FEMA Preliminary Flood Maps (FIRMs)

We will post updates to this webpage as information becomes available.

TIMELINE UPDATE 2/5/19: The new preliminary maps became effective February 1, 2019. The City of Urbandale has taken steps to adopt these updated maps as well as update our existing floodplain development regulations in order to continue participating in the National Flood Insurance Program (NFIP).

Preliminary Flood Maps: Over the past few years, the Federal Emergency Management Agency (FEMA) has been refining, updating, and digitizing flood plain maps nationwide, culminating in the creation of new preliminary Flood Insurance Rate Maps for the City of Urbandale based on the most recent data. In February 2016, FEMA published a Public Notice for these preliminary maps, which started a period of review and appeal. That process is now completed, and the new maps became effective on February 1, 2019.

Informational Meeting: To help the public understand the changes in the preliminary maps and the options available to you as a property owner, the City of Urbandale hosted a public meeting on February 18, 2016. The presentation is available here: http://www.urbandale.org/DocumentCenter/View/3121 (see above for latest timeline information).

Web MapTo assist you in understanding your flood risk, the City has developed a web map to view the new preliminary maps at https://maps.urbandale.org/fema/. The webmap has a number of features to help you understand the flood plain maps and apply for a LOMA-OAS.

  • LAYERS: Click the button in the upper right that looks like a stack of paper to select layers: the "Flood Hazard Area February 2019" in blue is the new maps for 2019. Turn on the "FEMA Services - LOMC" to view previously issued LOMAs for the City. See below for more info on existing LOMCs.
  • BACKGROUND: Click the button that looks like a window to select a map background or an aerial background.
  • PRINT: Click the "print" button in the upper right to generate a PDF of your map view.
  • COORDINATES: Click the cross-hairs in the lower left, then click the location of your property. The coordinate read-out will be the lat/long of the location. You will need to click the cross-hairs again to disable the coordinate tool.

LOMCsIf you currently have an effective Letters of Map Change (LOMC), such as a Letter of Map Amendment (LOMA) or a Letter of Map Revision (LOMR), you may view these on the above web map. LOMCs listed as "Not Incorporated" have been revalidated free-of-charge now that the revised maps have become effective. LOMCs listed as Superseded are longer in valid under the the maps, and a new LOMA will need to be obtained. If you have a LOMC that is not shown on our web map, please contact our office. View the full list of revalidated LOMCs here: LOMC Revalidation 2019-02-01

LOMA-OASFor properties where the 100-year flood area touches the parcel but the building structure is clearly outside this area, the property owner may request a "Letter of Map Amendment – Out as Shown" (LOMA-OAS). PLEASE NOTE: THERE IS NO DEADLINE FOR APPLYING FOR THE LOMA-OAS. Property owners may complete this process at anytime. For the new maps, see updated directions below for creating a FIRMette.

To apply for a LOMA-OAS, you need the following items:

  • STEP 1a - INSTRUCTIONS for filling out Application: Instructions for LOMA-OAS
  • STEP 1b - APPLICATION: The LOMA-OAS application uses the MT-EZ form - but DO NOT follow the instructions in this form, follow the instructions in the LOMA-OAS link above. You will also need info from the items below to complete this form. MT_EZ_ApplicationOnly.pdf
ADDITIONAL INFO FOR APPLICATION FORM: 
  • The "Community Number" is 190230.
  • The Map Panel is the last four digits of the "FEMA FIRM Panels" on the wembap layer.
  • The Coordinates are WGS84 and can be found from our FEMA webmap (see below) or Google Maps.
  • in Section A, Question 2, put your Legal Description and Street Address.
  • STEP 2- PLAT: Guide to Download Plat from the County Recorders' websites. Make sure that the document you send to FEMA has the Recorder's stamp with book and page.
  • STEP 3 - WEBMAP: On our https://maps.urbandale.org/fema webmap, turn on "Flood Hazard Area Effective February 2019", Parcel Boundaries, and Aerial Background (see screenshot in Step 2 guide), then click the print button in the upper right corner to create PDF of your property.
  • STEP 4 - FIRMette: Guide to Create a FIRMette.  The FIRMette app has been updated and is easier to use.
  • Please contact at our office at 278-3950 or stormwater@urbandale.org if you need assistance with FIRMs or other information. Please include your address

Additional Resources: 

  1. Engineering


    Physical Address
    3600 86th Street
    Urbandale, IA 50322

    Phone: 515-278-3950


  2. Public Works

    Physical Address
    9401 Hickman Road
    Urbandale, IA 50322

    Phone: 515-278-3950