DESIGN-BUILD REPLACEMENT OF FIVE WATER TREATMENT PLANT UNDERDRAIN FILTER SYSTEMS INCLUDING DESIGN, FIELD VERIFICATION, FILTER MEDIA REMOVAL AND STORAGE, DEMOLITION, FLOOR PREPARATION, UNDERDRAIN INSTALLATION, AIR-SUPPLY CONNECTIONS.
Johnston Construction Company
- Johnston Construction Company performed design-build construction services for the replacement of five underdrain filter systems at the Fort Detrick Water Treatment Plant in Frederick, Maryland.
- The project addressed Filter Cells 1A, 1B, 2, 3, and 4 within Building 1125, supporting the continued treatment and delivery of potable water at the active military installation.
- JCC’s scope included development of the design required for replacement of the existing underdrain systems, field verification of dimensions and conditions, construction planning, demolition, installation, testing, and closeout.
- The work included removal of the existing underdrain systems while carefully removing and storing the existing filter media for reuse during installation of the new systems.
- JCC removed existing air-supply connections in a controlled manner to protect the existing air-distribution infrastructure and facilitate reconnection to the replacement underdrains.
Concrete Services Division
- Concrete Services Division, LLC performed concrete, demolition, underdrain, and filter-media work for the replacement of five underdrain filter systems at the Fort Detrick Water Treatment Plant in Frederick, Maryland.
- The project involved Filter Cells 1A, 1B, 2, 3, and 4 within Building 1125 and supported the continued operation of an active potable-water treatment facility.
- CSD’s scope included concrete work, concrete demolition, concrete sawcutting, handling and disposal, Leopold underdrain-bottom work, filter-media installation, and filter-media removal through an eduction process.
- The work included demolition, removal, and reinstallation of the existing filter underdrain systems in accordance with the approved project drawings, specifications, and manufacturer requirements.
- CSD removed the existing filter media and supported its protected handling and storage so that the media could be reinstalled following completion of the underdrain work.
Additional project details
- The design-build package replaced the underdrain systems in Filter Cells 1A, 1B, 2, 3, and 4 at Fort Detrick’s active water treatment plant.
- The replacement addressed deteriorated underdrains while preserving potable-water production at the installation.