OCR

5 - San Manuel Power Plant Exhaust heat from smelter furnaces was utilized to produce steam to drive turbo-electric generating units in this 10,000 k.w. installation, engineered and constructed by Utah in connection with the huge non-ferrous metallurgical plant near Tucson, Arizona. The power was for use in operating the metallurgical plant machinery, for the townsite nearby, and for the mining facilities 17 miles away. Transmission to the mine was through lines constructed by a sub-contractor under Utah supervision. 6 - San Manuel Copper Corporation Railroad In conjunction with the non-ferrous metallurgical plant built for the San Manuel Copper Corporation were two standard gauge railroad lines, one seven miles and the other more than thirty miles long. The seven mile line was solely for ore transportation, and included two ninety foot high steel bridges, a reinforced concrete and steel highway overpass and numerous culverts and other appurtenant structures. The finished copper product was hauled to a junction with the Southern Pacific Railroad over a 30 mile main line railroad. Included in construction of this line was approximately 2, 000, 000 cubic yards of rock and earth excavation, one major river crossing consisting of sixteen 80 ft. long deck girder spans, twenty-five wooden trestles varying in height up to 60 ft., approximately 120 culverts of varying diameter up to fourteen feet, one railroad overpass, depot, interchange trackage, yard trackage and miscellaneous appurtenances. Preliminary surveys as well as the design, engineering and field layout were performed by Utah prior to commencement of work. 7 - Recondition and Line for Western Pacific Railroad Company in Keddie, California, for $887, 000. 8 - Tunnel Rehabilitation Rehabilitation and modernization of tunnels on Western Pacific Railway's famous Feather River Route in California called for removal of old timber supports and lining, excavation of loose and sloughing ground, installation of reinforcing steel and placing