Three Modulift spreader beams were used in a one-over-two configuration beneath the hoof of a 350t capacity mobile crane to remove the historic Caste Way footbridge in Southampton, UK in September this year.
Lifting and height specialist TackleStore Ltd supplied T/A SafetyLiftinGear.com supplied the beams – a MOD 70 and two MOD 12s – alongside slings and shackles. The company delivered the rigging equipment to King Lifting for use with the rental firm’s six axle Terex demag AC 350-6. R&W Group, a provider of civil engineering, traffic management, rail, environmental, and plant services, oversaw the overnight removal of the historic bridge, which weighed just over 12t.
“Obviously, when an overnight closure of a public highway is scheduled, it’s very important that the rigging gear is provided in a timely fashion and it meets the reuirements of the lift. Understanding the load and detailed planning are prerequisites to success in such circumstances,” said Karl Chapple, hire and sales manager at SafetyLiftinGear.com
The MOD 70 was used at 12m in lenght above the pair of shorter, 2m-long Mod 12s, which were utilised at either end of the spreader at a 90-degree angle to the top beam. A MOD offers up to 70t at 10.5m and up to 14m at a lower capacity, while a MOD 12 offers up to 12t at 4.75m and up to 6.5, at a lower capacity. SafetyLiftinGear.com provioded 8m-long, 20t capacity and 3m-long, 5t capacity roundslings, which combined to attach the rig to the hook of the crane and wrap beneath the footbridge.
The bridge, which provides a link between part of the city’s historis walls for pedestratians, was succesfully removed during 10pm and 6am. The structure waas taken to Solent Protective Coatings where the menedial works will be carried out over an approximate fove-week perios before the same equipment will return to the site for an overnight window of the same duration to reinstall the footbridge.