A facility in Charlotte identified a critical structural concern involving the steel framework supporting its ammonia condensers. Years of exposure had resulted in severe corrosion and section loss, leaving portions of the structure at or near structural failure. While full replacement of the condenser system remained a long-term objective, the immediate priority was to identify a safe, cost-effective solution that would extend the life of the existing equipment and maintain uninterrupted plant operations.
Chief Engineering was engaged to develop a fully engineered rehabilitation strategy that would allow the existing condensers to remain in service while restoring the structural integrity of the supporting framework. Rather than replacing the entire system, the project focused on providing a practical life-extension solution that balanced safety, constructability, and capital planning.
The engineering effort built upon a previous structural assessment completed by another engineering firm. That study identified deteriorated members requiring replacement, while Chief Engineering’s role was to transform those findings into a phased, construction-ready rehabilitation plan. The project included structural analysis, scan-based modeling, temporary shoring design, repair sequencing, replacement steel detailing, and foundation design where required. The final deliverables provided a coordinated bid-ready package that contractors could use for planning and execution while allowing the client to compare the rehabilitation approach against full replacement alternatives.
One of the most important aspects of the project was developing a temporary works strategy that enabled repairs to be completed safely while the existing ammonia condensers remained in place. This required careful sequencing and engineering to maintain structural stability throughout construction without disrupting facility operations.
Beyond delivering a practical engineering solution, the project also created opportunities for professional growth within Chief Engineering. Several team members worked on this type of structural rehabilitation project for the first time, expanding internal expertise and strengthening the firm’s capabilities for future life-extension and rehabilitation projects. The project also reinforced the value of long-standing client relationships built on trust, communication, and consistently delivering practical engineering solutions.
By providing a clear engineering roadmap from assessment to construction, the project equipped the client with the information needed to make informed capital planning decisions while extending the safe operating life of critical infrastructure. Rather than simply replacing aging assets, the project demonstrated how thoughtful structural engineering can maximize existing investments, reduce risk, and provide flexible options for future facility improvements.
