Specifications include, but are not limited to: The scope of work to be undertaken by the Proposer under the design-build contract for this Project will be further defined in the Request for Proposals (RFP). The successful Proposer will be responsible for all engineering, design, and construction services. The Project will be designed in accordance with AASHTO and SCDOT design specifications and criteria and constructed in accordance with SCDOT standards and specifications. The design work will include, but not be limited to: • Surveys; • Geotechnical exploration and design; • Hydrology and hydraulic design studies for roadway and bridge to include NPDES and FEMA, as required; • Roadway design; • Bridge design; • Roadside safety; • Traffic design; • Utility design; • Lighting design; • Seismic design; • Public/Media/Community Relations and Information; • Utility coordination • Noise Barrier design; • Railroad Coordination; • Transportation Management Plan; • As-Built Plans; • HAZMAT Studies & Compliance; • Permit modification(s), submittal(s), and approvals including identifying needed mitigation as required; Construction will consist of all necessary roadway and/or bridge work including, but not limited to: • Reconstruction of interstate riverine and railroad bridges, including removal and disposal of the associated bridges; • Widening/realigning interstate with asphalt pavement; • Constructing retaining walls, noise barrier walls and culverts and other roadway structures; • Constructing and rehabilitating drainage systems along with necessary sediment and erosion control measures; • Constructing highway signing and lighting; • Removal and disposal of lead-based paint, asbestos, and other hazardous materials where necessary; • Constructing sanitary sewer systems; • Constructing telecommunication conduits and fiber optic connections; • Replacement of liquified petroleum gas crossline under I-20; • Constructing other necessary elements consistent with projects of similar magnitude