Map Viewing Service (WMS) of the dataset: Class C Dams — Haute-Garonne

Classification of all dams, whether hydroelectric or not, into 4 classes (Decree of 13 December 2007): A for dams of 20 m height or more above the natural terrain; B for dams not classified as A, exceeding 10 m and having a BMI value of 200 or more; C for dams not classified as A or B, exceeding 5 m and having a BMI value of 20 or more; D for other dams, not classified as A, B or C, of a height exceeding 2 m. All classified dams (A, B, C and D) must have: a flooding instruction; an auscultation and surveillance instruction (CSA); a suitable auscultation device. They shall be subject to: an annual report of the operator, including all relevant security facts; a biennial analysis of the testing measures; a systematic reporting of any significant hydraulic safety event (Eish). source Wikipedia.