Floodplain Mapping Projects

FEMA has available several services for different phases of a mapping project. Preliminary, Pending and Effective products can be downloaded on from the Map Service Center. FEMA also maintains several map viewers:

National Flood Hazard Layer - displays the effective digital data
> Flood Map Changes Viewer  - includes the Preliminary and Pending digital map data, with a Changes Since Last FIRM layer that compares the Preliminary/Pending data with the effective data


KDA maintains project-specific map viewers for active projects that are based on the same digital data. The web links are included on the project pages below. 

Osage Custom (Bourbon & Linn Counties)


The Osage Custom Watershed Floodplain Mapping update project kicked off on October 22, 2019. Enhanced data development is anticipated to begin in January 2021 for the areas that will undergo a regulatory update.  This website will be updated with relevant content as the project moves forward.


Watershed Discovery Information

Osage Discovery Presentation - Paola 2-5-2020

Osage Discovery Presentation - Mound City 2-5-2020

Paola - Osage Discovery Meeting Notes 2-5-2020

Mound City - Osage Discovery Meeting Notes - 2-5-2020

Osage Custom Watershed Kickoff / Initial Map Review 10-22-2019

Osage Kickoff Meeting Handout - Paola

Osage Kickoff Meeting Handout - Fort Scott

Paola - Osage Kickoff Initial Map Review Meeting Notes 10-22-2019

Fort Scott - Osage Kickoff Initial Map Review Meeting Notes 10-22-2019

County Maps - Initial Map Review


Bourbon County

Bourbon County Scoping Map

Linn County

Linn County Scoping Map



Unsure which watershed you are in?  Use the following link to find out.
Kansas HUC 8 Watershed Map

Or reference the map below for Custom Watershed project areas.

Project Reference Map

Use this page to find relevant information on floodplain mapping projects.  Click on the map below to view current or proposed floodplain mapping projects.  Use the Kansas Floodplain Map Viewer for current effective floodplains.

Project Status Map (updated December 4, 2020)