Berlin, Germany is a vibrant metropolitan with the beautiful and equally important River Spree cutting through it. The need to build new iconic and contemporary pedestrian bridges is more important than ever. These bridges are symbols for fast growing 21st century cities for instance, Calgary, Venice, Dublin, Tianjin. Berlin is no exception! The concept for this bridge was to create a new contemporary bridge that acts as an interpretation, not a replacement, of the lost Brommybrücke. The unfortunate loss of the bridge during World War II removed an important link crossing the River Spree in Berlin. Therefore to design a new crossing, the new bridge needed to remember the past but also look toward the future.
Bridge³ is a typical closed arch bridge utilizing the same proportions and design guidelines as the destroyed Brommybrücke. The latter was a three arch masonry bridge with four towers that rested on the top of the bridges' platform. Bridge³ is also a masonry type bridge but instead of repeating rectangular units, it uses a modular cube system with four varying sizes. Structurally the bridge carries the loads exactly the same as any masonry arch bridge, but by alternating the dimensions of each module, it allows for a much more aesthetically pleasing design. Similar to standard masonry units each cube would be fabricated off site allowing for a faster and more economical construction process. The cubes would not only have varying dimensions but also varying functions, as most of them would be structural, some would act as seating, planters, lighting and the largest ones would be commercial spaces.
The bridge also has two “towers”, instead of four, housing leaseable commercial space that could function as cafés, bicycle shops, convenience stores, etc. Allowing commercial space to be part of the bridge allows it to sustain itself financially with the collection of tax or rent from the tenants that are renting the spaces. The income collected could go towards, bridge maintenance, construction costs and events. This now becomes an urbanized bridge for the city of Berlin, integrating itself as part of the urban fabric rather than acting solely as a link connecting two areas together. Hence, the bridge becomes a destination within itself and no longer acts as simply just a utilitarian object.
Bridge³ is a new type of bridge using old ideas to reinforce new concepts of bridge design. It blends urban space, functionality and typology into one cohesive structure. Berlin is a perfect example of a city that could support and integrate such a bridge into their city. A city with a past, but also with a bright future.