John Hall, a spokesman for the Army Corps of Engineers, said last night that the corps and other agencies were "in a great frenzy" to figure out how to plug the 300-foot gap along the 17th Street Canal.The narrow canal, which is used to drain water pumped out of the eternally soggy city, is not accessible by barge, in part because a newly built low bridge and hurricane barrier sits 700 feet down the canal toward the lake end. "We can't get at it," Mr. Hall said.
Engineering challenges...