Nordic Crane Heavy Lift has completed the installation of the lift (flap) bridge on the new King Frederik IX Bridge in Denmark using an Enerpac JS-250 jack-up system, achieving positioning accuracy of less than 10 mm.
The 20 m-long steel flap bridge, weighing 120 tonnes, was installed from a barge as part of the new 300 m-long King Frederik IX Bridge spanning the Guldborgsund strait. Constructed alongside the existing bridge, the project strengthens a key transport link and supports increased railway traffic linked to the Fehmarn Belt Fixed Link development. The flap bridge was supplied by MT Højgaard Danmark.
Fabricated off-site, the steel lift span was transported to site by barge together with the Enerpac JS-250 jack-up system. Once in position, the jack-up unit was deployed beneath the flap and raised by five metres to prepare for installation. The barge was then carefully manoeuvred above the bridge’s support pillars, allowing the flap to be lowered into place. Final height adjustments were carried out using the jack-up system’s adjustable top barrel.
“The Enerpac JS-250 was very stable on the barge, allowing us to accurately position the flap,” said Paul Karlsen, COO Heavy Lift at Nordic Crane. “Its compact design also made it easy to accommodate on the barge alongside the bridge section.”
The Enerpac JS-Series jack-up system is a multi-point lifting solution comprising four synchronised towers. Hydraulic cylinders lift and stack steel barrels in controlled increments, ensuring balanced and precise lifting operations managed by a single operator.
