Differing site conditions

During construction, Lomma Construction Corporation determined that the subsurface conditions were different than expected from the plans and specifications in the bid documents. Lomma requested that e4sciences|Earthworks review the borings obtained for the bid documents and with the borings obtained during construction. We found that the two original preconstruction borings, drilled on either end of the contract area, missed a layer of boulders and debris that had severe implications for the construction. The evaluation was used to justify a doubling in the contract value.