General view of construction of spillway. Men are working at the top of the shuttering in centre of image. It is annotated "Spillway construction right bank 1-2-60"
View of construction of shuttering for the spillway, men can be seen working with scaffolding poles centre right. Image is annotated "Shuttering spillway section left bank 2-3-1960"
View of excavation work for spillway. Men at work in bottom centre of image, between two cranes, one above left and the other to their right by scaffolding. The image is annotated "Spillway excavation from right bank 2-3-60"
View of construction work across the valley. Several men working on the scaffolding and in the spillway, a crane to the left. The image is annotated "Spillway excavation from left bank 2-3-60"
Men working on the spillway, including a man with a theodolite standing on foundation. Crane on right is lowering something. The image is annotated "Spillway foundation excavation view from left bank upstream 4-4-60"
Close-up of concrete and shuttering work, men working on trench (bottom right) and up on scaffolding (centre left and top right)
The image is annotated "Cut-off spillway section 2-6-60"