Savannah River Crossing Feasibility Study and Conceptual Engineering

CLIENT: Georgia Department of Transportation

Purpose of Project

The Savannah River Crossing Planning Feasibility Study & Conceptual Engineering led by the Georgia Department of Transportation (GDOT) includes a study to evaluate the pool of potential projects to replace the existing bridge. The need for the replacement of the current structure arises from the desire to increase the air draft such that Post-Panamax vessels larger than 14,000 twenty-foot equivalents (TEU) will be able to access the Port of Savannah. The Port of Savannah is the 3rd busiest container port in the United States and has seen consistent growth in recent years. Combined with the Savannah Harbor Expansion Project (SHEP), the Mason Mega Rail project, Hutchinson Island Terminal, and Jimmy Deloach Parkway expansion, there is a clear need to expand the entrance to the port.

The bridge replacement is important not only to the port, but to the economic success of many industries within Georgia and the surrounding region that rely on it for products. The study will guide GDOT, Georgia Ports Authority (GPA), and other stakeholders (public and private) in the identification and selection of an alternative to move forward to conceptual engineering, whether it be a tunnel, bridge, or ferry.

Our Role on the Project

As part of a team, Modern Mobility Partners (MMP) is or will be:

  • Performance-Based Alternative Evaluation Framework – Leading the development of the performance-based framework to evaluate, screen, and prioritize alternatives throughout the study. This includes development of performance measures and evaluation tools based on an international scan of similar projects. We will also be developing the alternative evaluation spreadsheet tool to score and rank alternatives into tiers, as well as assisting with the population of metrics for various alternatives; 

  • Data Sources & Analysis – Supporting the identification of different data sources to support the evaluation of alternatives;

  • Stakeholder Engagement – Supporting the identification of public and private stakeholders and engagement strategy;

  • Planning and Environmental Linkage (PEL) – Supporting the implementation of PEL throughout the study to streamline environmental processes once the selected alternative moves forward to the project development phase;

  • Alternative Identification – Supporting the development of different alternatives to address the Savannah River Crossing needs;

  • New and Emerging Technologies – Supporting the evaluation of new and emerging technologies that may supplement potential alternatives; and

  • Travel Demand Modeling - Leading all travel demand modeling using the Savannah metropolitan planning organization (MPO) model, as well as the GDOT’s Georgia Statewide Transportation Demand Model (GSTDM);

  • Benefit-Cost Analysis – Supporting the development of benefit-cost analysis methodologies to demonstrate the economic impacts and return on investment for different alternatives;

  • Traffic Engineering – Supporting traffic engineering analysis for different alternatives; and

  • Risk Management – Supporting early identification of potential risks and developing proactive mitigation strategies.

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