Carlisle is an ancient city at the confluence of the rivers Eden, Caldew, and Petteril. Up to 80 per cent of the traditional wetlands upriver on the Eden and its tributaries have been lost since the 1950s. These areas, use to absorb heavy rainfall before slowly releasing it into rivers, they were drained to improve grazing.
The main electricity sub station which flooded, hindering the communications systems of the emergency services and caused the loss of power to over a 100,000 households for over 48 hrs, is built right next to the river. The surrounding flood plain has been developed into the Willowholm trading estate.
The city's police station, fire station and civic centre were all swamped by up to 8ft of water, well what a surprise. The main roundabout, 'Hardwick Circus' is actualy built on the site of the 'old priestbeck bridge' and the "Sands Centre' and it's car park are built upon the now filled in Priestbeck. Guess where the above buildings are located, YEP, in the old preistbeck flood plain.
Extensive building has taken place close to the Eden since 1968, when floods last struck the city, some of it on the flood plain itself. Floods at the weekend were more than 3ft higher than those 37 years ago, producing much more damage
In physics, the principle that the weight of the liquid displaced by an object is equal to the weight of the object. The principle is often stated in the form: 'an object totally or partially submerged in a fluid displaces a volume of fluid that weighs the same as the apparent loss in weight of the object.