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Photo by Linda HeronPhoto Credit

Decommission Howson Dam on the North Maitland River

Looking downstream at Howson Dam on the North Maitland River.

 On 23 – 24 June of 2017, the upstream Gorrie Dam failed and the Howson Dam was at capacity during an extreme rain event and flood when 175 mm of rain fell in just 7 hours, placing more than 150 property owners at risk and resulting in an estimated $11-million in damages in the Town of Harriston. This severe rain event broke previous records by approximately 40% and was the second highest flow on the North Maitland in the 48 years of record. Fortunately, no one was killed; however, it could have been much worse, as in October of 2015, when a South Carolina flood breached 18 dams, and resulted in 16 deaths.

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Top of Dam – closed since 1999.

Concrete is failing and eroding away.

 


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