Case Study

Highway 290, South Carolina Roadway Project

Highway 290, South Carolina Roadway Project

Problem Highway 290 abuts an environmentally sensitive area known for its small ponds, gentle waterfalls, herds of deer and a piedmont stream. Piedmont streams typically meander across their flood plains and move with time often forming oxbows–u-shaped bends in the streams. Oxbows can eventually be cut off by excessive sedimentation, creating oxbow lakes or ponds. Contractors also had to create a bridge across this piedmont stream – a tri

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