The Boučí dry reservoir is being built in the town of Kojčice, in the Pelhřimov district, to safeguard the northern region of the town from the effects of floodwater caused by the concentration of surface water runoff from the basin located above the village. The function of the reservoir is to convert the floodwater into diverted streams that flow through a grassy channel into a ravine and eventually into the Hejlovka River near Prokop's Mill. Climate change is expected to cause more frequent and severe droughts in many regions, leading to increased water scarcity. Dry reservoirs can help mitigate the impacts of water scarcity by providing a source of water during dry periods. It can also help to reduce soil erosion by capturing and storing rainwater, allowing it to slowly infiltrate into the soil rather than causing erosion. Overall, the Boučí reservoir project presents a positive solution to a recurring problem in the region, but its success depends on careful planning and execution, regular maintenance, and responsible management of ecological impacts.
The total cost of the project was 7 910 088 CZK (333 119 EUR), from which 6 723 574 CZK (283 151 EUR) was paid by EU subsidy and 1 186 513 CZK (49 967 EUR) from public resources of the Czech Republic.
To support local climate adaptation actions, such as resilience to extreme weather events and flooding, and to support water retention, the construction of dry reservoirs can be supported. Such projects's success, however, is contingent on various factors, including the capacity of the reservoir, the effectiveness of the diversion system, and the level of maintenance required. The projects must also consider the ecological impact of diverting floodwater and the impact of construction activities on the surrounding environment. Nature based solutions should be prioritized over hard engineering solutions, whenever possible.