The Consultant shall assist and support Caltrans and perform consultation, research, professional, technical and field services required for Structure Construction Inspection and Construction Contract Administration Services, including, but not limited to, performing construction engineering and inspection, general contract administration, preparing and administering contract change orders, providing engineering support to resolve construction potential claims, providing support on contract acceptance, preparing final construction estimate and preparing final report, on an “as-needed” basis to support the Department of Transportation (“Caltrans, or Department”), Division of Engineering Services, Structure Construction , District 59, on project development phase 3 (Structure Construction Engineering and Inspection Services Support) for the construction of proposed Caltrans transportation facility projects in Districts 6 and portions of District 10 (South). The Caltrans Contract Manager (as defined in Section A.2 below) may assign specific work to the Consultant to assist the Caltrans workforce through the issuance of Task Orders (as defined in Section A.2 below) describing in detail the services to be performed. The Consultant shall only perform work that is assigned in an authorized Task Order. This On-Call Contract (“Contract”) does not guarantee that a Task Order shall be issued.