The new Rauchmühle bridge in Innsbruck, Austria, was built close to its final location to keep disruption to a minimum. Engineers then began lifting the structure more than five metres off the ground using hydraulic presses.
Engineers used heavy duty platforms to move the bridge(Image: ÖBB)
A massive 1,400-tonne bridge has been transported nearly 100 metres through the heart of Innsbruck, Austria without requiring a single crane.
Austria’s state-owned railway operator, ÖBB, accomplished the feat at the weekend as part of a major overhaul of the city’s rail infrastructure. The new Rauchmühle bridge had been constructed near its ultimate destination to minimise disruption. Once completed, engineers began raising the structure more than five metres above ground level using hydraulic presses.
This phase required careful execution to maintain the bridge’s stability, reports the Express. On Sunday morning, the bridge began its slow journey. Rather than cranes, the team used heavy-duty platforms typically found at industrial facilities.
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A total of 12 units were deployed, featuring 56 axles and 112 wheels. They travelled at approximately 1-2 km/h, providing precise control as the bridge rolled into position over Hallerstraße. The structure was also rotated roughly 90 degrees before being lowered onto its new supports.
Engineers stated the approach was safer and more precise than hoisting the bridge with cranes, particularly in a densely populated urban environment. Construction on the scheme continues.
Over the coming days, teams will install bearings, complete the supports, fit railway equipment and prepare the line for reopening. Rail services between Rum and Innsbruck Central Station remain suspended until January 29, with replacement buses running instead. The new bridge replaces a metal structure that had been in service for more than 60 years. Around 270 trains crossed it every day, and a combination of heavy use and harsh Alpine weather meant it had reached the end of its technical life.
The replacement is made from concrete, offers a longer lifespan, reduces noise and should provide a smoother ride for passengers. ÖBB released several figures showing the scale of the operation:
Engineers described the relocation as one of the most complex moves carried out on an Austrian railway site in recent years. The bridge is expected to come into full use once the remaining work is completed later this month.
Meanwhile, those who wish to sample the delights of Denmark and Sweden can visit both in just one day, thanks to a striking ‘disappearing bridge’.
With many of us eyeing up quirky travel destinations this summer, this intriguing construction is a bit of a must-see. Remember, however, it has a different name depending on what side of the crossing you’re on – Øresund in Danish and Öresund in Swedish.
What’s striking about this structure is that, while it begins as a bridge, it cleverly plunges into the ocean, transforming into a tube tunnel in such a way that makes it appear as though it simply vanishes beneath the surface. Completed in 2000, following a grand opening ceremony jointly hosted by Queen Margrethe II of Denmark and King Carl XVI Gustaf of Sweden, Øresund connects the two great cities of Copenhagen and Malmö.
All in all, the structure is approximately 16km in length, and cost £2.3 billion (£4.8 billion in today’s money) to build over a period of five years. Project designers opted to incorporate a tunnel over fears that a complete bridge could well interfere with radio signals from nearby Copenhagen Airport. This design also means a readily available shipping channel, whatever the weather.
More than a quarter of a century on since it was first unveiled, Øresund is regarded as a roaring success, helping to improve economic prospects for both Denmark and Sweden, and is credited with helping to build a trading region of some 4.2 million people, known on the world stage as the Øresund Region.
A recipient of the prestigious IABSE Outstanding Structure Award, Øresund is also immortalised in popular culture, being a key setting for the Swedish/Danish TV crime drama The Bridge. Seaon one, which first aired in 2011, kicked off with the discovery of a body on the bridge, located just between the two countries.