Ames constructed a new leach pad, diversion channels, and collection ponds that support mine-for-leach activities at an open-pit mining complex in the southwest United States.
Ames was initially contracted to build three channels to divert water away from the new leach pad, a PLS pond, and a non-stormwater collection pond. The project expanded to include construction of a 575-acre leach pad, which required clearing/grubbing, cut-to-fill, and the installation of clay underliner, HDPE liner, HDPE leach collection piping, and overliner.
Crews processed 1.8 million cubic yards of aggregate and placed 3.5 million cubic yards of aggregate. An additional 150 acres of land were cleared and graded to accommodate access roads, pump stations, ponds, conveyer corridors, power lines, and substations for the new leach pad. Ames also constructed an arch-plate tunnel over the main road, enabling the conveyor corridor to pass over traffic.
Markets: Mining, Leach Pads
Location: Southwestern U.S.
Completed: July 2020
Details:
- 5.2 million cubic yards of earthwork
- 1.8 million cubic yards of aggregate processing
- 3.5 million cubic yards of aggregate placement
- 1.2 million linear feet of 4" to 42" HDPE pipe
- 275,900 pounds reinforcing steel
- 28.6+ million square feet of liner
