The rebuilding of Taum Sauk Upper Reservoir is a project of many superlatives. The upper bowl of the 440-MW pumped-storage system sits on top of Missouri’s highest peak, 1,590-ft Proffit Mountain. It is believed to be North America’s largest roller-compacted concrete dam. When the original earth-and-rockfill dike was over- topped and failed in December 2005, Missouri Gov. Matt Blunt (R) called the damage done by the 4,365 acre-ft of water it released “the worst man-made disaster in the history of Missouri.” And the $10-million civil penalty imposed on St. Louis-based utility AmerenUE by the Federal Energy Regulatory Commission for the
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.