Arch Bridges made by Croatian builder Kruno Tonković

From time to time an individual emerges who with his new and innovative solu-tions creates a great step forward. Kruno Tonkovic was certainly one of those individuals. With his original ideas and designs he significantly contributed to bridge engineering in Croatia. Dur-ing his career he designed many bridges that are still admired and studied. In this paper some of the most beautiful and advanced arch bridge structures designed by Kruno Tonkovic are shown. Some of his most important bridges include the Liberty bridge in Zagreb over the river Sava (100 m span) in 1953 and the Skradin arch bridge (110 m span) constructed in 1955 with concrete filled steel box arch girder just to mention a few of many remarkable bridges. In this paper it is shown that it was possible to build unique, beautiful, more functional and different bridges, which were superior in all aspects in his time and in some segments even today.