Flood Information

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Walnut Creek, North Walnut Creek, and Little Walnut Creek are central to the City of Clive and make the City unique. These waterways are prone to flash floods and urban street flooding. Flooding is a natural process and inevitable. Click here for the Be Flood Ready brochure.

The Polk County Multi-Jurisdictional Hazard Mitigation Plan was developed to help reduce losses within the county from many types of hazards, including floods. The plan is a federal requirement for those jurisdictions wishing to be eligible for FEMA Hazard Mitigation Grant Programs. The City of Clive participated in the development of the plan and adopted it formally in 2014. Please click here to be directed to the Polk County Emergency Management website which has the current document available for review. 

On March 25, 2019, the City of Clive hosted a meeting to provide residents with information on flood risk, preparing for a flood and what to do during a flooding event. Click here to access the presentation materials.

Clive addresses flooding in several ways. 

Knowledge. Our knowledgeable city staff can help you understand your flood hazard. We have historic data and access to real-time gauges to help you make decisions. Click here for Knowing Your Flood Hazard.

Flood Insurance. Whether you rent or own property, flood insurance is an important part of living at a property with a flood designation. Click here for Insuring Your Property for Your Flood Hazard.

Protecting people. The City has a Flood Response Protocol and Sandbag and Evacuation Sites for use before, during, and after flood events. We also have a warning system in place to help keep the community safe. Click here to learn about Protecting People.

Protecting property. In addition to our Flood Response Protocol and Sandbag and Evacuation Sites, we also encourage best practices to manage urban stormwater runoff and recovering from flood events and preventing damage through construction. Click here learn about Protecting Property.

Build responsibly. The City provides Flood Plain Development Applications to ensure that multiple options are considered before decisions are made. We also maintain FEMA flood map updates and elevation certificates. Click here to learn how to Build Responsibly.

Protect natural floodplain function. Clive was the first city to adopt the Walnut Creek Watershed Master Plan. To learn more about the our support of Natural Floodplain Function, click here.

Flood Warning System. The City of Clive works in partnership with other communities (Des Moines, Urbandale, and West Des Moines) and the National Weather Service (NWS) to operate an Automated Flood Warning System for Walnut Creek.  The system of telemetered rain gauges, river gauges, and receivers is operated jointly by NWS and the City of Des Moines. 

The system provides constant real time access to flooding threat events along Walnut Creek and North Walnut Creek.  The automated system provides alert information to key city personnel based on pre-defined threat levels as identified in the City’s Flood Response and Recovery Plan.   Based on the USGS gauge at I-35/80, the NWS provides predictive information regarding anticipated timing and crest.

Additionally, Clive has 4 gauges with real-time information at the Iowa Flood Information System. Click here to  access the IFIS website; an instructional video is available on the home page.

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