograph or just look at Hoover Dam. The overflow tunnels are located on the far right side of the image where Lake Mead edges against the mountains on the Nevada side. On the lower left side of the photo, the brown algae discolors the area where the water overflows. Note that these pictures were taken on April 3, 1999 - long before the current drought.
also able to see what the overflow system looks like when it is being
The size of theses
tunnels can be appreciated when we see them compared to other, familiar objects.
This picture tries to capture that.
The water from any
anticipated overflow is intended to flow through these huge tunnels from
Mead to the Colorado River almost 700 hundred feet below. The size of
these tunnels is almost frightening. The dimensions are very large, over
60 feet for the tunnel, and the tunnel itself has no daylight at the end
of it. One could imagine what a ride down that thing would be like.