The installation called the "Save the Sauce", a sculpture in the form of a pre-dimensioned glass inside which, thanks to the double walls, is located the water from the Sava River, set today at Zrinskog Square in Nikola Šubića Square.
An inescapable work that leads to Sava into the center of the metropolis is set within the Sava Program, a project aimed at the protection, arrangement and use of the Sava River and the coast from the border with the Republic of Slovenia to the city of Sisak. The author of the installation is the renowned artist and scenographer Ivica Propadalo, along with the installation by Tedi Lušetić, Deputy Head of the City Office for Education, Culture and Sport of the City of Zagreb, and Dubravko Ponoš, Director of the Sava Program.
"The aim of our installation is to revive and stimulate the positive emotions of Zagreb's citizens towards the Sava River, but at the same time to realize the need for a comprehensive, complex solution that primarily addresses the great problem of falling groundwater levels in the wider Zagreb area and the need for adequate flood protection. The Sava Program is a project that meets all the key issues of space along the river from the Croatian-Slovenian border to the city of Sisak, from the water management issue through flood protection and environmental protection to the exploitation of energy, transport and tourism potential, "said Dubravko Ponoš, Sava doo, which is part of the HEP Group in charge of implementing the project according to the mandate of the Government of the Republic of Croatia.
The Sava Program is aimed at stabilizing groundwater levels, raising the level of flood protection from the border with Slovenia to the city of Sisak, creating potential for the development of the waterway, utilizing the river's energy potential and removing the flood risk line from the center of Zagreb.
The current flood protection system has been more than half a century old and has been developed in response to the catastrophic flood of 1964. covered one third of Zagreb. The fear of the river and its devastating power then replaced the current coexistence with the river and completely overshadowed its positive and unparalleled role in the everyday life of Zagreb. The mentioned flood defense system has never been completed, ie it is stopped at 40 percent of the projected volume.
On the other hand, the Sava share in Slovenia is completely regulated by the construction of four hydropower plants, but in this case the problems in Croatia are inevitably solved by solving the problems here. Namely, the result of Slovenian hydropower plant construction is partly a decrease in groundwater levels in Croatia, and the fact that ground water levels on which Zagreb's water supply rests has decreased in the last 40 years by as much as four meters, causing disruption of ecosystems that depend on to them. The Sava program envisages preventing erosion processes and stabilizing groundwater levels through the construction of seven hydroelectric power plants, of which four would be located within the city as small power plants under the 10 Mw in positions at Jarun, Šanci, Petruševac and Ivanje Reke.
Apart from the fact that such hydro power plants built on the water staircases could produce even 23 instead of Zagreb's electricity demand from renewable sources, each facility would carry the potential of using thresholds such as bridges for pedestrian, cycling or motorized traffic. Additionally, due to production at the place of consumption, the losses in energy transfer would be minimal.
Apart from the construction of hydropower facilities, the Sava Program envisions the reconstruction of the existing Sava-Odra canal and the construction of a new Sava-Sava canal, which would shift the risk and flood control line from the embankment into the city to the new channel. He would also have plunged into the category of cargo ships, and the potential traffic through the project would have been realized through the newly created waterway for tourist vessels to the Slovenian border. The liberated space along with the existing townships in the city would become available for various tourist and recreational facilities that would be defined outside of this project through the future joint decisions of the City of Zagreb, architects and citizens.
The growing need for Zagreb and the surrounding areas for the stabilization of groundwater levels and the creation of a long-term flood defense solution are not the only reason for the necessity of such a comprehensive project. There are also obligations that the Republic of Croatia has undertaken by joining the European Union, such as compliance with the provisions of the Water Framework Directive (2000 / 60 / EC), according to which any significant reduction of groundwater levels should be prevented in order to achieve a good quantity of groundwater water. This is also indicated by the Water Management Strategy, the Watchtower Document of the Republic of Croatia for Water Management, according to which water resources are a paramount issue of national sovereignty and interest and it is unavoidable that the reduction of groundwater levels should be prevented.
The Sava Program is implemented with the support of institutional stakeholders - the Ministry of the Economy, the Ministry of Regional Development and Funds of the European Union, the Ministry of Foreign Affairs and European Affairs, the Ministry of Construction and Physical Planning, the Ministry of Environmental Protection and Nature, the Ministry of Maritime Affairs, Transport and Infrastructure. Energy Sector and Investment Activity, City of Zagreb, Zagreb County, Sisak-Moslavina County, Croatian Water and HEP Group. High officials, stakeholder representatives, have gathered in the Council of Programs whose mission is to make strategic decisions in developing the Program. As an operational support to the development of the Program, an Operational Group was established in which Senior Civil Servants of the Stakeholder Institutions are responsible for daily communication and support to the Sava Program Ltd. The Supervisory Body of the Professional Counseling Program which is currently gathering 23 Experts with the Project Advisory Team Leadership Program and Development Work Program and scientific evaluations of all solutions and documentation, to ensure maximum transparency and minimal error development potential.
Sustainability of the project was also confirmed by testing the sustainability level implemented using the Hydropower Sustainability Assesment Protocol (HSAP) methodology. The Sava Program is the first project in the world for which the testing was conducted at the early stage of the program development, and so far, projects in Germany, Australia, China, Canada and other countries have been evaluated according to this protocol.
The assessment was fully funded from the EU Hydro4LIFE project and was carried out in nine different categories - proven needs, analysis of options, policies and plans, political risks, institutional capacity, technical risks, social risks, environmental risks, economic and financial risks the project fully met the sustainability criteria.
The cost of implementing the Sava Program is estimated at EUR 1,4 billion, and considering the environmental, social and economic benefits of the Program, the funding can be implemented through EU funds.
It is also important to note that the Sava Program is on the Juncker Schedule for Financing, and the European Union has recognized the development potential of the project even at the design stage, and the Western Balkans Investment Framework fund has approved the highest amount of technical assistance in the amount of 1,5 million.
Experts estimate how the first project within the program can start in less than two years, while the entire project can be realized within ten to twelve years.