Wagenborg’s team drove the two AC 500-1 all terrain cranes to the site accompanied by three transport vehicles. Each crane was equipped with a 28.6m long main boom, 160t of counterweight and a 9.6m outrigger base. The company used 29 trucks to transport the CC 2500-1 crawler crane. Four team members erected it in one day into its superlift configuration with a 48m main boom, 120t of counterweight and 250t of superlift counterweight.
The three cranes lifted both bridge 20m to position them on their foundations. The CC 2500-1 crawler crane, equipped with a spreader, was positioned on one side of the construction sections and the two AC 500-1 all terrain cranes opposite. The CC 2500-1 operated at working radius of 20-25m, which could be varied by adjusting the main boom. The work radius of the AC 500-1 was 16m.
Terex said the operator of the CC 2500-1 crawler crane, Marcel Broeders, was faced with a particular challenge when executing the two lifts. He was required to lift and rotate sections into position as well as crawling the vehicle under the full load.
The bridge known as ‘Netkous’ (‘fishnet stocking’) by locals was transported to the site in two sections by self-propelled modular transporters (SPMTs). The larger section was 100m in length and weighed 350t; the second, slightly smaller section measured 90m and weighed 325t. As the motorway and the railway line had to be completely closed for the lift Wagenborg Nedlift had only two days to install the bridge.
