Floating gantry for bridge project

5 February 2020


Lacking space for a mobile crane, heavy lift equipment rental company LGH has used its Enerpac telescopic hydraulic gantry to assist its customer in removing the Steenhuisenbrug bridge at Burdaard in Friesland, The Netherlands.

As part of a regional programme of highway upgrades, the Steenhuisenbrug bridge is being refurbished and temporarily replaced with an emergency bridge for pedestrians. Located in a congested residential area, LGH’s customer was unable to deploy the mobile crane it normally uses for these types of lifts. However, the Enerpac SL100 gantry was perfect for the project. Mounted on a pontoon, the gantry provided a stable lift for the 48t bridge deck and its transportation.

With a lifting capacity of 100t, the Enerpac SL100 Super Lift hydraulic gantry uses a narrow 610mm track gauge for accurate load positioning in confined or limited-access spaces. Each gantry leg features self-propelled wheels for travel along the narrow-gauge track together with an Intellilift synchronised control system.

Positioned on a pontoon either side of the bridge deck, slings suspended from the gantry’s header beams were attached to the deck. Using the gantry’s wireless controller, the deck was lifted clear of the bridge and the pontoon rotated allowing the deck to be moved 100m along the waterway. The deck was then lifted by crane onto nearby land for refurbishment over the next six weeks.