The Brig O’ Balgownie is a Category A Listed bridge spanning the River Don in Old Aberdeen. The original structure was built in 1314-18 under the orders of Richard Cementarius, the first provost of Aberdeen. It was largely rebuilt in the early 17th century and remained the only northern route into Aberdeen until 1827. The existing bridge comprises a steeply pitched single span and pointed arch with corbelled parapets and narrow roadway.
Scope of Work
Pictured: Example of repair work: preparation work.
LTM were contracted by Aberdeen City Council to undertake conservation and repair work to the central parapet walls. The works consisted primarily of the careful removal of cement based mortar pointing and replacement with a more appropriate lime mortar.
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Challenges and Considerations
Pictured: Brig O Balgownie: scaffolding.
The structure posed significant challenges in terms of site access and scaffolding support. LTM masons worked closely with Speyside Scaffolding to ensure minimal disruption to the historic fabric and permit safe working practices throughout the contract. The scaffolding itself is a work of art, wrapping around the structure to allow LTM masons full site protection and a safe working platform.
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Solutions to Problems
Pictured: Flush pointing up to granite ashlar.
The bridge had been subject to a number of inappropriate repairs over the years. LTM masons were committed to the comprehensive repair and replacement of these materials, resulting in substantial masonry repair and deep void pinning and packing. Finally, the pointing work was applied flush rather than recessed to encourage water runoff and encourage the free evaporation of moisture from the walls.
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