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Iowa DNR Customer Service
Mon - Fri, 8:00am - 4:30pm CST
Submit Online Inquiry
Information / Records Requests
Contact Information by County
Technical Assistance: 866/849-0321
Do You Need a Flood Plain Development Permit?
If you believe your project does not need a flood plain development permit, you can submit information to the DNR and receive written confirmation about whether a permit is needed. Simply follow these steps.
Step One: Permit Determination Checklist
Choose your project type from the chart below, then complete the forms associated with that project to determine if you need a floodplain development permit.
Step Two: Complete the Joint Application
If you have determined a floodplain development permit is not needed, you still need to apply for a sovereign lands permit and U.S. Army Corps of Engineers permit through the joint application form. Once this form is complete, attach the determination forms from Step One above to the joint application form and send three copies (two to the DNR and one to the Army Corp. Addresses are listed in the joint application form.)
Joint Application Form (Required for every project)
Step Three: Questions?
If you are still unsure about whether or not you need a permit, simply call the floodplain permit technical assistance telephone number: 866/849-0321.
** Pre Application Form Needed
++ Using riprap or broken concrete for streambank stabilization, with no resulting restriction of the stream cross section.