This project shall consist of the preparation of contract plans and related documents for the replacement of both structures. As part of the Preliminary Field Review Submission, the Consultant shall determine the most suitable means to maintain traffic. The professional services for bridge superstructure replacements shall include the design of construction plans, surveying, and traffic engineering services. A Design Study will not be a part of these services. The Department shall perform all related environmental surveys and documentation required to obtain environmental clearance. The Consultant shall reference DD-681 and develop a Traffic Management Plan. The Consultant shall reference DD-506 and use appropriate pollution prevention and discharge reduction methods in the design. Post Design Services, if required, will be by a separate Agreement.