KELLER H

GERMANY (see also List of Individuals)

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26.1.1851 Giessen/D - 4.8.1924 Berlin-Dahlem/D

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Hermann Keller started his civil engineering studies at Aachen Technical University in 1872 but was forced to an interruption because of wounds from the Franco-Prussian War. In 1878 he graduated from the Berlin Polytechnic School and initiated his career with travels, where he was impressed of the various engineering works. From 1886 he was in charge of lock works on the Nord-Ostsee-Kanal. From 1892 Keller investigated the risk of floodings in the Prussian main rivers, which initiated his research interest in water resources. Until his end, he continued in this topic, finally as the German expert in these questions. His career was spent in the Prussian water department, where he was a Baurat from 1893, a Vortragender Rat from 1901, a director of the Landesanstalt für Gewässerkunde from 1902, a Geheimer Oberbaurat from 1904 and finally from 1916 Wirklicher Geheimer Oberbaurat.

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To answer questions relating to the potential of floods of Germany's large rivers, Keller prepared a book on the rivers of Eastern Germany published in 1899. Shortly later, the book on the Weser and Ems River catchments followed. In total four volumes were released. The result of these works was largely in excess of the original flood protection and included general knowledge on the hydrologic and hydraulic characteristics of the North German main rivers and its tributaries in Imperial Russia and Austria. Keller was also involved in the design of the Waldeck Dam and the regulation of the Emscher River. The Edersee resulting from the dam is today's third largest in Germany located close to Fulda in Central Germany.

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_{Heiser, H. (1924). Hermann Keller. Deutsche Wasserwirtschaft 19(9): 263.}

_{Keller, H. (1881). Studien über die Gestaltung der Sandküsten und die Anlage der Seehäfen im Sandgebiet. Zeitschrift für Bauwesen 31: 189-209; 31: 302-317; 31: 412-421; 32: 20-35. Keller, H. (1885). Die Anlage der Fischwege. Centralblatt der Bauverwaltung 5(25A): 259- 278.}

_{Keller, H. (1899). Memel-, Pregelund Weichselstrom. Reimer: Berlin.}

_{Keller, H. (1901). Weser und Ems: Ihre Stromgebiete und ihre wichtigsten Nebenflüsse. Berlin. Keller, H. (1904). Hochwassererscheinungen in den deutschen Strömen. Costenoble: Kassel. Keller, H. (1906). Niederschlag, Abfluss und Verdunstung in Mitteleuropa. Berlin. Auch Jahrbuch der Gewässerkunde Norddeutschlands 1.}

_{Poggendorff, J.C. (1904). Keller, Carl Johann Ludwig Hermann. Biographisch-Literarisches Handwörterbuch 4: 738; 6: 1299; 7a: 722. Barth: Leipzig, with bibliography.}

_{Soldan, W. (1924). Hermann Keller. Zentralblatt der Bauverwaltung 44(34): 286-287. P}