Hardengreen Bridge Panels Click into Place
The second weekend of work (Friday 28th – Monday 3rd March) to install the 71.5m Hardengreen Bridge deck has been completed successfully.
Saturday morning saw the panels being craned into place.
The remainder of the 30 precast concrete bridge panels were lifted into place by a 220 tonne crane and fitted onto the four bridge beams which were installed during the first weekend of work. Once the precast units are installed the steel reinforcement will be fitted and the concrete bridge deck cast.
The u-shaped panels provide the track bed and wall-wings of the bridge.
Hugh Wark, Borders Railway project director, said: “We would like to thank road users and local people in particular, for their patience whilst the Hardengreen roundabout has been closed. The team’s hard work and the good weather conditions have allowed us to complete the installation on schedule. This work marks one of the project’s most significant construction milestones to date and shows exciting progress towards track-laying.”
Each panel is fitted together by threading steel reinforcements through the units. Once completed 350 tons of concrete will be placed to form the deck.
During phase one of works, a 30-strong construction team worked around the clock over the weekend to carry out the precise process of lifting the bridge’s four 107 tonne beams into place with a 1,200 tonne crane. Sections of the bridge deck and parapets were also installed.