A small, inconspicuous stream which, however, can cause troubles and great damage. This is the Třebovka river, a tributary of the Tichá Orlice river in the Pardubice Region. The last, third stage of flood protection measures on this river, which will be built by the joint venture of OHL ŽS and Hochtief called Třebovka, was officially started on Thursday 18 July.
In the following years, a system of many different measures will be created in the villages of Třebovice, Rybník and Česká Třebová to prevent damage caused by a fifty-year flood. Therefore, it is planned to adjust the watercourse and to extend the river bed, to construct earthen dams as well as reinforced concrete walls which will be possible to be complemented by mobile dams. The construction will also include the relocation of underground utilities, the construction of new bridges and footbridges, the demolition of fixed weirs and other works. Overall, more than five kilometres of the river will be worked on.
The official opening with the foundation stone tapping was attended not only by the supply companies representatives and the Povodí Labe watercourse manager, but also by the Minister of Agriculture Miroslav Toman and the Governor of the Pardubice Region Martin Netolický. Together they agreed that focusing on the opposite function, namely the fight against the drought, is equally important as the creation of flood protection measures. For that reason, dry polders will also have a retention function if necessary.
The investor of the construction is Povodí Labe. The works are planned to be completed in 2021.
The Třebovka river valley was afflicted by devastating floods in 1997. Most of the area along the river is continuously built up, so the floods left multi-million damage. The Třebovka valley has been assessed as the highest flood-risk area in the upper and middle Labe river basin. Therefore, extensive flood protection measures have been being built in this area since 2000 (see the map – the blue parts are already finished, the red ones are just starting).