About
Sean M. Duffy, Sr.
President & CEO | Big River Coalition, LLC | Duffy Maritime Consultants, LLC
“Advocating for a Mightier & Safer Mississippi River”
Executive Profile
Sean M. Duffy, Sr. is a recognized maritime advocate, policy strategist, and waterway commerce expert with more than three decades of leadership on the Mississippi River and its tributaries…
About the Big River Coalition, LLC
The Big River Coalition, LLC is the preeminent advocacy organization for maritime commerce on the Mississippi River Ship Channel…
Key Achievements & Legislative Impact
Mississippi River Ship Channel Deepening to 50 Feet
The Big River Coalition served as the principal industry lead for the historic deepening of the Mississippi River Ship Channel to 50 feet…
Governor Landry’s Navigation & Safety Task Force
Partnered with the Task Force Chairman and Vice Chairman to develop a prioritized list of navigational improvements…
Coastal Zone Consistency & Wetlands Restoration
Led efforts to secure “Conditional” Coastal Zone Consistency for dredge material operations, beginning in 2009…
Post-2019 Flood Legislative Response
Following the Record Flood of 2019… recommendations included $200 million in increased USACE funding…
NOAA Physical Oceanographic Real-Time System (PORTS) Expansion
Led the BRC’s campaign to expand NOAA PORTS sensors on the Ship Channel…
National Transportation Safety Board – Sunshine Bridge Allision
Following the Sunshine Bridge allision, the BRC submitted written testimony to the NTSB and identified a calculation error…
Keynote and Featured Speaker
Sean has spoken before multiple federal and state agencies to represent challenges and solutions…
Associations, Boards & Appointed Positions
- NOAA Federal Advisory Committee – Hydrographic Services Review Panel: Past Chairman
- Congressman Steve Scalise’s Maritime Advisory Group
- Governor Jeff Landry’s Navigation and Safety Task Force
Awards, Recognitions & Professional Development
- 2026 – Propeller Club of the Port of New Orleans – Maritime Person of the Year
- 2025 – International Propeller Club – Lifetime Achievement Award
- 2024 – Louisiana Master Naturalist Certification