Bridge construction for Link-Belt crawler

14 August 2019

A 200USt-capacity Link-Belt 248 HSL is being used to construct traffic and pedestrian bridges for the major highway project in Winston-Salem, North Carolina, USA.

In November 2018 a one-mile stretch of major highway in Winston-Salem was closed for demolition and resurfacing. The stretch of road will reopen in early 2020, complete with new bridge overpasses, modernising on and off ramps, and straightening its path (with fewer curves) through the city.

In order to accommodate a demanding, fast-track, schedule the Link-Belt 248 HSL was purchased to help with the construction of eight traffic and two pedestrian bridges for the project. All but three of the bridges are single span, with 65in (1.65m) bulb tee pre-stressed concrete beams measuring as long as 124ft (37.7m) and weighing up to 113,000lbs (51,255kg). Three of the bridge crossings are single-span (all three within a half-mile of each other), each with six concrete girders placed eight feet apart.

The 248 HSL is positioned on a 100ft stretch of timber mats to lift the girders off transport trailers and into position. This length of timber matting was used to accommodate the 14-month schedule that will see construction all hours of the day in all four seasons.

The 248 HSL travels between each bridge location in the heart of the city. Since most bridges are single span the 248 HSL is able to place the beams by itself.