HARDER

HARDER 02.12. 1926 Fullerton CA/USA 31.12. 2006 Talequah OK/USA James Albert Harder graduated in 1948 with the BS, in 1952 with the MS and 1957 with the PhD degree from University of California, Berkeley CA. After having been design engineer with Soil Conservation Service SCS from 1948 to 1950, he was resident engineer at Berkeley CA from 1952 to 1957, from when he took over as assistant, in 1962 as associate, and from 1970 to 1991 there as professor of civil engineering. Harder was a Fellow of the American Association for the Advancement of Science AAAS, and of American Society of Civil Engineers ASCE. Harder is known for his great hobby, the Unidentified Flying Objects UFOs, although his distinguished career as a hydraulic engineer and teacher. The latter included elementary fluid mechanics, advanced hydraulics, design of hydraulic structures and systems, computer programing, and hydraulic laboratory practice. His research in fluid mechanics was broad-ranging and innovative. His publications, though not numerous, were stated to be of high quality. Topics included river bends, sustained swimming of dolphins, analogue simulators for flood control systems, the identification of time-dependent nonlinear hydraulic systems, and automatic control of irrigation control gates. He developed already in the 1950s electric analogue models simulating flows within San Francisco Bay, rating curves of rivers, non-linear storage effects within river levees, and reservoirs in which the water surface area was non-linearly related with the depth and from which programmable flow releases could be made. This development was a major advance in these years. He devised a system used by the US Corps of Engineers to control flooding of the Kansas River, and he further devised a system for the California Department of Water Resources for the Delta to combat salinity intrusions. His 1957 work received the Best Paper Award from the American Water Works Association. Banks, H.O., Richter, R.C., Harder, J.A. (1957) Sea water intrusion in California. Journal of the American Water Works Association 49(1): 71-88. Harder, J.A. (1957). Ground water development: Basin recharge. Trans. ASCE 122: 486-488. Harder, J.A., Mockros, L., Nishizaki, R. (1960). Flood control analogs. Hydraulic Laboratory, Water Resources Center Contributions 24. University of California: Berkeley. Harder, J.A. (1963). Analog models for flood control systems. Trans. ASCE 128(1): 993-1004. Harder, J.A., Nelson, J.O. (1966). Analog modeling the California Delta Tidal System. Journal of the Hydraulics Division ASCE 92(HY4): 1-10; 93(HY2): 77-78. https://www.universityofcalifornia.edu/senate/inmemoriam/jamesharder.html P

HARDESTY 05.04. 1865 Lincoln MO/USA 12.08. 1944 Portland OR/USA William Preston Hardesty received his education at the University of Missouri, Columbia MO, obtaining the civil engineering degree in 1886. Until 1888 he was engaged with the Interstate Consolidated Rapid Transit Railway Company, Kansas City MO, from when he joined the Denver Tramway Co. until 1890. He was in 1890 assistant engineer on construction of the Colorado Canal for the Denver and Rio Grande Railway Co., in 1891 assistant engineer for the T.C. Henry Canal Co., San Luis Valley CO, and then was employed by a Gold Company in Idaho. From 1893 to 1903 Hardesty had a private practice at Salt Lake City UT; he was in 1903 appointed assistant engineer in the US Reclamation Service. During his stay at Portland OR, Hardesty was, among many other involvements, also in charge of the design and construction of a new water works station. The 1908 paper describes earlier works for this oldest city in the Pacific Northwest, which was settled around 1850. The city acquired in the 1880s, when the population amounted to some 25,000 inhabitants, the entire system of the Portland Water Co. During the next decades various divisions of the water supply scheme were constructed, based on a standard gravity supply. Next, a number of reservoirs was erected, to distribute the water and to improve the scheme hydraulically. James D. Schuyler (1848-1912) was consultant for these works. On Hardesty’s grave plate it is stated: ‘He devoted his life to his work, and to the out-of-doors and the friends he made there’. He was indeed a great lover of nature, as is documented by various activities in the mountains of California and Oregon States. The so-called Mazama Club organized also lectures on topics including botany, geology, ornithology, and local history. The attendance during these activities was at times larger than 100 persons, with Hardesty as a lecturer on various topics. He also organized climbs to the nearby mountains with explorations of attractive spots. Anonymous (1916). William P. Hardesty. Engineering News 76(2): 55. P Hardesty, W.P. (1903). Utilization of Utah Lake as reservoir. Engineering News 49(21): 442-445. Hardesty, W.P. (1906). Truckee-Carson irrigation project. Engineering News 56(16): 391-401. Hardesty, W.P. (1907). The water and electric power systems of the Portland Railway Light and Power Company, Portland OR. Engineering News 57(26): 699-705. Hardesty, W.P. (1908). Water-works of Portland OR. Engineering News 59(6): 137-141. Hardesty, W.P. (1919). Mazama activities for the past year. Sierra Club Bulletin 10: 231-232.