CheckMate® In-Line Check Valve Safeguards Homes and Schools from Flooding

The Ballygawley River, in Northern Ireland, has been the source of serious flooding during periods of heavy rainfall, with major events occurring mulltiple times in recent years. These floods significantly impacted properties along the river, including homes, businesses and educational facilities.

To address this recurring threat, a major flood alleviation project was commissioned to reduce the risk of future flooding at three critical locations. The project protects key community assets, including a high school, nursery school, church hall, commercial auto garage, and several nearby residences. Climate change scenarios were carefully considered throughout the design process, ensuring the long-term resilience of the solution.

A pivotal component of the flood alleviation system is the installation of a 900mm CheckMate^® In-Line Check Valve, manufactured by the Red Valve n Pittsburgh, PA, USA. This valve was chosen for its sustainable, energy-free design, which offers a clear
advantage over traditional pumped systems. The CheckMate^® Valve operates without electricity or backup power, making it a low-maintenance and cost-effective option. It functions reliably even in challenging conditions involving mud, silt and debris, thanks to its passive design and ability to perform effectively after long periods of inactivity.

In addition to the valve installation, the flood defense works included the construction of nearly 700 yards of sheet-piled flood wall with reinforced concrete, over 500 yards of additional concrete walling and landscaped earth banks, back drainage systems to support all flood defenses and the integration of fishery habitat enhancement units to support local biodiversity.

Completed on time and within budget, the project now stands as a model for sustainable flood protection and continues to deliver long-term value to the Ballygawley community.

Click here to see the CheckMate^® In-Line Check Valve in action.

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