Trigon provided engineering, design and construction phase services for the Sewerage and Water Board of New Orleans’ citywide Water Line Replacement Program. The purpose of this program is to replace water lines on the East Bank of the City damaged as a result of floodwaters from Hurricane Katrina. Eligible water lines for replacement are determined based upon a FEMA and S&WB-developed pipe evaluation criteria. The resulting water line replacements were coordinated with the City of New Orleans Department of Public Works’ Recovery Roads Program; the Department of Transportation’s Submerged Roads/Paths to Progress Program; ongoing S&WB projects for water point repairs, sewer repairs and replacement; and other relevant stakeholders’ projects.
Trigon was the prime consultant for five (5) different neighborhood waterline replacements – Lakeview (Groups 1 & 2), Lakewood, Navarre and West End. Approximately $10M to $12M of water line construction was designed within these five (5) neighborhoods.
Trigon also served as a major subconsultant for six (6) other neighborhood waterline replacements – Read Blvd. East, Read Blvd. West, Village de Lest, Bayou St. John, Fairgrounds and St. Bernard. Approximately $4M to $6M of water line construction was designed within these six (6) neighborhoods.
Design of water line replacements generally included:
• Preparation of preliminary plans (30%)
• Final design plans and specifications (90%)
• Construction contract documents for bidding
• Opinion of probable construction cost
• Obtain necessary permits/approvals
• Bid phase services
In some cases, design also included street repair and restoration efforts, and replacement of drainage and sewer systems in accordance with City, Federal DOT, and S&WB standards.
During construction of the improvements, Trigon provided engineering and construction inspection services which included:
• Water line installation and disinfection, water line breaks associated with paving, etc.
• Respond to requests for information
• Review of submittals and shop drawings
• Verify quantities in all invoices
• Public notification
• Coordination with S&WB valve crews
• Maintenance of traffic
Trigon also acted as a representative of the S&WB on City projects located within the assigned neighborhoods.
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Braithwaite Wastewater Treatment Plant Replacement and Lift Station Improvements
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.
