Two proposed Northwest port facilities to export coal to China are facing hurdles. Millennium Bulk Logistics, a subsidiary of Australia’s Ambre Energy North America, with a partial stake owned by St. Louis-based Arch Coal Inc., wants to upgrade the Longview Terminal Facility on the Columbia River, roughly 45 miles downstream of Portland, Ore. But environmental groups, including the Washington Dept. of Ecology, have filed suit against the project, claiming Cowlitz County didn’t follow state law in awarding a shoreline permit. Millennium bought 416 acres of a former aluminum smelter in January. It wants to replace 150 creosote river pilings and
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.