Historical Flood Events
Grangemouth has suffered from historical flooding events. The last major flood event within Grangemouth occurred in 1959, and resulted in substantial flooding in Grangemouth. Following this event, a Flood Relief Channel was constructed to alleviate flood risk to Grangemouth.
More recent flood events have occurred within the Grangemouth area, however, none of these reached the level of the 1959 event. In 2013/14 a near miss occurred when a storm surge was predicted to combine with the high tide, this resulted in water levels in the Grange Burn coming within centimetres of the bank tops and bridge structures.
On 3 January 2018, a predicted high tidal of 3.93m AOD caused the water level in the Grange Burn to rise significantly and come within centimetres of the bank tops and bridge structures.
It should be noted that none of the known historical flood events are comparable to the 1 in 200-year flood event, which is what the scheme is being designed to.