City Of Frederick Wastewater Treatment Plant – Floor Drain Replacement

Key Accomplishments

• Removed approximately 3-foot-by-5-foot sections of 6-inch-thick concrete flooring around each existing drain to provide access to the underlying drainage infrastructure.
• JCC's work included hand excavation and removal of two existing floor drains, associated traps, and approximately 5 linear feet of existing drain piping.
• Furnished and installed two replacement floor drains and associated drainage piping within the Digester Solids Handling Building.
• Completed backfilling and compaction of excavated areas, followed by restoration of approximately 3-foot-by-5-foot sections of 6-inch-thick concrete flooring around each replacement drain.
• Johnston Construction Company served as Prime Contractor for the Floor Drain Replacement Project at the City of Frederick Wastewater Treatment Plant in Frederick, Maryland. The project involved replacing two existing floor drains within the facility's Digester Solids Handling Building. The construction assignment included concrete demolition, excavation, removal of existing drainage components, installation of new floor drains and piping, and restoration of the surrounding concrete flooring.
• A significant portion of the construction involved saw cutting and demolishing sections of the existing concrete floor to expose the underground drainage components. The specified work included approximately 32 linear feet of concrete saw cutting and removal of two sections of flooring measuring approximately 3 feet by 5 feet, each consisting of 6-inch-thick concrete. These activities provided access to the existing floor drains, traps, and associated piping beneath the building floor.
• Following the concrete removal, Johnston Construction Company's scope included hand excavation to expose and remove the existing drainage components. The work involved removing two floor drains, their associated traps, and approximately 5 linear feet of drain piping. The project documents anticipated that the existing floor drains were located approximately 3 feet below the finished floor surface, requiring excavation to accommodate the replacement drainage installations.
• The project included furnishing and installing two new floor drains and associated piping as directed by the City of Frederick's representative. Following installation, the excavated areas were to be backfilled and compacted to provide a suitable foundation for restoring the concrete floor. The specified restoration involved replacing approximately 3-foot-by-5-foot sections of concrete flooring, 6 inches thick, around each of the two floor drains.
• Johnston Construction Company coordinated the project under the direction of Project Manager Jimmy Moffitt, working with the City of Frederick's representative, Stona Cosner. The assignment required localized demolition, underground drainage replacement, and concrete restoration within an existing wastewater treatment facility. The project demonstrated JCC's capabilities in wastewater infrastructure maintenance, drainage system replacement, and concrete restoration work.