Conditional Letter of Map Revision Information

What is a CLOMR

A Conditional Letter of Map Revision, or CLOMR, is FEMA’s comment on a proposed project that would affect the hydrologic or hydraulic characteristics of a flooding source.

A CLOMR does not revise the current National Flood Insurance Program map (NFIP). It just outlines whether the project, if built as proposed, would be recognized by FEMA.

Building permits cannot be issued based on a CLOMR, because a CLOMR does not change the NFIP map.

Once a project has been completed, the community must request a revision to the Flood Insurance Rate Map (FIRM) to reflect the project. “As-built” certification and other data must be submitted to support the revision request.

Does this affect my flood insurance?

No, not yet. The FM Area Diversion Project is a federal project that will provide certifiable flood protection for hundreds of thousands of people in the Fargo and Moorhead area.

The Project is being designed to prevent impacts from a 100-year flood event. Once built, it will remove the mandatory requirement of having flood insurance for thousands of people, once the Project is complete and FEMA agrees that flood protection is certified.

Receiving a CLOMR is the first step in certifying property is protected from a 100- year event.

What happens after a CLOMR?

The FM Area Diversion Project started construction in March of 2017. It is estimated to be operational in 2026. Once it’s ready to operate, the Flood Diversion Board of Authority will ask FEMA to look at their flood map and lift the insurance requirement because the Project provides certifiable protection. The requirement can be lifted with a Letter of Map Revision or LOMR.

Community Concurrence Documents

NOTIFICATION & MAP
ADDITIONAL LETTER & MAP

Diversion Inlet

Channel

Bridge Channel

Appendix K-Levee Freeboard Profiles

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