A subcontractor had a duty to alert the prime contractor to a latent, pre-existing safety hazard the sub did not create. But, the duty arose under state labor statutes, not common law or the contract.
A discrepancy between a drawing and a drawing note presented a patent ambiguity requiring a request for pre-bid clarification from the contractor. A dissenting opinion argued that the documents were not ambiguous at all and the contractor should be compensated for $1 million of extra work directed by the project owner.