Montebello Water Filtration Plant

The Montebello Water Filtration Plant complex consists of two adjacent facilities that process a total of 240 million gallons of water per day. Carroll Engineering provided structural designs for a comprehensive, three-phased modernization to increase efficiency and improve environmental standards at the Montebello campus. Completed in 2020, the renovation focused largely on Plant 1, which was originally constructed in 1915. CEI provided full structural designs for renovations to the North and South Filter Bays, upgrades to four Sediment Basins, and new construction of an Alum Building, Alum Application Vault, and a Flocculator Drive enclosure.

CEI also provided full structural designs for multiple other contracts at the Montebello campus, including replacement of freight elevators at Plants 1 and 2, as well as replacement of wash water pumps at Plant 2. We have also provided designs for the adaptive reuse of a historic carriage house for a new laboratory facility.


• Structural designs included concrete repairs, new overflow structures, concrete equipment pads, and canopy installation.
• The third phase of the project included construction of a 700-SF Lime Tower with a deep foundation system.
• The project also included a feasibility study for the installation of solar panels at Plant 1.


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  • Architect:
    Whitman Requardt & Associates
  • Owner:
    Baltimore City Department of Public Works