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Levee Alterations Program

Program Overview

The risk of flooding in portions of the City of Des Moines is reduced by the Downtown Levee Local Flood Risk Management system, which consists of a series of levees and floodwalls along the Des Moines and Racoon Rivers. Following the 2008 Midwest flood, the Army Corps of Engineers (USACE) conducted a study to estimate the frequency and magnitude of river flows. Based on the results, it was found that the current system does not provide reliable risk reduction against a 100-year flood, thus affecting the system’s accreditation status by FEMA and impacting the City’s flood hazard mapping. The Des Moines Levee Alterations Program has been undertaken by the City to address the identified system deficiencies.

Goal of Program

The City plans to address these deficiencies by implementing a series of projects along the levee systems. These projects include levee raises, modification of gatewell and closure structures, embankment protection installation, pump station improvements and levee stability mitigating measures. The projects will be constructed in multiple phases (phases A through H) with a goal to have the projects completed by the summer of 2026.

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Developer
Stantec
City Project Manager
Craig Bouska, P.E.
Civil Engineer
Email
cmbouska@dmgov.org
Phone
(515) 208-4580

When and where will the work take place?

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