LARSON

LARSON 21.09. 1909 Jamestown NY/USA 28.07. 1984 Crossville TN/USA Floyd Clifford Larson graduated from the Rensselaer Polytechnic Institute, Troy NY, with the CE degree in 1934. He was then construction engineer first in New York, and from 1936 to 1939 employed at Bradford PA, joining then the Virginia Polytechnic Institute, Burruss Hall VA, as assistant professor. He served the US Navy during World War II, and in 1948 became instructor and assistant professor at the University of Oklahoma, Norman OK, until 1955, when appointed associate professor, and professor at the University of Tennessee, Knoxville TN. He was awarded in 1950 the MSc degree in sanitary engineering from VPI. After a short period as assistant director, he became director of the Water Resources Research Center WRRC, University of Tennessee, remaining in this position until his retirement in 1970. Larson authored numerous papers in hydraulics and water resources. His particular research interest was water quality in rivers and reservoirs, and means of improvement. The 1973 paper presents a comprehensive surveillance of water quality conditions in the Forth Loudoun Reservoir on Tennessee River near Knoxville. From 1966 to 1973, the Knoxville Third Creek sewage treatment plant was upgraded from a primary plant to an activated sludge treatment plant. A comparison of the collected data was undertaken to elucidate the effect of these modifications on water quality conditions in the reservoir. A particular consideration was given to the improvements of water quality as related to the expenditure for modification of the treatment facilities. Comments are directed toward the public health significance of the water quality conditions. Larson was member of the American Academy of Environmental Engineers, a Fellow of the American Society of Civil Engineers ASCE, and member of the Water Pollution Control Federation WPCF. Anonymous (1984). Floyd C. Larson. Trans. ASCE 149: 367-368. Larson, F.C. (1968). Water quality investigation 1: Basic data, Fort Loudoun Reservoir. WRRC. Larson, F.C. (1971). Changes in water quality parameters of reservoirs during regulated flow conditions. Research Report 23. WRRC: Knoxville TN. Larson, F.C. (1978). The impact of urban stormwater on the water quality standards of a regulated reservoir. Water Resources Research Center: Knoxville TN. Womack, J.D., Burdick, J.C., Larson, F.C. (1973). Impact of sewage treatment modifications on water quality of a reservoir. Water Resources Bulletin 9(1): 100-115. https://www.google.ch/search?q=%22Floyd+C.+Larson%22+Knoxville P

LATROBE 01.05. 1764 Fulneck, Yorkshire/UK 03.09. 1820 New Orleans LA/USA Benjamin Henry Latrobe was sent at age twelve to Saxony to complete education at Leipzig, Germany. In 1785 he entered the Prussian Army and was twice wounded severely. He returned in 1788 to England and there became an architect, was made in 1789 surveyor of the public offices and engineer of London. Influenced by his political ideas, he came to the United States in 1796. He was engineer of the James River and of Appomattox Canal first. In 1798 he moved to Philadelphia where he built the Bank of Pennsylvania, the Bank of the United States, and also the first water supply of the city. This was the first successful water supply in America, stipulated by the epidemic of yellow fever a few years before. The project advocated the raising of water from Schuylkill River, using pumps operated by steamengines to an elevated reservoir on Center Square. This plan was so practical that it led to an immediate abandonment of the existing scheme. His 1799 book summarizes the concept adopted. President Thomas Jefferson appointed him surveyor of the public buildings in 1803, and Latrobe was then engaged with the architecture of the Capitol. Among the engineers who were responsible for the very early water works of the young United States, Latrobe appears to have been the most skilled, as evidenced by his first water supply of Philadelphia. He was also involved in the construction of Chesapeake and Delaware Canals. In 1812 he became interested with Robert Fulton (1765-1815) in the introduction of steamboats on the western waters, and built the Buffalo at Pittsburgh, the forth steamer descending Ohio River. After the burning of the Capitol due to British war action, Latrobe was called to rebuild it. At his death he was engaged with works for the water supply of New Orleans LA. Anonymous (1887). Latrobe, B.H. Appletons’ cyclopaedia of American biography 3: 626-627. Carter, E.C. (1976). Latrobe and public works. Public Works Historical Society: Washington DC. Chase, E.S. (1967). American water supply engineers. Water and Wastes Engineering 4(4): 54-56. P Donaldson, G.A. (1987). Bringing water to the crescent city: Benjamin Latrobe and the New Orleans waterworks system. Louisiana History 28(4): 381-396. Hamlin, T. (1955). Benjamin Henry Latrobe. University Press: Oxford. P Latrobe, B.H. (1799). View of the practicability and means of supplying the city of Philadelphia with wholesome water. Philadelphia. https://en.wikipedia.org/wiki/Benjamin_Henry_Latrobe P