The Old City Streetscape project involved upgrading a corridor where historic building
basements protrude underneath the street. To accurately locate each basement, CDM Smith utilized a survey scanner to collect above- and below-ground point clouds in a common coordinate system. The scans were “stitched” together into a 3D survey model that was used to design structural sidewalk sections that span over each basement. This innovative survey solution helped accomplish the City’s redevelopment goals while preserving the integrity of adjacent historic buildings. The result is a sustainable and responsible downtown redevelopment project – a perfect fit for Knoxville’s Old City Historic District.