Floodplain Development Permit Information

What Counts as "Development"?

In a floodplain, this term has a very broad definition.  Examples of typical types of “development” in a floodplain include:

  • Structural projects – new structures, additions, demolitions, repairs, bridges, fences, and retaining walls
  • Electrical, plumbing and mechanical projects – replacing or installing electrical wiring, heat pumps, irrigation pumps, furnaces, water heaters, wood stoves, etc.
  • Remodeling projects – hanging drywall, replacing or installing windows, flooring, and roofs
  • Ground disturbing projects – filling, excavating, or grading your property
  • Riparian projects – stream restoration and habitat enhancement

Some of the projects listed above may not require a separate building permit or land use approval but they all require a Floodplain Development Permit.  If someone else will be doing the project for you, remind them to get floodplain development approval first.

Why is a Floodplain Development Permit Required?

As part of Benton County’s participation in the Community Rating System, the county is required to maintain records of all development activity approved in the floodplain.  These records are kept in the form of Floodplain Development Permits.  They document the county’s commitment to responsible floodplain management and help ensure county property owners continue receiving flood insurance at a discounted rate.

Where Can I Get an Application Form?

The application form is available in the Supporting Documents section below and at the Benton County Community Development office. There is also a link below to a set of step-by-step instructions detailing how to determine whether or not your project is located in a floodplain and how to fill out the Floodplain Development Permit form.

For more information, contact the Floodplain Manager at 541-766-6819