B.08.Amendment W912EE2BA009-0002_Combined Bulkheads_from Lock 1 Drawings.pdf

These are engineering design drawings for Lock Bulkheads (Types A, B, and C) for the Red River Waterway Lock & Dam No. 1, Phase III Construction project. The detailed technical drawings, dated June 1978, include comprehensive structural plans and sections for lock bulkheads with intricate specifications for components such as upper and lower trusses, horizontal truss layouts, emergency bulkhead hoist operations, end framing, and various mechanical details like reaction rollers, bumpers, bearing pads, and water seals. The drawings are prepared by the U.S. Army Engineer District in New Orleans and provide precise engineering specifications for structural elements of lock infrastructure, with multiple view perspectives including plans, elevations, sections, and detailed mechanical component drawings.