An infusion of $16 million from the American Recovery and Reinvestment Act will enable the rural California city of Live Oak’s wastewater treatment plant to avoid tens of thousands of dollars in fines and meet state wastewater quality standards by 2011. Live Oak, Calif. Photo: ECO:LOGIC Site prep begins under a construction contract that came in $1 million below earlier bids. Related Links: Stimulus: A Snapshot of Top Shovel-, Wrench- and Pencil-Ready Projects A 2007 California Water Resources Control Board order mandated upgrading the 1.4-million-gallon-per-day plant to meet standards for disinfection and metals, including aluminum and copper. “We were facing
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.