Special reinforcement would also be needed, she said, to support its great weight, delaying construction.
The decision is expected to delay construction of the $300 million station for at least a year and a half.
This appears to have delayed construction, but the building was finally completed in 1857.
The strike delayed construction, but by the end of May 1905, a full workforce was in place.
The decision could delay construction of a plant by years as the city casts about for a new location.
It would also delay construction of a vital water storage system for at least a decade.
Workers at the time covered the ship over again so as not to delay construction.
Several factors delayed construction of the dam during this period.
The brutal winter of 1993-94 delayed construction because the ground was frozen.
It is scheduled to be ready for the 2004 season, although the dispute over the site may delay construction.