Historical Construction SitesImages of construction and repair projects from the early 20th century, showcasing foundations, pipelines, and naval vessels with a historical context. Mangahao Hydro-Electric Scheme : 30th and 31st visits, by Leslie Adkin. 238 assets in this story6145-489415736145-487095566145-487089526145-504559426145-529452206145-529432996145-487087226145-559726816145-487044836145-487079236145-487081196145-487094826145-487096016145-487078486145-486534996145-529437936145-514070366145-487095906145-519300506145-487095306145-487094996145-529438706145-487028006145-542975526145-486535036145-588938086145-486501216145-487095296145-529459936145-438003286145-505407786145-467041696145-486535306145-486106956145-489406596145-546792056145-487081456145-48650326 PREVIOUS of 3 NEXT