1508Construction Stakes, Lines, and Grades

The Engineer will set construction stakes to establish lines, slopes, elevations, and continuous Profile Grades for grading, base, and pavement construction to establish the field control for the Project . The Engineer will also set construction stakes to establish location, line, and grade controls for drainage facilities, traffic control and protection devices, and other accessory Structures and appurtenances. For Bridge construction, the Engineer will set stakes to establish the field control and working points as shown on the Bridge layout sheet in the Plans. The Engineer will set at least one bench mark in the vicinity of each Substructure unit for the Contractor's reference when excavating these units . The Engineer will set grade points for the Substructure and Superstructure forms, and provide beam stool heights as deemed necessary for performance of the Work. From the field control, the Contractor shall establish other necessary controls, detail dimensions, and measurements required for proper layout and performance of the Work . The Contractor shall assume full responsibility for all measurements made from the stakes and marks established by the Engineer. The Contractor shall preserve all stakes and marks. If the Contractor carelessly or willfully destroys or disturbs any of the field control stakes or marks, the Engineer will deduct the Department’s cost for replacing the damaged stakes or marks from the payment for the Work. The Department is responsible for the accuracy of lines, slopes, grades, and other engineering Work performed by the Department’s personnel as specified in this section. The Contractor shall not knowingly take advantage of errors or omissions and shall report any discovered errors or omissions to the Engineer immediately upon discovery.