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New Slussen Masterplan.

Our involvement is key in unlocking a complex infrastructure problem in Stockholm. Slussen, named after the locks between Lake Mälaren and the Baltic Sea, is a major transport node with a metro station, adjoining bus terminal and commuter rail station, as well as a busy traffic interchange.

A masterplan to redesign the infrastructure of this busy quarter of Stockholm

Location
Stockholm, Sweden
Client
City of Stockholm
Architect
Foster + Partners, Berg Arkitektkontor
Project Value
£ 800 million
Expertise
Transport

Physical deterioration of the civil engineering structures prompted proposals to transform the area. In 2009 Foster + Partners were appointed to create a new masterplan, and the clients brought us on board for our lateral thinking skills and civil engineering expertise.

The masterplan will deliver a new urban quarter, shifting priority from cars to pedestrians through quayside walking and cycle routes, plus several prominent new buildings. The remodelled infrastructure will not only create a 21st-century interchange but also minimise flooding risk.

We addressed the challenge by redesigning a proposed road bridge, making the 45 m span’s profile slimmer by using a composite steel beam system, and adding 1.5 m headroom. This provides clearance for the underside to be used as public space. Loads within the structure were mapped and the design tailored to match the forces.

Analysis of pedestrian flows also prompted us to recommend removing a planned pedestrian footbridge. The scheme’s remaining footbridge creates a north-south walking route while delivering significant budget savings.

We proposed a cut-and-cover scheme to construct the new subterranean transport interchange, with an underground shopping centre above. The design includes a number of large load transfer structures, to maintain the ground surface while reorganising infrastructure underneath. Detailed analysis of the ground conditions ensured the proposed structures are feasible.

Other initiatives include a new navigation lock with realigned quayside, creating the ‘Water Square’ pedestrianised space. A new bus station, created by excavating into a rock face, would also free up remaining space.

Jackson
House
 
 
Yandex
 
 
 
1
City
Square
 
Speirein.
 
 
 
1
Broadgate.
 
 
Museum
of
London
 
Belgrove
House.
 
 
Geoscope II:
Worlds
 
 
Dubai
Creek
Footbridge.
 
The
Red Sea
 
Project.
Oxford
North
 
 
1–4 Marble
Arch.
 
 
Athletes'
 
Village.
 
Arding
&
Hobbs.
 
Grosvenor
Square.
 
 
Horizon
 
Building.
 
Canada Water
 
Plot K1.
 
Cadogan
Place.
 
 
CASPAR
I.
 
 
Kivik
 
Pavilion.
 
One
Centaur
Street.
 
Nike
myThread
 
Pavilion.
Museum of the
 
History of
Science.
2-12
Symons
 
Street.
Southwark
 
Gateway.
 
Brindleyplace
Café.
 
 
Queen Mary
 
Students'
Union.
30
Kensington
 
Church Street.
Burlington
Danes
Imaging Centre.
 
Bedford
Music
 
School.