Discuss the below in detail:
Q. A contractor was building a highway underpass in an urban area. The contract states that she was to maintain traffic and to maintain and relocate all utilities. She encountered an old sewer that was not shown on the plans or mentioned in the specifications.
(a) Is maintenance and relocation of this sewer her responsibility even though she had visited the site before bidding, as required by the specifications?
(b) Can she properly claim extra compensation for this work? Explain.