TIBBETTS

TIBBETTS 28.04. 1882 Oshkosh WI/USA 02.08. 1938 Hollister CA/USA Frederick Horace Tibbetts obtained the BSc degree in civil engineering from University of California, Berkeley CA, in 1904, and the MS degree in 1907. He was appointed instructor and associate professor in civil engineering there. He became partner with a colleague in Alameda County from 1909 to 1918. This firm designed and supervised the construction of projects in Central California, mainly relating to sewage disposal and a large reclamation project in Yolo Basin CA, where massive levees and drainage canals were erected. Tibbetts submitted in 1912 a report on the Knights Landing Ridge Cut, which had a major influence on the reclamation of the Upper Sacramento Valley. This Cut formed an artificial outlet for flood waters in Colusa Basin; it was completed right before the great 1915 flood and thus of immense benefit. From 1918 Tibbetts had his own engineering practice at San Francisco. He continued as chief engineer the Colusa Basin Project, the Sacramento River West Side Levee District, and the Knights Landing Ridge Drainage District. These three Districts provided the complete flood protection for more than 400 km2 of land which previously had been often flooded by both river overflow and foothill drainage. Tibbetts also became chief engineer of other reclamation districts, including the two largest in the Sacramento Valley, preparing reports and designs, but also actively supervising construction. These projects included large gravity intakes and pumping plants, screw pumps, irrigation and drainage canals with capacities of up to 45 m3/s, and levees built by the world’s largest clamshell dredges. In addition, a 50 m high rock-fill dam was erected including head gates, siphons, and flumes. Two other outstanding irrigation works were these of the Nevada Irrigation District in Nevada County CA, and of the Santa Clara Valley Water Conservation District, the latter for replenishment of the underground water supply. He was in parallel also active for civil duties, and chaired from 1925 to 1927 the Irrigation Section of the Commonwealth Club of California. He was ASCE member from 1917. Anonymous (1929). Tibbetts, Frederick H. Who’s who in California: 182-183. San Francisco. P Anonymous (1940). Frederick H. Tibbetts. Trans. ASCE 105: 1924-1928. Keyes, C.G. (2004). History of the Irrigation and Drainage Division to the Environmental and Water Resources Institute 1922-2004: 261-272. Water Resources and Environmental History: ASCE: Reston VA. Tibbetts, F.H. (1929). Repair of breaks in outlet tunnel of rock-fill dam. ENR 102(23): 904-906.

TIDD 01.08. 1827 Woburn MA/USA 20.08. 1895 Woburn MA/USA Marshall Martain Tidd lost the use of his right arm when he was a child. He began his engineering experience as assistant on the construction of a dam across the Merrimack River at Lawrence MA, under Charles S. Storrow (1809-1904). This was before photography was invented, so that Tidd had to make freehand sketches showing the work evolution. After dam completion he continued making plans of machines for more than two decades. In the 1860s he was connected with the construction of the dry docks at East Boston MA, and was the consulting engineer and designer of the dry dock at the Erie Basin, Brooklyn NY. In 1872 Tidd was elected water commissioner of works for the water supply of various cities in Massachusetts, New Hampshire, and Maine. He was also employed to make improvements or additions to existing works in these cities. He designed the sewerage system at Marlboro MA. At the time of his death he was employed on the water works of Bath ME, the construction of the Woburn sewerage system, and as the consultant for various other engineering projects. As an engineer, Tidd had a remarkable mechanical ability, keen observation, fertility of resource, and entire honesty of purpose. He had in his private life a great interest in horticulture, and possessed a fine collection of shrubs and flowers; he was member of the Massachusetts Horticultural Society. Another of his hobbies was his workshop, which was a model in its equipment of tools and their neat arrangement. In his relations with the members of his profession, he was highly liberal and generous, ever ready to impart his great knowledge. He was a man of pronounced individuality, active and alert both in mind and body, an excellent companion indeed. He was a member of the American Society of Civil Engineers ASCE since 1878. His death was occasioned by heart failure, the result of a severe attack of a grippe two years earlier. Anonymous (1897). Marshall M. Tidd. Trans. ASCE 37: 568-570. Tidd, M.M. (1852). View of Woburn. Upham & Colburn: Woburn MA. Tidd, M.M., Hobart, S.B., Simpson, J.E. (1860). Simpson’s patent drydock, East Boston. Tidd’s Lith: Boston MA. Tidd, M.M. (1863). View of the English steamer Caledonia wrecked on Cape Cod. Tidd: Boston. https://www.historicplaces.ca/en/rep-reg/place-lieu.aspx?id=5641 https://records.ancestry.com/Marshall_Martain_Tidd_records.ashx?pid=15995582 P