Youdong Yeo, left, and Hyunjoong Kim stride toward cranes and pillars that will eventually become the new SK hynix microchip fabrication plant in West Lafayette. Spread over 133.5 acres off Kalberer and Yeager roads, SK hynix team lead Hyunjoong Kim said the size of the campus is equivalent to 100 American football fields. “It works as a noise barrier to sort of mitigate sounds coming from construction,” Kim said. Around the construction site, crews are required to adhere to a strict 10-mile-per-hour speed limit. Similar in size and looks to a common street-sweeping truck, water sprayers periodically drive throughout the construction site “streets” to dampen the gravel.