Floodplain Management

Maps of Floodplains

Maps of Floodplains

Floodplain maps provide the basis for floodplain management, regulation, and insurance requirements by identifying flood-prone areas that may threaten life and property. Floodplain maps are reviewed and approved by FEMA. Once approved, the floodplain maps guide flood management programs, including floodplain regulation, safety, preservation, preparation and mitigation.

Use the interactive Map of Floodplains (Interactive) to see if your property is in a floodplain.

The City of Leon Valley:

  • Provides information from the FIRM needed to write a flood insurance policy. Please click the following links to view the most recent and appropriate FIRM.

  • The map information service is able to locate a property based on a street address.

  • The City of Leon Valley will voluntarily provide this mapping information when an inquiry is made about a property located in the Special Flood Hazard Area, and about the mandatory flood insurance purchase requirement. The City will also voluntarily provide any information related to historical flooding with respect to the Privacy Act Flood insurance data.

    General or aggregated information, such as total claims paid for a community or an area or data not connected to a particular property may be made available.

  • All inquiries will be responded to within 10 days of the receipt of the request.

  • The map information service is publicized at least once a year in the city of Leon Valley’s newsletter mailing, The Lion’s Roar.

  • The maps used for inquiries are kept updated at least annually to reflect new studies, subdivisions, flood insurance restudies, map revisions, and map amendments (including Letters of Map Amendment (LOMAs) and Letters of Map Map Information Service CRS Coordinator’s Manual 320-5 Edition: 2013 Revision (LOMRs).

  • The community maintains copies of earlier FIRMs that have been in effect since 1999.

  • Records of the map inquiry service is kept and in the Community Development Department

To have city staff look up your floodplain information, fill out the Floodplain Information Request form and either fax it to 210-509-8288 or drop it off in-person at the Community Development Department City Hall at 6400 El Verde.

You can also get a Public Flood Map or a Flood Insurance Rate Map from the FEMA Map Service Center.

Floodplain Map Changes

Flood maps are periodically updated and revised to reflect changing conditions, such as impacts of flooding, new topography, land development, updated mapping studies, and construction of floodplain improvements.

Floodplain map changes can take several forms:

  • Local Map Changes
  • Flood Insurance Rate Maps (FIRMs) or Digital Flood Insurance Rate Maps (DFRIMs)
  • Letters of Map Change (LOMCs)
  • Conditional Letters of Map Amendment (CLOMAs)

Changes to the Flood Map

Letter of Map Amendment (LOMA) Process

Grandfather Provisions

Preferred Risk Policies