Intermediate (65%) Design - Backup Power Generator Building 1907

This is an intermediate (65%) design document package prepared by POND CDM Smith JV LP for the U.S. Army Corps of Engineers, Japan District, containing comprehensive architectural, structural, civil, and electrical design drawings for a backup power generator installation at U.S. Navy Yokosuka Base, Commander Fleet Activities, Yokosuka, Japan. The project includes demolition of the existing 50KW diesel generator building, fuel tank, and transformer station, followed by construction of an 880KW/1100KVA backup diesel generator system with a 5,000-gallon subbase fuel tank, new 6.6KV/1000-amp medium voltage switchgear, a 1,000KVA pad-mounted transformer, and a 75KVA low-voltage transformer to provide alternative electrical power for the Defense Logistics Agency facility Building 1907.

The design package encompasses site demolition and utility plans, civil site details including asphalt patching and bollard specifications, structural foundation plans and details for equipment mat foundations, and comprehensive electrical drawings including one-line power diagrams, electrical site plans, ductbank sections, grounding details, and equipment specifications. Work must comply with International Building Code 2024, ASCE 7-22, Unified Facilities Criteria 3-301-01, Japanese building regulations, and Japanese electrical standards (JIS). The contractor is responsible for coordinating all disciplines, providing power system studies per Section 26 05 73, obtaining required submittals and shop drawings prior to construction, and conducting proper testing and commissioning of all equipment. The project location is accessible via Route 16 through the main gate at Yokosuka Naval Base.