Recording cracks photographically

Introduction This paper is a follow‐up to one published in Structural Survey in 1985 under the title of ‘Monitoring crack propagation using close‐range photogrammetry’. In that initial paper, some of the equipment and techniques used in close‐range photogrammetry were outlined and details were given of an application of the method to monitor the propagation of cracks within one of the external walls of a detached house which was undergoing movement due to poor construction of the foundations.