Home > FAQs > How far upstream and downstream will the levees be affected and what kind of mitigation will be used? How do changes to the East Bank affect the West Bank, and what kind of mitigation will be used?
Hydrodynamic modeling has not yet been conducted. However, it is expected from previous modeling that the intake structures would not materially impact the water levels in the river during high flows. The project may reduce water levels at some time periods. Water level impacts are expected to be below the USACE threshold for action. Therefore, levee improvements for water level impacts upstream of the structures would not be expected to be necessary. Hydrodynamic modeling is also planned to be conducted to evaluate more localized erosive conditions, which could lead to the need for slope protection on some locations along the levees. Those impacts are expected to be limited to a few hundred feet or less upstream and downstream of the intake sheet pile training walls.