To facilitate rehabilitation of the Bureau of Reclamation’s fish bypass facility in Tracy, California, NCI performed structural engineering design for support of temporary construction loads. The work consisted of a structural analysis of the existing facility and, where needed, design of crane bearing pads for safe transfer of anticipated temporary construction loads while the contractor (Harbor Offshore) replaced the intake ducts. Fabrication drawings and the finite element structural calculations were submitted to the Bureau of Reclamation for their approval prior to site mobilization.