National Flood Hazard Layer for New Mexico

National Flood Hazard Layer data for New Mexico incorporates Digital Flood Insurance Rate Map databases and Letters of Map Revision published by FEMA. The data delineates primary flood risk classifications, including the 1-percent-annual-chance and 0.2-percent-annual-chance flood events. It is derived from Flood Insurance Studies, published Flood Insurance Rate Maps, and new mapping data.

Use Cases

• Identify properties within the 1-percent-annual-chance flood event zone for insurance and land-use planning.
• Analyze spatial patterns of the 0.2-percent-annual-chance flood event to assess extreme flood risk.
• Cross-reference flood hazard zones with the Coastal Barrier Resources System layer for environmental protection studies.
• Map the Floodway and Special Flood Hazard Area (SFHA) boundaries for infrastructure development and emergency response planning.

Strengths

• Data is derived from authoritative FEMA Flood Insurance Studies and Rate Maps.
• Horizontal control specifications support mapping at a detailed scale of 1:12,000.
• Includes multiple flood risk classifications such as the 1-percent and 0.2-percent annual chance events.

Limitations

• The dataset's last update was in December 2020, potentially missing recent flood map revisions.
• Specific row counts, column structures, and sample data are unavailable for assessing volume and granularity.
• Focus on New Mexico may limit applicability for analyses requiring national or multi-state coverage.

Provenance

Source

Federal Emergency Management Agency (FEMA).

Collection Method

Derived from Digital Flood Insurance Rate Map databases, Flood Insurance Studies, and Letters of Map Revision.

Freshness

Last updated 2020-12-02.

Geography

New Mexico, United States.