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Knight Architects gets go-ahead for Finland's longest bridge

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Plans for a £64 million bridge designed by Knight Architects in Helsinki, Finland, have been approved

The bridge is the centrepiece of a wider £222 million scheme, called Kruunusillatwhich is being drawn-up in collaboration with WSP Finland. It will be nearly a mile long (0.7 miles) and run across the Kruunuvuorenselkä bay in Helsinki.

Once completed, it will be the longest bridge in Finland.

The structure will provide a crossing for pedestrians, cyclists and trams from the Kruunuvuorenranta development to the east of the capital - a scheme providing 580,000m² of residential space and 6,000 housing units by mid-2020 - to the city centre.

Knight Architects won a design competition to land the project in 2013. The proposals by the bridge specialists include a central, 135m-tall pylon with symmetrical cables attached.

Tom Osborne, an associate at Knight Architects, said: ’[The bridge] will extend Helsinki’s excellent public-transport system, significantly reduce journey times, and create a critical link to new developments.

’This will be a high-quality, lasting piece of infrastructure, which will be instantly recognisable and synonymous with Helsinki. We look forward to progressing the design with WSP Finland.’

Construction is due to start on site in autumn 2018, with the tramway set to be opened in 2025. 

Project data

Location Helsinki
Type of project Cable stayed pedestrian, cycle and tram Crossing
Client City of Helsinki
Architect Knight Architects
Landscape architect WSP Finland
Structural engineer WSP Finland
M&E consultant WSP Finland
Quantity surveyor WSP Finland
Lighting consultant WSP Finland
Funding Public and private
Tender date 2017
Start on site date 2018
Completion date 2026
Gross internal floor area 0.7 miles long
Form of contract and/or procurement Traditional
Total cost £75 million

Architects’ view

The design makes direct reference to the historic crown ownership of the bay area: the distinctive form of the central 135m pylon of the symmetrical cable-stayed design is a tall slender diamond, with multi-faceted surfaces designed to catch light and shadow both by day and night.

P211 gemma regalis 13 small

P211 gemma regalis 13 small

Source: Knight Architects

The design by Knight Architects


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