Panama Canal control and American industrial mobilisation

Would the United States still be able to build up rapidly if an enemy controlled the Panama Canal?

The desire to mobilise would remain, but moving East Coast industry to the West Coast by sea would be slower and easier to obstruct without secure canal access.

The United States would still want to build naval power rapidly after an attack, but the question is how quickly it could shift the necessary industrial base westward. Much of the machinery and plant would move by sea from the East Coast to the West Coast. An opponent controlling the Panama Canal could impose charges, restrictions, and delays even without preventing every transit. Canal control therefore affects fleet movement and the geography and tempo of industrial mobilisation.