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Click on Map to Zoom. 
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Relative to what National Weather Service gauge location:
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Missouri River at Nebraska City and Nishnabotna River at Hamburg.
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Background:
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Levee was overtopped/breached on or before 19 Mar 2019. There are 7 breaches identified in the L575 levee system (see map).
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Current actions:
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Initial closure at breach L575_A_I to return river to the channel. L575_A_I contract awarded 14 Apr 2019, expected completion 14 Jun 2019. Initial closure at breach L575_B_I to return river to the channel. L575_B_I contract awarded 19 Apr 2019, expected completion 19 June 2019.
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Cost:
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L575_A_I $7.5 million and L575_B_I $12 million
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Contractor:
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L575_A_I Western Contracting Corp., Sioux City, Iowa; L575_B_I Newt Maritime Services, Dubuque, Iowa.
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Risk to normal Spring Runoff operations?
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Yes
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Risk to elevated Spring Runoff operations?
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Yes
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Next Steps:
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1. When river returns to channel and levees are accessible, conduct physical damage assessment.
2. Design and construct levee restoration to authorized level of flood risk reduction.
3. Design and construct levee restoration to authorized level of risk reduction.
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