Due to the deterioration of aging 50+ year-old concrete structures, the City of Columbus undertook a major rehabilitation of the settling and flocculation basin complex at the Hap Cremean Water Plant (HCWP). Dynotec provided construction management services to oversee the work and ensure the project was delivered within critical operational and outage constraints.

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The project scope included extensive concrete rehabilitation on existing structures and basins, railing replacement, slide gate replacements (ranging from 49"x26" to 96"x96"), site lighting, and waterproofing. Concrete repairs ranged from crack injection and expansion joint replacement to shallow and full-depth structural repairs, restoring critical assets for long-term service.

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Overcoming Project Challenges: 

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• Construction Management: Plant production capacity was reduced to allow work to proceed, requiring Dynotec’s Senior Construction Manager to coordinate staffing, materials, and sequencing within strict outage timeframes. Midway through construction, the COVID-19 pandemic reduced on-site staffing, further complicating resource management. Dynotec coordinated closely with stakeholders to keep the project on track despite these constraints.

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• Outage Coordination: All plant outages were governed by strict outage requests. Dynotec led multiple stakeholder meetings prior to and during construction to ensure outage schedules were feasible, approved, and executed without impacting water supply.

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• Scheduling: Outages could not be extended without affecting the City’s overall water production. Since all City water plants were under construction simultaneously, schedule delays at HCWP would have threatened systemwide capacity. Dynotec monitored progress daily and worked closely with stakeholders to keep construction on schedule.

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• Communication: With most stakeholders working remotely during the pandemic, Dynotec adapted by leading multiple daily virtual meetings, documenting progress with photos, and providing presentations to resolve issues quickly and maintain alignment.

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The Result: Despite pandemic-related challenges and the critical nature of maintaining water production, the HCWP rehabilitation was completed on schedule in April 2021. The project restored structural integrity, modernized critical systems, and reinforced the long-term reliability of one of Columbus’s most important water treatment facilities.