A21 - Encl-05_702-D170-01-0_ALTERNATE BLOCKING_marked up.pdf

This appears to be a technical engineering drawing or diagram showing alternate blocking arrangements for what seems to be a shipyard or dry dock facility. The drawing shows numbered sections (39-33) with alternating block patterns indicated in red hatching and blue cross-hatching. There is a 20" overflow P/S noted at the top of the diagram, and the blocks are specifically labeled as "ALTERNATE BLOCKS" in the drawing. This appears to be an enclosure (Encl-05) supporting the larger solicitation for Murden Shipyard Repair Services, likely providing technical specifications for how the ship should be supported during dry dock repairs.

The drawing appears to be part of the technical requirements package that would inform contractors about specific dry dock blocking arrangements needed for the Dredge Murden maintenance work described in the main solicitation. This level of technical detail would be important for shipyards to properly bid on the 90-day dry dock repair services being solicited.