Millau Viaduct slightest movement in the Viaduct, and measure its resistance to wear-and-tear over time. Anemometers, accelerometers, inclinometers, temperature sensors are all used for the instrumentation network. Twelve fibre optic extensometers were installed in the base of pylon P2. Being the tallest of all, it is therefore under the most intense stress. These sensors detect movements on the order of a micrometre. Other extensometers, electrical this time, are distributed on top of P2 and P7. This apparatus is capable of taking up to 100 readings per second. In high winds, they continuously monitor the reactions of the Viaduct to extreme conditions. Accelerometers
Millau During the summer, the highest land of the municipality does not retain rain water and becomes arid. Some game in the area is protected and regulated by the hunting missions which gather quails, Hobby falcon, hawks, lizards, deer, wild boars, deer and mountain sheep. The expansion of the bed of the river Tarn in the city and the creation of a raw discharge linked to its expansion has slowed and lowered the level of the river that now sees the proliferation of aquatic buttercup which is reveling in the stagnant water. This has also led to a decline in wild