We now get into a sequence that illustrates how concrete was handled during the construction of the many historic hydro dams that made our area a pioneering one for the development of hydroelectric power. Real horsepower was used in moving concrete during the construction of the Upper Bonnington plant in 1906. (Walter Volovsek collection)
We now get into a sequence that illustrates how concrete was handled during the construction of the many historic hydro dams that made our area a pioneering one for the development of hydroelectric power. Real horsepower was used in moving concrete during the construction of the Upper Bonnington plant in 1906.
We now get into a sequence that illustrates how concrete was handled during the construction of the many historic hydro dams that made our area a pioneering one for the development of hydroelectric power. Real horsepower was used in moving concrete during the construction of the Upper Bonnington plant in 1906.
Walter Volovsek collection.
