This project installed 10 miles of 54” diameter water delivery pipe through developed areas connecting the desalination plant on the coast, to the water authority inland. J.S. Held was involved in the analysis of the contractor's claim for a collapsed secant pile directional drilling access shaft (17’ diameter and 80’ depth). It was determined that the collapse was due to a defect in secant pile construction. Our civil and infrastructure experts provided a schedule delay analysis, as well as claim and invoice review. We also developed an estimate of rectification costs - the cost to repair the defective construction if repairs had been performed just prior to the collapse.