Norway-headquartered Nordic Crane has deployed its Enerpac JS-250 jack-up system to install the lift bridge on the new King Frederik IX Bridge, which facilitate railway services crossing the Guldborgsund strait between the islands of Lolland and Falster, in Denmark.
Measuring 20 m in length and weighing 120 tonnes, the steel flap bridge was installed from a barge with a clearance of less than 10 mm. Now measuring 300 m long, the expanded King Frederik IX Bridge will allow Denmark’s transport network to handle more railway traffic, whilst the flap can open for ship traffic, allowing taller vessels through.
The flap bridge was built off-site and transported by barge, along with the Enerpac JS-250 jack-up. Resting on the barge deck, the JS-250 was deployed under the flap and raised 5 m in preparation for final installation. Moving the barge above the flap’s support pillars, the bridge was lowered onto the pillars with the final height adjustments made using the jack-up’s adjustable top-barrel.
“The Enerpac JS-250 was very stable on the barge, allowing us to accurately position the flap,” said Paul Karlsen, chief operating officer heavy lift, Nordic Crane. “Also, the compactness of the JS-250 jack-up meant we were able to easily accommodate it on the barge together with the bridge flap.”
Last month, HLPFI reported that an Enerpac EVO system had been used to retrofit an Italian viaduct.
