Susquehanna Water Treatment Plant – Intake Traveling Water Screen Repair

Key Accomplishments

• Replaced the operating chains on both intake traveling water screens using replacement chain components supplied by the City of Lancaster.
• Furnished and installed 280 new ¾-inch Grade 5 bolts as part of the mechanical repair and reassembly of the traveling screen equipment.
• Provided chain falls and associated equipment-handling arrangements necessary to facilitate removal and reinstallation of the existing screening assemblies.
• Coordinated a phased repair sequence that allowed for approximately one week of operational testing of the first repaired screen before the second screen was scheduled to be removed from service.
• Worked closely with City of Lancaster personnel to coordinate equipment access, screen cleaning, removal of interfering instrumentation and piping, and handling of Owner-supplied replacement materials.
• Completed specialized mechanical repairs to existing water intake screening equipment, supporting the continued operation and maintenance of the municipal water treatment facility.
• The project also required furnishing and installing 280 new ¾-inch Grade 5 bolts as part of the mechanical repair and reassembly activities. These fasteners were included in Johnston Construction Company's contracted scope and provided the required mechanical connections associated with the screen repairs. The installation required coordination with the replacement chain assemblies and existing screening equipment to accommodate the mechanical connections and reassembly requirements.
• The Project Was Completed On November 4, 2013.