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 Smoky Hill BLE


The Lower Smoky Hill Watershed Floodplain Mapping project will produced Base Level Engineering (BLE) floodplains for portions of the following counties located in the watershed: Geary County, Clay County, Ottawa County, Dickinson County, Saline County, Ellsworth County, Rice County, McPherson County, Marion County, and Morris County. The project web page will be updated as the project moves forward and will indicate if any counties are planned to go forward into regulatory updates.

Lower Smoky Hill Custom Water BLE Kickoff Meeting - 3/29/2024

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