The Troja footbridge is situated in an important natural area in Prague and connects recreational routes of the city park Stromovka and Prague - Troja with its popular destinations (the ZOO, Botanical Garden, Troja Castle, etc.). The sudden collapse of the former footbridge caused a need to restore the connection by a safe controllable structure resistant to flood risks, but in addition meeting new requirement of possibility of crossing the vehicles of the rescue service and rather high occupancy of the path. The new footbridge is located in the same position and its profile is widened to 4 m compared to the original footbridge.
The main criteria for the design of the new footbridge were an effective, quickly feasible solution, the static and flood protection (design of foldable railings that minimize the flood barrier), also efficiency, maintainability and visual harmonization of all requirements.

The pros and cons of used materials were considered with regard to environmental impacts and subsequent maintenance. And also, use of materials friendly to visitors and suitable lighting with regard to the natural character of the surroundings were important points.
A simple steel structure with hierarchy of elements was chosen, consisting of an airtight tubular backbone resistant to loads in all directions with a wall thickness corresponding to the longitudinal distribution of bridge stress, supplemented by crossbars and tubular members used to attach the durable wooden deck and railings with a tilting mechanism and designed vertical luminaires.
This subtle construction, with its simple aesthetic concept, creates a smooth horizontal line supported by very slender piers of elliptical shape with water smoothly surrounded by water.