Author: Harry Poschinger

Casale Monferrato
10 Jul

Casale Monferrato

HYDROCONSTRUCT BUILDS EUROPE’S BIGGEST RUBBER DAM IN PIEMONT At Hydroconstruct in Upper Austria we’re used to breaking our own records, especially when it comes to the dimensions of our flexible rubber dam weir solutions. The advantage of this system over conventional weirs lies in the use of very broad watercourses to regulate dam height. All this is accomplished without the need to constrict the natural outflow by building massive installations. As early as 2012, Hydroconstruct completed what was then the longest rubber dam in Albania, with a length of 265m and a height of 2.3m. In 2017 we built India’s biggest rubber dam in Uttar Pradesh with a length of 270m and a height of 3.2m. Rubber dams made in Upper Austria can be supplied in heights up to 4.5m. This weir height has already been field tested in Turkey and France and has now been installed in Casale Monferrato as a four-section weir. Each section measures 50m (200m in total), with a regulated weir height of 4.3m. All this adds up to a European record in terms of the dam’s surface area and volume. This has been possible due to the special manufacturing process employing a system of endless vulcanisation. Recently we’ve equipped our dams with a permanent height regulator, enabling exact fine tuning and control, even for large reservoirs.
24 Nov

Silz

Tailrace Channel HPP Sellrain-Silz The rubber dam is located at the end of the tailrace channel at Sellrain-SILZ hydro plant, operated by Tirol Hydropower Ltd. The new flexible rubber dam, installed as a water-filled system with a height of 1.10m and a length of 10.50m replaces the existing fixed concrete sill. Its main function is the regulation of the surrounding ground water level in the summer months. In winter, the rubber dam is deflated.
24 Nov

Silz

Tailrace Channel HPP Sellrain-Silz The rubber dam is located at the end of the tailrace channel at Sellrain-SILZ hydro plant, operated by Tirol Hydropower Ltd. The new flexible rubber dam, installed as a water-filled system with a height of 1.10m and a length of 10.50m replaces the existing fixed concrete sill. Its main function is the regulation of the surrounding ground water level in the summer months. In winter, the rubber dam is deflated.
24 Nov

Asti

At the new hydropower plant in Asti, the rubber dam is used to regulate head water. At the site of an older weir installation, this project utilises the head of the Tanaro river in Asti. The rubber dam comprises two weir spans of different lengths. This enables the retention of some current on the left bank. The rubber dam has a width of 135m overall, and both weir spans are 2m high.
24 Nov

Asti

At the new hydropower plant in Asti, the rubber dam is used to regulate head water. At the site of an older weir installation, this project utilises the head of the Tanaro river in Asti. The rubber dam comprises two weir spans of different lengths. This enables the retention of some current on the left bank. The rubber dam has a width of 135m overall, and both weir spans are 2m high.