Imposing Highway Challenges Solved with New Innovations

摘要

Environmentally sensitive wetlands, steep slopes and erosion-prone water channels were the challenges facing officials with the South Carolina Department of Transportation when they began building Highway 290, a new, four-lane highway near Spartanburg, South Carolina, in the early months of 2005. With strict NPDES Phase Ⅱ regulations mandating minimal sediment leaving construction sites, more traditional methods of erosion control, such as tacked straw, were deemed inappropriate to handle the 2H:1V slopes. In order to stay within the tight NPDES Phase Ⅱ tolerances, highway officials needed to find alternative solutions for the challenging project.