Hard rock and a 4-mile long bore could not keep the joint venture team of Renda Contracting, Southland Construction and SAK Construction from successfully completing a vital water pipeline in the suburban Washington, D.C., area.Last February, the Bi-County Water Tunnel began carrying 100 million gallons of water daily to Montgomery and Prince George’s counties in Maryland, enabling the Washington Suburban Sanitary Commission (WSSC) to guarantee adequate supplies and pressures to that area in the future.The pipeline travels 5.3 miles from a WSSC water main at the eastern end to a main on the western end, at depths of 90 to
