Due to a Consent Decree from the US Environmental Protection Agency (USEPA) and the Dept. of Justice (DOJ), the Sewerage and Water Board of New Orleans (S&WB) executed the comprehensive Sewer System Evaluation and Rehabilitation Program (SSERP), to evaluate and rehabilitate their sanitary sewerage system.
Trigon served as a subconsultant to the program manager. Trigon’s principals previously served in key technical and management roles on this large program for over 12 years, since its inception in 1996, including roles such as Program Manager, Deputy Program Manager, Planning Manager, Design Manager, Construction Manager, Project Manager and Project Engineer, with a previous employer. This included actively participating in consent decree negotiations (1997/98) as well as negotiations of a modified consent decree (2007/08) due to recovery efforts from Hurricane Katrina.
The S&WB’s program manager is responsible for all phases of the SSERP, including regulatory compliance, cost and schedule control, planning, design and construction management activities. The evaluation and planning phase of the SSERP included the development of a systemwide computerized hydraulic model, completion of short and long-term sewage flow monitoring programs, inspection and hydraulic evaluation of over 80 sewage pumping stations of various types and sizes, development of sewer rehabilitation guidelines and standards, the completion of numerous sanitary sewer evaluation studies throughout the city, development of capacity improvement measures and creation of an overall master plan and capital improvement program. Design consultants for specific studies and design projects were managed by the program manager. Construction management and resident inspection services were also provided.
More than 20 sewage pumping stations and over 20 miles of new force mains were being designed and constructed. Over $250M in sewer rehabilitation projects were also performed, including assessment and rehabilitation of sewers up to 84 inches in diameter.
Trigon recently completed inspections and hydraulic testing of 75 sewage pumping stations. The results are being used, in part, to update and re-calibrate an existing hydraulic model.
Related Projects
Drainage • Engineering & Design • Project / Program Management • Construction Management • Emergency Management
Saudi Arabia Trigon is building strategic partnerships in Saudi Arabia, providing expertise in water systems, urban infrastructure, and construction management for large-scale development programs.
Let’s collaborate on infrastructure that drives lasting impact across the Kingdom. Click below to see Trigon’s global impact and contact Greg Kolenovsky, Managing Partner and KSA Office General Manager.
Trigon’s Asia portfolio includes environmental remediation, water infrastructure, and capacity-building projects—most notably the Bien Hoa Airbase in Vietnam. There, we developed the Master Plan, built long-term storage for contaminated materials, designed site and infrastructure improvements, and delivered a War Remnants Museum. As Program Manager, we also provided engineering oversight, construction management, and environmental safeguards to address one of the region’s most complex contamination challenges.
Contact Greg Kolenovsky, PE, PMP, PgMP – Managing Partner, to learn how Trigon can support safe, sustainable development across Asia.
From Texas to Florida, Trigon has decades of experience advancing coastal protection, flood defense, hazard mitigation, disaster recovery, resilient architecture, and environmental solutions. Whether it’s expanding infrastructure for growing communities, fortifying them to withstand storms, or helping them come back stronger, our engineers and CFMs deliver practical, lasting results.
Reach out today to partner with the Trigon team. Greg Kolenovsky, PE, PMP, PgMP – Managing Partner, can show you how our expertise in coastal protection, hazard mitigation, disaster recovery, resilient architecture, and environmental solutions will enhance and complement your team. Together, we can strengthen Gulf Coast communities and build resilience that lasts. Use the contact button below to get started.
Jordan Our Jordan experience spans large-scale education, water, and municipal projects under USAID programs. From school rehabilitation to water resource management, we provide design oversight, QA/QC, and training to build sustainable local capacity.
Click “Learn More” to explore Trigon’s experience delivering results internationally, then connect with Sal Mansour – President to discuss how we can bring that same expertise to your next project.
D.C./Virginia Our team supports federal clients with water, environmental, and resiliency projects. With deep experience in compliance and stakeholder engagement, we deliver solutions that meet complex needs.
Discover more about our federal projects and see how Trigon’s expertise can strengthen your next initiative—contact Sal Mansour – President, to explore teaming opportunities.
Haiti/Caribbean In the Caribbean, Trigon provides design review, construction supervision, and disaster recovery expertise for vital infrastructure projects. Our team partners with governments and international agencies to build resilient ports, roadways, and community systems.
Click below to see our global project experience or contact Sal Mansour, President, to learn how Trigon can make your projects successful anywhere in the world.
Houston, TX Trigon supports Houston-area clients with critical infrastructure improvements, including wastewater, stormwater, and disaster recovery projects. Our services range from planning and design to construction management and compliance.
We’ve spent decades helping Gulf Coast communities rebuild stronger after storms—see how our experience can work for you through our Texas and Gulf South projects, or connect with Regina Cassanova, our Texas Regional Manager, using the buttons below.
New Orleans (HQ) Our New Orleans headquarters serves as the anchor for Trigon’s work, domestically and abroad.
From municipal infrastructure, disaster recovery, and community resilience to water and wastewater systems, hazard mitigation and capital improvements, our home office provides the technical leadership and support that powers our projects locally and around the world.
Ready to collaborate? Click below to explore our New Orleans project portfolio or connect directly with our CEO, Michelle Herbert, to start the conversation.
West Bank/Gaza Trigon has a proven track record of delivering USAID-funded water and wastewater infrastructure across the West Bank and Gaza, including reservoirs and packaged treatment plants. Every project is guided by our commitment to quality, safety, and building local capacity through training.
Connect with Souheil “Sal” Mansour – President, to explore how we can create infrastructure that transforms lives—together.
Our New Orleans headquarters serves as the anchor for Trigon’s work, domestically and abroad.
From water distribution, wastewater treatment, and disaster recovery to drainage, hazard mitigation, and program management, our home office provides the technical leadership and support that powers our projects locally and around the world.
Ready to collaborate? Click below to explore our New Orleans project portfolio or connect directly with our CEO, Michelle Herbert, to start the conversation.
