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. 

Lower Neosho Custom (Allen, Cherokee, Crawford, Labette, Neosho & Woodson Counties)


The Lower Neosho Custom Watershed Floodplain Mapping update project kicked off on November 19, 2019. Enhanced data development is anticipated to begin in January 2021 for the areas that will undergo a regulatory update. Maps of the planned regulatory update areas are shown below. This website will be updated with relevant content as the project moves forward.


Watershed Discovery Information

Lower Neosho Discovery Presentation - 4-24-2020

Lower Neosho Custom Watershed Kickoff / Initial Map Review 11-19-2019

Lower Neosho Kickoff Meeting Handout - Chanute

Lower Neosho Kickoff Meeting Handout - Parsons

Lower Neosho Kickoff Notes - Chanute 11-19-2019

Lower Neosho Kickoff Notes - Parsons 11-19-2019

Community Maps - Initial Map Review


Allen County
Allen County Scoping Map

Cherokee County
Cherokee County Scoping Map

Crawford County
Crawford County Scoping Map

Labette County
Labette County Scoping Map

Neosho County
Neosho County Scoping Map

Woodson County
Woodson 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)