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| Keywords: General view of construction in progress on the spillway - NARA - 295306.tif Scope and content General view of construction in progress on the spillway The intake structure is shown at the left with forms for the outlet conduits extending almost to the ladder seen near the right of the picture The cut-off trench on the axis of the dam is shown in lower right The foundation for the gravity ogee was excavated in steps to provide a more satisfactory bond with the concrete and grouted to prevent weathering during construction ;Project Los Angeles River Improvement ;Location Hansen Dam across Tujunga Wash ;Funds Regular funds Work prosecuted under Contract No W-509-Eng 689 General notes 295306 Local identifier Department of Defense Department of the Army Office of the Chief of Engineers Los Angeles District 09/18/1947 - 06/14/1979 NARA's Pacific Region Riverside NRHAR 23123 Cajalco Rd Perris CA 92570 Record group Record Group 77 Records of the Office of the Chief of Engineers 1789 - 1999 Record group ARC 406 General Administrative Files compiled 1935 - 1952 Series ARC 295295 File unit 800 912 Photos Volume 1 1936 - 1940 File unit ARC 295305 Variant control numbers NAIL Control Number NRHL-77-LAGA1-800PHOTOS1-GOF01<br /> Other Identifier General Admin Files 1935-1950 Box 44 Files 800 912 Photos V1 2 yes Other versions <gallery> File General_view_of_construction_in_progress_on_the_spillway_-_NARA_-_295306 tif tif File General_view_of_construction_in_progress_on_the_spillway_-_NARA_-_295306 jpg jpg </gallery> NARA-cooperation PD-USGov NARA TIF images with categorized JPGs | ||||