Meeting/Event Information

Joint SAME Session - 21st Century Safety Improvements for the World’s Longest Bridge

April 10, 2019
11:00 AM CDT to 1:00 PM CDT
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Jefferson-Orleans South
2536 Edenborn Ave
Metairie, LA 70002


The original span of the Lake Pontchartrain Causeway Bridge was built in 1956 with an annual traffic of less than 200,000 vehicles. The second span, with seven crossovers, was completed in 1969 with annual traffic increasing to 2 million vehicles. Today, traffic has increased six fold to 12 million vehicles annually. Continuous maintenance and inspections have made the Causeway one of the most structurally sound bridges in the world. However, with no shoulders, it is a 20th century bridge operating with 21st century conditions.



Carlton Dufrechou is a native of southeast Louisiana. He received both his BS degree in civil engineering and his MS degree in civil/environmental engineering from Tulane University. Immediately following school, Carlton had experience in civil and architectural design and real estate development. He has coordinated public projects and programs for over 30 years. December 1986 through early June 1992, Carlton was a planner and project manager with the New Orleans District of the Corps of Engineers. Carlton participated in the planning, implementation, and management of water resource, environmental restoration, and flood control projects in central and southern Louisiana. The projects include rural and urban flood control in central Louisiana, marsh creation and wetland restoration in the Mississippi River delta region, hurricane protection in the New Orleans metropolitan area, delta building in Atchafalaya Bay, and environmental enhancement projects in the Atchafalaya Basin.

In June 1992, Carlton became Executive Director of the Lake Pontchartrain Basin Foundation. As director, Carlton coordinated the overall planning and implementation of efforts to restore and preserve the ecology of the 10,000 square mile Pontchartrain Basin surrounding metro New Orleans. Pontchartrain’s restoration activities include water quality improvement, coastal restoration and storm protection, habitat preservation, and education/outreach projects. The projects ranged from an array of water quality improvement projects to creation of the 16,000 plus acre Big Branch National Wildlife Refuge to development of the Multiple Lines of Defense Strategy to preserve our coast. The projects have received numerous recognitions including The National Watershed Award, two EPA Environmental Excellence Awards, and a Presidential Environmental Education Award.

In August 2009, Carlton Dufrechou was selected as General Manager of the Greater New Orleans Expressway Commission (GNOEC). He is now responsible for overall operations of the “world’s longest bridge” including emergency response, traffic management, maintenance, administration, and future planning. With the help of staff, over the last few years, the GNOEC has reduced its annual operations budget to 2005 levels while implementing numerous projects to enhance commuter safety including pending upgrades to rails and addition of safety shoulders. The $100 million rail and safety shoulder projects are the most significant improvements to the Causeway in almost 50 years.

Carlton has and continues to participate on numerous regional, state and national committees, task forces, and boards dealing with environmental, transportation, and sustainability issues such as the Coastal Advisory Committee of the South Louisiana Flood Protection Authority-East, the Non Flood Assets Management Authority, the American Public Works Association’s Sustainability Task Force, and others. Carlton is a member of the American Institute of Certified Planners, American Planning Association, Society of American Military Engineers, and the Society of Tulane Engineers. He is a past Rotarian, a Paul Harris Fellow, and recipient of numerous awards including the Young Leadership Council of New Orleans Role Model Award, Gambit’s Best of New Orleans Award, Coastal Stewardship Award, and White House Champions of Change Award.


$30.00 Member

$35.00 Non-Member

$5.00 Student


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