5.5.6 - Y-1032-16 General Arrangement.pdf

The document is a comprehensive General Arrangement technical drawing set for the Dredge Yaquina, a trailing arm suction Hopper Dredge vessel. The six-page technical drawing set includes detailed cross-sectional and deck-level plans showing the vessel's intricate layout, including multiple decks (house top, upper bridge deck, boat deck, forecaste deck, upper deck, and hold), and comprehensive technical specifications. The drawings provide precise engineering details of the vessel's structural configuration, including spatial arrangements for various functional areas such as engine rooms, crew quarters, navigation spaces, and mechanical systems, with extensive labeling of equipment, compartments, and technical components across different vessel levels.

The drawings are part of a federal contract opportunity (Solicitation Number W9127N25BA012) for the U.S. Army Corps of Engineers Portland District, which intends to conduct a comprehensive shipyard overhaul of the Yaquina. The vessel, built in 1984, measures 200 feet overall with a 58-foot molded beam, and is scheduled for an availability period from December 2025 through February 2026, including a 60-day drydock period. The overhaul will include extensive maintenance tasks such as hull coating, valve replacements, propulsion system inspections, structural assessments, and certification renewals, with the work to be performed at a contractor's facility in California, Oregon, or Washington.