Pittsburgh’s Water Intake Back to Normal After Freezing Temperatures Cause River Blockage
The recent frigid temperatures in Pittsburgh have caused the Allegheny River to freeze over, disrupting the city’s water intake. However, officials have managed to restore normal operations after clearing the ice blockage.
The winter weather has been creating challenges for residents in the Northeast, with the ice formation in the river posing a significant obstacle for Pittsburgh Water. The blockage limited the treatment plant’s capacity and affected pumping operations, especially in higher elevation neighborhoods.
Water treatment plants like the one in Pittsburgh play a crucial role in ensuring that drinking water is safe by removing harmful germs and chemicals from natural water sources.
In a statement, Pittsburgh Water explained, “Cold temperatures led to ice obstructing our water intake along the Allegheny River, reducing the volume of treated water produced at our water treatment plant.”
While ice blockages are common during this time of year in the Allegheny River, officials usually shut off pumping temporarily to allow the ice to flow through. However, this recent blockage required more intervention to clear the obstruction.

Following approximately 45 minutes of initial treatment, emergency responders successfully managed to remove some of the ice formation at the water intake. A barge and tugboat were deployed to assist in breaking up the remaining ice and debris.
Pittsburgh Water commented, “Pittsburgh Water is using several different tactics to mitigate this situation, including manually breaking the ice from above, hosing to keep ice away from the intake, and mechanical efforts from a barge to break up ice and debris.”
With the help of the barge and tugboat, the ice and debris obstructing the water intake were cleared, restoring pumping capacity to normal levels. Pittsburgh Water will continue to monitor the situation closely as cold weather persists in the region.

