Capturing the Past
The Carmel Masonry Crossing, hidden within the Elan Valley boasts one-hundred and twenty-five years of engineering history. Originally
constructed in 1896 as one of many partitions of the six Elan dams and seventy-three-mile aqueduct, the crossing was primarily utilised as a highway for Birmingham’s drinking water, transporting immense quantities of water through eleven major river valleys in the UK. In an epic feat of engineering, the crossing was constructed from granite and sandstone, two extremely durable materials that are evidenced within its permanency. The prevalence of over a century of structural stability, the Carmel Masonry Crossing, as well as the Elan Valley Dams, are a dominating feature within the scenic Welsh countryside. As a result, its preservation is central to provide a continuing amenity for visitors as well as for the conservation of the natural environments of countless species of flora and fauna that reside in the surrounding areas.
Scanning for Heritage and Restoration
Building techniques from centuries past do not always align correspondingly with modern-day construction methods, not to mention, they very rarely come with detailed blueprints, which can often complicate plans for structural conservation and restoration. As a result of being built by now-outdated ways of construction, inconsistencies, which arguably give the structures the charm and character that makes them beloved heritage sites, create issues by the way of architectural uniformity. It is within these cases that 3D Laser Surveys prevail.
In the case of the Carmel Masonry Crossing, needed repairs to the physical framework of the crossing had to be accurately documented and measured to the finest detail. PointSCAN visited the site in August 2021 and provided an accurate 3D Laser Survey and 3D REVIT Model to the client, allowing for advancements to be made within the restoration project. By utilising a 3D Laser Survey, a single scan can capture 360 degrees of its surrounding environment with an accuracy of 2mm either way. Additionally, these scans are not required to be taken from a single fixed position as dimensions can be applied from any point in a 3-dimensional space, thus making it especially pragmatic in cases where the line of sight is obscured or, in this case, where measurements are needed from a curved surface.
After the scan was completed, PointSCAN was able to provide a detailed REVIT model of the site, allowing for the complete and accurate visualisation of the project available virtually from any location, by any member of the restoration team. This is beneficial especially in the cases of heritage sites as it lessens the number of necessary visits to the location, thus limiting disruptions or damage to spots of historical prevalence.