Active Levee Projects

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Levee Railroad Flood Gate Closure Rehabilitation (Structural MR_1)

Underway

The project rehabilitated the existing Union Pacific Railroad flood gate closure. New mechanical features were installed and the flood gate was repainted. The damaged sill of the closure was repaired.

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Levee Underseepage Control Improvement (Geotechnical MR_7)

Underway

The project replaced existing levee underseepage control features. Seven new relief wells were installed to replace seven original relief wells. A stability and seepage sand berm was installed to supplement the relief wells. The sand berm was constructed utilizing existing sand berm material on-site placed during the 2011 flood.

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Levee Underseepage Control Improvement (Geotechnical MR_2)

Underway

The project modified the existing relief well system by retrofitting the system with a buried discharge pipe system to collect flow from the relief wells. A groundwater sump was constructed to collect and allow form pumping of flow collected from the relief wells.

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Completed Levee Projects

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Levee Structural Improvement and Encroachment Removal (Structural MR_2)

Completed in 2016

The project removed an aged floodwall and replaced with earthen levee embankment. The project also removed old water infrastructure that was encroaching the levee system.

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Levee Underseepage Control Improvement (Geotechnical MR_1)

Completed in 2016

The project replaced existing levee underseepage control features. Twenty one original relief wells were replaced with a pervious toe trench with collector pipe system. The pervious toe trench is supplemented with a sand berm. The sand berm was partially constructed utilizing existing sand berm material on-site placed during the 2011 flood.

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