CHAPTER It, SECTION 5 snown, was six feet wide by six feet eight inches CONSTRUCTION. Work commenced or 17 June 1953 and all work was completed on 5 BUILDING NO. 419 - BARGE SLIP SITE ELMER as 90°. completed as of 15 October. Figure 2-76 igh. GENERAL.This stricture consisted of a steel sheet-pile enclosed mole. 31’ - 3” wide by 86’ - 8” long, beyond which were two creosoted pile finger piers, each 20’-0" x 132’-0, enclosing a slip for barge mooring. Spanning the slip was a stvel gantry crane of 60" - 0” span. The enclosed barge slip was 40'-0” x 130°-0” and was fitted with guide pile-wings for aid in docking floating craft. The finger piers were designed to accommodate a ten-ton tractor crane for loading or unjoading barges. The pier and slip were used as an adjunct of the Assembly Area which was located immediately adjacent to the land end of the pier. The mole and piers were also available for the handling of any general cargo. Floodlighting was provided for night operation, and power outlets were provided as directed by the User. MECHANICAL. A steel gantry crane serves the barge slip. The main hook has a capacity of 24-tons with a 3%7-font hook lift above the crane rails. An auxiliary hook with a five-ton capacity also serves the slip. ENGINEERING. Theoriginal criteria were received on 6 March 1953. The criteria developed as the design progressed and many changes were made. Final criteria were approved on 15 June. Design work started on 145 April. Four drawings and one sketch were prepared and submitted from 29 April to 11 August. Approvals were dated from 22 Mayto 21 August. Figure 2-201. March 1954. Figure 2-200 shows the barge slip (see Station 10) shows the slip completed with gantry crane in operation. Barge Stations 10 and 40 were undergoing repairs and alterations to fit them as Stations. SCIENTIFIC POWER PLANTS SITES VARIOUS GENERAL. The scientific power requirements known in early 1953 were examined and it was determined that one central clectric power generation plant for a closely related group of Scientific Stations, to be used for one test, would be the most feasible. A single plant with a few large units(in lieu of single independent plants) was more economical to build and operate, more reliable in voltage and frequency con- trol, more stable under varying load conditions within the limits of an cconomical distribution system, and where the function of a unitized system could be related to a single test. On 1 May 1953 it was recommended that central Power Plants for power generation be established at sites Charlie, Dog, Nan, Tare and Ursula. Oa 5 June 1953 these recommendations were approved. At site Ursula, IVY Station U-108 was reactivated for this purpose. At sites Charlie, Dog and Tare, expendable construction was used. At site Nan, Building NA-500 was a 38°-0" x 49°-0" x 14’-0° high reinforced concrete structure with earth fill on one end and two sides to the finished grade. ‘The roof had a two-foot thick earth fill over it and the exposed end wall of the building had a 15’ - 0” long by 1i9’-6” high maximum retaining wall Scientific Power Plants - Typical Feundations Page 2-202 AO . ee i : ' i \ ‘ : : awedee eee Gg ssh ‘ .