CONCRETE CONSTRUCTION. WASHINGTON WATER FILTRATION PLANT John Maclennan 1907
CONCRETE CONSTRUCTION . View showing exterior of concrete vaulting of filter beds before being covered with earth. Also shows the round ventilating manholes. In the background, at the right, the vaulting has been covered with two feet of earth, ready to receive a coat of top dressing, after which it will be sown with grass seed, so as to give the finished filter bed the appearance of a park. WASHINGTON FILTRATION PLANT. View of filtered water reservoir during construction, showing method of building the concrete pillars for supporting the groined arches of the roof. These pillars are monoliths 25 feet high and 30 inches square. This reservoir covers ahout two acres of ground and is capable of holding 25,000,000 gallons of water. It is considered the finest piece of work of its kind in existence. These works were completed with great expedition under the direct supervision of John Donald Maclennan, M. Am. Soc. C. E. Artist/engraver/cartographer: Scientific American. Provenance: "The Americana "; Editor-in-Chief Frederick Converse Beach, Managing Editor George Edwin Rines, Published by Scientific American Compiling Dep't, New York. Type: Antique book illustration.
Size: 3456px × 5437px
Location: Engineering
Photo credit: © Antiqua Print Gallery / Alamy / Afripics
License: Royalty Free
Model Released: No
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