Aquajet Chosen For Hydrodemolition Project

The Fort McHenry Tunnel is a unique structure that connects the harborside Locust Point and Canton areas of Baltimore. It stands out because it crosses under the Patapsco River just south of historic Fort McHenry. With large structures like the Fort McHenry Tunnel comes considerable ongoing maintenance.

A current project involves removing and replacing two 4-inch conduits buried in a mile-long wall in the ventilation plenum below the roadway. Hydrodemolition was specified for the project due to health and safety requirements in the tunnel beneath the river and Freyssinet, Inc. was awarded the project. Freyssinet Mid-Atlantic Operations Manager Wayne Campbell chose Aquajet for the project.

The Aquajet EcoClear water treatment system, which can process as much as 5,283 gallons per hour, recycles the water five times during the work shift. Campbell anticipated losing about 40% of the water to the atmosphere during the Hydrodemolition process; however, they’re retaining nearly all the water by using in a closed-loop system, in which they continually treat and recirculate the water. This provides not only considerable time savings, but also cost savings in both water and fuel consumption.

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