Getting Started: 1933-1938
MWAK builds a huge conveyor belt—the world’s largest—to remove all the rocks and rubble from the excavation site. It is more than a mile long!
Mason-Walsh-Atkinson-Kier (MWAK) is the name of the company that built the foundation for the dam.
Contact
Grand Coulee Visitor Center
(509) 633-9265
pninfo@usbr.gov
