FEMA Related Content

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Letters of Map Revision and Conditional Letters of Map Revision

A LOMR is a letter from FEMA officially revising the current NFIP map to show changes to floodplains, regulatory floodways, or flood elevations. Reference Code of Federal Regulations Title 44 Parts 60, 65, and 72.  A community or individual can request a LOMR to update the following:

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Instructions for Form 6 - Alluvial Fan Flooding

This form should be used for revision requests involving alluvial fan flooding. 

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Instructions for Form 5 - Coastal Structures

Use this form to request a revision to coastal flood hazard elevations and/or areas based on coastal structures being credited

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Instructions for Form 4 - Coastal Analysis

This form is intended to document the steps taken by the requester in the process of preparing the revised models or analyses a

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Instructions for Form 3 - Riverine Structures

This form should be used for revision requests that involve new or proposed channelization, bridges/culverts, dams/detention ba

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Instructions for Form 2 - Riverine Hydrology and Hydraulics

This form should be used for revision requests that involve new or revised hydrologic and/or hydraulic analyses of rivers, stre

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Instructions for Form 1 - Overview and Concurrence

This form is submitted to FEMA to assess the nature and complexity of the proposed revision.

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