FLOOD09746

• County: Statewide
• Basin: Statewide
• Title: Colorado Statewide Drainage Floodplain Management Criteria Manual
• Date: 8/1/2002
• Prepared By: CWCB & WRC Engineering Inc
• Floodplain - Doc Type: Educational/Technical/Reference Information

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CHAPTER 4
FLOODPLAIN
ADMINISTRATION
AND
~ELlNEATION

WECTION 3.0
FEMA MAP
REVISIONS

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COLORADO STATEWIDE
DRAINAGE AND FLOODPLAIN MANAGEMENT CRITERIA MANUAL

on the FEMA Flood Insurance Rate Map or the flood insurance
requirements.

3.5.2

REQUEST FOR LETTER OF MAP REVISION lLOMRI

After the drainage system for the project has
been constructed, the 'as-built" plans of the
facilities should be submitted to FEMA as a
Letter of Map Revision (LOMR) request with
the supporting hydrologic, hydraulic,
geomorphologic, and other data necessary to
reflect effects of the floodplain modifications.
The request for LOMR is submitted based on
the effects of physical changes that have
occurred in the floodplain or on the use of
altemative methodologies that are technically
superior.

The request for
LOMR is submitted
based on the effects
of physical changes
that have occurred in
the floodplain or on
the use of alternative
methodologies that
are technically
superior.

The procedures for a LOMR review are similar to those for a CLOMR review.
The specific requirements are outlined in the FEMA certification forms MT-2
and the FEMA publications referenced in Section 3.1. A copy of these
procedures can be obtained from the local Floodplain Administrator or FEMA
website.

The LOMR request can be submitted to FEMA without obtaining a CLOMR in
advance for the project. However, for complex projects, it is recommended
that the applicant submit and obtain a CLOMR prior to construction since that
process will allow FEMA to review the proposed floodplain modifications and
make comments to the requester, if necessary.

AUGUST 2002

FEMA MAP REVISIONS

CH4-309