Agg Piles
Location: Lower Basin. Just NNW of Big Boulder Island.
GPS Coordinates: 36° 2.526’N, 114° 46.541’W (approximate)
Elevation: Top of the piles are are 1005′. Bottom of piles & tunnel entrances are elevation 985′
Depth: Approximately 90 feet. See Lake Mead Water Elevation to compute depth based on current lake water elevation
Lake Mead Agg Piles – What an incredible dive site!
This is the Gravel Screening Plant used in the building of Hoover Dam. River rock was extracted from dry beds over on the Arizona side of the river, transported by rail to this area, sorted into 4 different piles based on size, washed with water that was de-silted in the “batch plant”, and then transported again by rail to the dam site where it was mixed with cement, and then poured.
These piles are huge – You just can’t get a feel for their size until you drop down on them. This area has been under water since 1936, but is now within recreational dive depth, yet has only been seen by a relatively small number of divers
