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 Arkansas (Barber, Harper, Kingman, Pratt & Sumner Counties)


The Lower Arkansas Floodplain Mapping update project kicked off on March 5 & 6, 2019, and Discovery meetings were held on February 26 & 27, 2020. Data development began in April 2020 for Barber, Harper, Kingman, Pratt and Sumner Counties.  This website will be updated with relevant content as the project moves forward.


Barber County:


Barber County Project Web Map

Barber County Contact Information

Barber County CCO Meeting Presentation 7-27-2022

Barber County Flood Risk Review Presentation 10-13-2021

Barber County Kickoff Meeting Handout 3-6-2019 - Scroll down to the Pratt and Harper County sections to see kickoff presentations delivered at those meetings with content relating to Barber County.

Barber County Proposed Project Study Map


Harper County:


Harper County Project Web Map

Harper County Contact Information

Harper County CCO Presentation 7-27-2022

Harper County Flood Risk Review Presentation 10-12-2021

Harper County Kickoff Meeting Presentation 3-5-2019

Harper County Kickoff Meeting Handout 3-5-2019

Harper County Proposed Project Study Map


Kingman County:


Kingman County Kickoff Meeting Presentation 3-6-2019

Kingman County Kickoff Meeting Handout 3-6-2019

Kingman County Proposed Modeling Map



Pratt County:


Pratt County Kickoff Meeting Presentation 3-6-2019

Pratt County Kickoff Meeting Handout 3-6-2019

Pratt County Proposed Modeling Map



Sumner County:


Sumner County Kickoff Meeting Presentation 3-5-2019

Sumner County Kickoff Meeting Handout 3-5-2019

Sumner County Proposed Project Study Map



Watershed-wide:


There were four Discovery meetings held over the course of February 26 & 27. The meetings were held in Mulvane, Medicine Lodge, Pratt and Kingman.

Lower Arkansas Discovery Meeting - Feb. 2020

Lower Arkansas (Mulvane) Notes 2-26-2020

Lower Arkansas (Medicine Lodge) Notes 2-26-2020

Lower Arkansas (Pratt) Notes 2-27-2020

Lower Arkansas (Kingman) Notes 2-27-2020

Lower Arkansas Project Area


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_Custom_Sheds_3-8-2024