I-Wall versus Superior T-Wall
This file appears in: 17th Street Canal Levee Breach in 2005
Post Katrina, the repaired breach site of the 17th Street Canal consists of a new flood wall in the T-wall design rather than I-wall design. A T-wall is a reinforced concrete structure supported by foundation pilings with a non-structural steel sheet pile assembly beneath the levee. T-walls are not typically earth supported, are a significantly sturdier design, and are also three or more times more expensive to build than I-walls.
Interagency Performance Evaluation Task Force report
This file appears in: 17th Street Canal Levee Breach in 2005
17th Street Canal Levee Breach in 2005
In 1965, Hurricane Betsy demonstrated that a major hurricane could overtop the earthen levees of the 17th Street Canal. So the Army Corps of Engineers recommended two cost-effective plans which were 1) raising the height of the canal walls or 2)…