Were Lexington and the 1920 South Dakota class reaching the limits of US dockyards?
Short answerYes, especially in support capacity, although the United States planned to build additional facilities.
NotesLexington and the 1920 South Dakota class approached the dimensions that existing American dry docks and support facilities could handle. Building the hull does not solve the problem because fleets need suitable maintenance and repair capacity on the coast where the ship will operate. The United States planned to add facilities and possessed the industrial power to do so. That dockyard expansion nevertheless belongs in the true cost and schedule of the capital-ship program.