Project Description: The 18 km long fixed link across Storebaelt (designed by Dissing+ Weitling) comprises two bridges and a rail tunnel. Construction work on Storebaelt took place from 1988-1998. The motorway across Storebaelt opened in 1998 and the railway opened in 1997.
General: Construction costs totaled DKK 21.4 billion (Approx. 3.1 USD) in 1988 prices, cost was evenly divided between the road and rail link. The bridges 18Km/ 11.2Mi (East Bridge is 6.8km/ 4.2Mi and Suspension Bridge is 2.7km/ 1.7Mi) in length and are consisting of a sub-structure and a superstructure (pylons, anchor blocks, bridge piers and abutments).
Steel Superstructure: The suspension bridge length of 6.8km / 4.2mi, width of 31m /102ft, between the two anchor blocks is approx. 2.7km/ 1.7mi long and consisting of 1.6km/ 1.0mi free span between the two pylons plus the two side spans between the pylons and anchor blocks of 535m/ 1755ft each with a connection of 23 approach spans. The East (name is from the span over the Eastern Channel) Bridge, an international waterway with a passage height is 65m/ 213ft and is the third-longest suspension bridge span. The West Bridge was built between 1989 and 1994, and is a combined road and rail bridge, is 6.6km/ 4.1mi long. Consisting of two parallel bridges, one for the road and one for the railway.
Pylons:At 254m/ 833ft, they’re one of the highest points in Denmark. The caissons for the pylons were cast at a factory in Kalundborg and towed out 70km/ 43mi to the bridge alignment. Each caisson weighs 32,000 tons. The rest of the pylons were cast in situ, 4m/ 13ft at a time, in a so-called climbing formwork which keeps the concrete dry and ensures setting.
Anchor Blocks:The caissons are placed on stone cushions to give them a stable base. Like the pylons, the rest of the anchor blocks were cast in situ. Each anchor block is approx. 63m / 206ft high.
Piers and Abutments:East Bridge’s abutments and the first bridge pier were cast in situ owing to the low water depth. The other bridge piers were prefabricated and towed out to the bridge alignment. There are a total of 19 bridge piers at 6,000 tons each, 12 of which are between Zealand and the eastern anchor block and 7 between Funen and the western anchor block.
West Bridge 62 bridge piers, 63 bridge spans, 51 spans of 110m/ 361ft and 12 spans of 82m/ 269ft. Each bridge span comprises a road and rail girder, with a passage height of 18m/ 59ft.
Cabling:The road section is carried by two parallel cables, which extend from one anchor block across the top of the two pylons to the other anchor block. The cables are each approx. 3km /1.9mi long and 83cm /33in diameter. Each cable comprises a long series of 5.38mm/ 0.22in strands, with 18,647 strands in each cable. The cables are held together by rust-proof steel wires.