During the next few years the organization of the Reclamation Service was completed and plans outlined for extensive work in each of the western and states, work being initiated in most of these. In 1907 when Mr. Walcott left the Geological Survey to become Secretary of the Smithsonian Institution, the Reclamation Service was organized as a separate bureau of the Department of the Interior with Mr. Newell as Director and Arthur P. Davis as Chief Engineer. Construction was rapidly pushed until twenty-six projects, including reservoirs, canals and related works were completed in whole or part, notably the Roosevelt, Shoshone, Arrowrock, Gunnison Tunnel sad other, involving the investment of over $100,000,000, in 100 dams, of which ten form reservoirs of national importance also 25 miles of tunnels, 13,000 miles of irrigating canals and ditches with regulating works, bridges, steam and hydro-electric generators, transmission lines, pumps and devices connected with supplying water to 20,000 farms. Special efforts were made to attain the highest practicable economy and efficiency in the execution of the work and to meet the need and desires of the settlers under them.
Frederick Haynes Newell was Secretary of the National Geographic Society from 1892 - 1893 and from 1897 - 1899, Secretary of the American Forestry Association after 1895, President of the American Association of Engineers in 1919.
Author: Oil Well Drilling (1888); Agriculture by Irrigation (1894) ; Hydrography of the Arid Regions (1891) ; The Public Lands of the United States (1895); Irrigation in the United States (1902) ; Hawaii, Its Natural Resources (1909); Principles of Irrigation Engineering (1913); Irrigation Management (1916) ; Engineering as a Career (1916) Water Resources, Present and Future Uses (1919), etc.
Awarded the Cullum gold medal by the American Geographical Society.