**INSTRUCTIONS FOR COMPLETING THE APPLICATION FORMS FOR**

**CONDITIONAL LETTERS OF MAP REVISION AND LETTERS OF MAP REVISION**

### GENERAL

In 1968, the U.S. Congress passed the National Flood Insurance Act,
which created the National Flood Insurance Program (NFIP). The NFIP was
designed to reduce future flood losses through local floodplain
management and to provide protection for property owners against
potential losses through flood insurance.

As part of the agreement for making flood insurance available in a
community, the NFIP requires the participating community to adopt
floodplain management ordinances containing certain minimum requirements
intended to reduce future flood losses. The NFIP regulations for
floodplain management are the minimum criteria a community must adopt
for participation in the NFIP. The community is responsible for
approving all proposed floodplain development and for ensuring that
permits required by Federal or State law have been received. State and
community officials, based on knowledge of local conditions and in the
interest of safety, may set higher standards for construction or may
limit development in floodplain areas. If the State or Community has
adopted more restrictive or comprehensive floodplain management
criteria, those criteria take precedence over the minimum NFIP
requirements.

The community is also responsible for submitting data to the Federal
Emergency Management Agency (FEMA) reflecting revised flood hazard
information so that NFIP maps can be revised as appropriate. This will
allow risk premium rates and floodplain management requirements to be
based on current data.

Submissions to FEMA for revisions to effective Flood Insurance Studies
(FISs), Flood Insurance Rate Maps (FIRMs), or Flood Boundary Floodway
Maps (FBFMs) by individual and community requesters will require the
signing of application forms. These forms will provide FEMA with
assurance that all pertinent data relating to the revision are included
in the submittal. They will also ensure that: (a) the data and
methodology are based on current conditions; (b) qualified professionals
have assembled data and performed all necessary computations; and (c)
all individuals and organizations affected by proposed changes are aware
of the changes and will have an opportunity to comment on them.

If the submission involves revisions to multiple flooding sources, then
separate forms should be completed for each flooding source.

NFIP regulations can be accessed at
<http://www.access.gpo.gov/nara/cfr/waisidx_02/44cfrv1_02.html> or can
be obtained by calling FEMA's Map Assistance Center at 1‑877‑FEMA MAP
(1‑877‑336‑2627). FEMA's Internet site at
<http://www.fema.gov/plan/prevent/fhm/frm_form.shtm> provides access to
the forms and latest fees and revision procedures. FEMA is preparing
online tutorials to assist users of the NFIP maps. The tutorials for
revisions to the NFIP maps are currently being prepared and will be
available soon. Other online tutorials are available at
<http://www.fema.gov/plan/prevent/fhm/ot_main.shtm>.

## When to Use These Forms

This package is applicable for requests of the following:

Conditional Letter of Map A letter from FEMA commenting on whether a
proposed

Revision (CLOMR) project, if built as proposed, would meet minimum NFIP

> standards or proposed hydrology changes \[see 44 Code
>
> of Federal Regulations (CFR) Ch. 1, Parts 60, 65, and 72\].

Letter of Map Revision A letter from FEMA officially revising the
current NFIP map

(LOMR) to show changes to floodplains, floodways, or flood

> elevations (see 44 CFR Ch. 1, Parts 60, 65, and 72).

#### When Not to Use These Forms

This package is not applicable for requests of the following:

> Letter of Map Amendment A letter from FEMA stating that an
> **existing** structure or
>
> (LOMA) parcel of land that has not been elevated by fill (**natural
> ground**) would not be inundated by the base flood.

Conditional Letter of A letter from FEMA stating that a **proposed**
structure that is

Map Amendment (CLOMA) not to be elevated by fill (**natural ground**)
would not be

> inundated by the base flood if built as proposed.
>
> Letter of Map Revision A letter from FEMA stating that an **existing**
> structure
>
> Based on Fill (LOMR-F) or parcel of land that has been **elevated by
> fill** would not be inundated by the base flood.

Conditional Letter of Map A letter from FEMA stating that a parcel of
land or **proposed**

Revision Based on Fill structure that will be **elevated by fill** would
not be inundated

(CLOMR-F) by the base flood if fill is placed on the parcel as proposed
or

> the structure is built as proposed.

For these requests, either the MT-EZ form package titled *Amendments to
National Flood Insurance Program Maps, Application Form for Single
Residential Lot or Structures,* or the MT-1 form package titled
*Amendments and Revisions to National Flood Insurance Program Maps,
Application Forms and Instructions for Letters of Map Amendment,
Conditional Letters of Map Amendment, Letters of Map Revision Based on
Fill, and Conditional Letters of Map Revision Based on Fill* are
appropriate. The MT-EZ forms are used for single structure or lot
requests that do not involve the placement of fill. The MT-1 forms are
used for requests involving multiple structures or lots. The MT-EZ form
package may be downloaded from FEMA's Internet site at
<http://www.fema.gov/plan/prevent/fhm/dl_mt-ez.shtm>, and the MT-1 form
package may be downloaded from FEMA's Internet site at
<http://www.fema.gov/plan/prevent/fhm/dl_mt-1.shtm>. Either form package
may also be obtained by calling FEMA's Map Assistance Center at
1‑877‑FEMA MAP (1‑877‑336‑2627).

#### Summary of Forms

Application forms for requesting a revision from FEMA are included in
the back of this package. There are six forms plus a payment form in
this package, which cover various situations for revisions. When
submitting a request only the forms applicable to the request need to be
submitted. The following is a list of the forms and a brief summary of
when each is applicable.

Form 1 - Overview & Concurrence Form provides the basic information
regarding the revision request and requires the signatures of the
requester, community official, and engineer. This form is required for
all revision requests.

> Form 2 - Riverine Hydrology & Hydraulics Form provides the basic
> information on the scope and methodology of hydrologic and/or
> hydraulic analyses that are prepared in support of the revision
> request. This form should be used for revision requests that involve
> new or revised hydrologic and/or hydraulic analyses of rivers,
> streams, ponds, or small lakes.

Form 3 - Riverine Structures Form provides the basic information
regarding hydraulic structures constructed in the stream channel or
floodplain. This form should be used for revision requests that involve
new or proposed channelization, bridges/culverts, dams, and/or
levees/floodwalls.

Form 4 - Coastal Analysis Form provides the basic information on the
scope and methodology of coastal analyses that are prepared in support
of the revision request. This form should be used for any revision
requests that involve new or revised coastal analyses.

Form 5 - Coastal Structures Form provides the basic information
regarding hydraulic structures constructed along the coast. This form
should be used for revision requests that involve new or proposed
levees/dikes, breakwaters, bulkheads, seawalls, and/or revetments
located along the coast.

Form 6 - Alluvial Fan Flooding Form provides the basic information for
analyses of alluvial fans. This form should be used for revision
requests involving alluvial fans.

Payment Information Form - Provides the basic information regarding any
fees paid for a CLOMR, LOMR, or External Data Request.

#### Fees

FEMA has implemented a procedure to recover costs associated with
reviewing and processing requests for modifications to published flood
information and maps. The current fees for review and processing of
CLOMR and LOMR requests may be obtained from FEMA's Internet site at
<http://www.fema.gov/plan/prevent/fhm/frm_fees.shtm> or by calling
FEMA's Map Assistance Center at 1‑877‑FEMA MAP (1‑877‑336‑2627).

Some requests for revisions may be exempt from the fees. NFIP
Regulation, 44 CFR Ch. 1, Section 72.5, describes the circumstances for
requests to be exempt from paying the fees. The exemptions are also
described on FEMA's Internet site at
<http://www.fema.gov/plan/prevent/fhm/frm_fees.shtm>.

Payment must be made by credit card, check or money order. Checks and
money orders should be made payable in U.S. funds to the [National Flood
Insurance Program]{.underline}. Please forward payment along with a
completed Payment Information Form to the following address:

+---------------------------------+------------------------------------+
| [Using U.S. Postal              | [Using Overnight                   |
| Service:]{.underline}           | Service:]{.underline}              |
|                                 |                                    |
| Federal Emergency Management    | Revisions Fee-Collection System    |
| Agency                          | Administrator                      |
|                                 |                                    |
| Revisions Fee-Collection System | c/o Michael Baker Jr., Inc.        |
| Administrator                   |                                    |
|                                 | 3601 Eisenhower Ave                |
| P.O. Box 22787                  |                                    |
|                                 | Alexandria, VA 22304               |
| Alexandria, VA 22304            |                                    |
+---------------------------------+------------------------------------+

Please note, that the fee is to be sent to a different address than the
request package. See page 4 for where to submit the request package.

#### What to Submit

A CLOMR or LOMR request should include the application forms along with
the appropriate supporting information.  A notebook-style format is
preferred.  The submittal should include the following:

1.  Completed application forms.

2.  Narrative on project and submittal (optional but very helpful).
    Knowing the project and purpose of the request better ensures the
    needs of the requester are met.

3.  Hydrologic Computations (if applicable) along with digital files of
    computer models used.

4.  Hydraulic Computations (if applicable) along with digital files of
    computer models used.

5.  Certified topographic map with floodplain and floodway (if
    applicable) delineations.

6.  Annotated FEMA FIRM and/or FBFM to reflect changes due to project
    (FIRMs and /or FBFMs can be ordered on-line at
    <http://store.msc.fema.gov/>).

7.  Items required to satisfy any FEMA NFIP regulatory requirements.

Before FEMA will replace the effective FIS information with the revised,
the requester [must]{.underline}:  (a) provide [all]{.underline} of the
data used in determining the revised floodplain boundaries, flood
profiles, floodway boundaries, etc.; (b) provide [all]{.underline} data
necessary to demonstrate that the physical modifications to the
floodplain meet NFIP regulations, have been adequately designed to
withstand the impacts of the 1% annual chance flood event, and will be
adequately maintained; and (c) demonstrate that the revised information
(e.g., hydrologic and hydraulic analyses and the resulting floodplain
and floodway boundaries) is consistent with the effective FIS
information.

**Where to Submit**

The completed package should be submitted to the appropriate address
indicated below. Fees are submitted to a separate address (see \"Fees,\"
page 3).

**Mail your request to...**

FEMA Map Coordination Contractor\
3601 Eisenhower Avenue, Suite 600\
Alexandria, VA 22304-6425

**INSTRUCTIONS FOR COMPLETING THE**

**OVERVIEW & CONCURRENCE FORM**

**(FORM 1)**

This form provides the basic information regarding revision requests and
must be submitted with each request. It contains much of the material
needed for the Federal Emergency Management Agency (FEMA) to assess the
nature and complexity of the proposed revision. It will identify: (a)
the type of response expected from FEMA; (b) those elements that will
require supporting data and analyses; and (c) items needing concurrence
of others. This form will also ensure that the community is aware of the
impacts of the request and has notified affected property owners, if
required. All items must be completed accurately. If the revision
request is being submitted by an individual, firm, or other
non-community official, contact should be made with appropriate
community officials. National Flood Insurance Program (NFIP) regulation
Title 44 CFR Ch. 1, Section 65.4, requires that revisions based on new
technical data be submitted through the Chief Executive Officer (CEO) of
the community or a designated official. Should the CEO refuse to submit
such a request on behalf of another party, FEMA will agree to review it
only if written evidence is provided indicating that the CEO or designee
has been requested to do so.

**[Section A: Requested Response from FEMA]{.underline}**

Indicate the type of response being requested. Brief descriptions of
possible responses are provided in the introduction; more detail
regarding these responses and the data required to obtain each response
are provided in the NFIP regulations, Title 44 CFR Ch. 1.

**[Section B: Overview]{.underline}**

1.  The [Community Number]{.underline}, [Community Name]{.underline},
    [State]{.underline}, [Map Number]{.underline}, [Panel
    Number]{.underline}, and [Effective Date]{.underline} can be
    obtained from the Flood Insurance Rate Map (FIRM) title block. The
    sample FIRM panels (Figures 1 and 2) provide a convenient example of
    information to complete item 1.

2.  [Flooding source]{.underline} refers to a specific lake, stream,
    ocean, etc. This should match the flooding source name shown on the
    FIRM, if it has been labeled. (Examples: Lake Michigan, Duck Pond,
    or Big Hollow Creek).

3.  [Project Name/Identifier]{.underline} can be the name of a flood
    control project or other pertinent structure having an impact on the
    effective FIS, the name of a subdivision or area, or some other
    identifying phrase.

4.  The [zone designations affected]{.underline} can be obtained from
    the FIRM.

5.  a\. Indicate the basis for the revision request.

    -   [Physical Changes]{.underline} include watershed development,
        flood control structures, etc. Note that fees will be assessed
        for FEMA\'s review of proposed and \"as-built\" projects, as
        outlined in NFIP regulations 44 CFR Ch. 1, Part 72.

    -   [Improved Methodology/Data]{.underline} may be a different
        technique (model) or adjustments to models used in the effective
        FIS.

    -   [Regulatory Floodway Revisions]{.underline} involve any shift in
        the FEMA-designated floodway boundaries, regardless of whether
        the shift is mappable.

    -   [Other]{.underline} involves any basis for the request not
        including the above items.

b\. Indicate the types of flooding and structure(s) associated with the
revision request.

![](media/image1.png){width="6.3in" height="4.6125in"}

**[Section C: Review Fee]{.underline}**

Enter the fee amount associated with the request, or attach an
explanation as to why the revision meets the requirements for a fee
exemption. The current fees for review and processing of Conditional
Letter of Map Revision (CLOMR) and Letter of Map Revision (LOMR)
requests may be obtained from FEMA's Internet site at
<http://www.fema.gov/plan/prevent/fhm/frm_fees.shtm>.

**[Section D: Signature]{.underline}**

*Signature and Title of Revision Requester*

The person signing this certification should own the property involved
in the request or have legal authority to represent a
group/firm/organization or other entity in legal actions pertaining to
the NFIP.

The requester is responsible for obtaining all necessary Federal, State,
and local permits as a condition of obtaining a LOMR or CLOMR. The
community is required to make sure that all necessary permits have been
obtained prior to issuing a floodplain development permit. The most
commonly required Federal permits are wetlands permits under Section 404
of the Clean Water Act of 1972 and incidental take permits under Section
10 of the Endangered Species Act of 1972. Necessary State permits vary
depending on the State. If the requester needs a wetlands permit or is
not sure if one is required, he should contact the U.S. Army Corps of
Engineers District Office. If the requester's proposed development
impacts threatened or endangered species or if he is unsure if it does,
he should consult with the nearest U.S. Fish and Wildlife Service field
office.

*Signature and Title of Community Official*

The person signing this certification should be the CEO for the
community involved in this revision request or an official legally
designated by the CEO. If more than one community is affected by the
change, the community official from the community that is most affected
should sign the form, and letters from the other affected communities
should be enclosed. If the community or communities disagree with the
proposed revision, a signed statement should be attached to the request
explaining the reasons or basis for disagreement.

Under 44 CFR 60.3(a)(2), the community is required to ensure, prior to
issuing a floodplain development permit that an applicant has obtained
all necessary Federal and State permits related to development. The most
commonly required Federal permits are wetlands permits under Section 404
of the Clean Water Act of 1972 and incidental take permits under Section
10 of the Endangered Species Act of 1972. Necessary State permits vary
depending on the State. If the community is not sure if a wetlands
permit is required, refer the applicant to the U.S. Army Corps of
Engineers District Office. If the proposed development impacts on
threatened or endangered species or the community is unsure if it does,
have the applicant consult with the nearest U.S. Fish and Wildlife
Service field office.

*Certification by Registered Professional Engineer and/or Land Surveyor*

The person certifying this submittal must provide a valid license number
and expiration date for their license.  If this information is provided,
affixing a seal is optional.  If a seal is available, however, it may be
affixed in the seal box provided on this form. The licensed professional
engineer and/or land surveyor should have a current license in the State
where the affected communities are located. While the individual signing
this form is not required to have obtained the supporting data or
performed the analyses, he or she must have supervised and reviewed the
work.

A certification by a registered professional engineer or other party
does not constitute a warranty or guarantee of performance, expressed or
implied. Certification of data is a statement that the data is accurate
to the best of the certifier\'s knowledge. Certification of analyses is
a statement that the analyses have been performed correctly and in
accordance with sound engineering practices. Certification of structural
works is a statement that the works are designed in accordance with
sound engineering practices to provide protection from the 1% annual
chance flood. Certification of \"as-built\" conditions is a statement
that the structure(s) has been built according to the plans being
certified, is in place, and is fully functioning.

If the requester is a Federal agency who is responsible for the design
and construction of flood control facilities, a letter stating that,
\"the analyses submitted have been performed correctly and in accordance
with sound engineering practices\" may be submitted in lieu of
certification by a registered professional engineer. Regarding the
certification of completion of flood control facilities, a letter from
the Federal agency certifying its completion and the flood frequency
event to which the project protects may be submitted in lieu of this
form.

*Forms Submitted*

Indicate which forms are submitted with the revision request.

**INSTRUCTIONS FOR COMPLETING THE RIVERINE HYDROLOGY & HYDRAULICS FORM**

**(FORM 2)**

This form should be used for revision requests that involve new or
revised hydrologic and/or hydraulic analyses of rivers, streams, ponds,
or small lakes. A separate form should be used for each flooding source.

# [Section A: Hydrology]{.underline}

This section is to be completed when discharges other than those used in
the effective Flood Insurance Study (FIS) are proposed.

1.  Indicate the reason for the new or revised hydrologic analysis. For
    revisions based on alternative methodologies or improved data, an
    explanation as to why the alternative methodology or improved data
    provides better results over the FIS must be presented and supported
    throughout the form.

2\. Compare the effective 1% annual chance (100-year) discharges to the
revised 1% annual chance discharges at three representative locations.

> In accordance with National Flood Insurance Program (NFIP)
> regulations, if only a portion of a detailed study stream is revised,
> transition to the unrevised portion must be ensured to maintain the
> continuity of the study. Attach an explanation of how the proposed
> discharge in the revised portion of the stream transitions to the
> effective discharge in the unrevised portion of the stream, and vice
> versa.

3\. Specify the method used for the new analysis. Attach any additional
backup computations and supporting data such as a drainage area map,
soils map, soil group names, time of concentration computations, curve
numbers, etc. Disks with the digital models should also be included.
Models submitted in support of a revision request must meet the
requirements of Subparagraph 65.6(a)(6) of the NFIP regulations. A list
of accepted FEMA hydrologic models can be found at
<http://www.fema.gov/plan/prevent/fhm/en_hydro.shtm>.

4.  If approval of the new hydrologic analysis is required by a local,
    State, or Federal agency, indicate if the analysis and resulting
    peak discharge value(s), have been approved by the appropriate
    local, State, or Federal agency and attach evidence of the approval.

5.  In locations where sediment transport affects hydrology, the effects
    of sediment transport should be considered in the hydrology and
    Section F of Form 3 should be submitted.

# [Section B: Hydraulics]{.underline}

This section is to be completed when the request involves a hydraulic
analysis for riverine flooding that differs from that used to develop
the Flood Insurance Rate Map (FIRM).

1.  Indicate the reach of stream to be revised. The area of the revision
    is defined by an effective tie-in at the upstream and downstream
    limits. For streams that have a detailed study, an effective tie-in
    is obtained when the revised base flood and floodway elevations are
    within 0.5 feet of the effective elevations, and the revised
    floodway encroachment stations match the effective floodway stations
    at both the upstream and downstream limits. For streams that do not
    have a detailed study, an effective tie-in is obtained when the
    revised base flood elevations are within 0.5 feet of the pre-project
    conditions model at both the upstream and downstream limits. Please
    note that the area of revision and the project area are not
    necessarily the same. If the revised model does not tie-in to the
    effective study at the project limits, the model must be extended
    upstream and downstream until it ties-in to the effective study.

2.  Indicate the Hydraulic Method used for the revision. A list of
    Hydraulic models accepted by FEMA can be found at
    <http://www.fema.gov/plan/prevent/fhm/en_hydra.shtm>. If using a
    hydraulic model that does not appear on the list of accepted models,
    please provide documentation showing that the model meets the
    requirements of NFIP regulation 65.6(a)(6).

3.  Indicate if the CHECK-2 or CHECK-RAS programs were used to verify
    that the hydraulic estimates and assumptions in the model are
    comparable to the assumptions and limitations of HEC-2 or HEC-RAS.
    CHECK‑2 and CHECK‑RAS are review tools that identify areas of
    potential error or concern. These tools do not replace engineering
    judgment. CHECK-2 and CHECK-RAS can be downloaded from FEMA's
    Internet site at
    <http://www.fema.gov/plan/prevent/fhm/frm_soft.shtm>. We recommend
    that you review your HEC‑2 and HEC-RAS models with CHECK-2 and
    CHECK-RAS. If you disagree with the comment messages, please attach
    an explanation of why the messages are not valid in each case. To
    reduce processing time, review your hydraulic model and resolve
    valid modeling discrepancies, before submitting it for review.

4.  Indicate the hydraulic models submitted.

> **Submittal requirements for areas that have detailed flooding:**
> Printouts of input and output listings along with files on diskette or
> CD for each of the models and supporting data (e.g., description of
> vegetation and land use map) for the source of input parameters used
> in the models listed below must be provided. The summary must include
> a description of any changes made from model to model (e.g., Duplicate
> Effective Model to Corrected Effective Model). At a minimum, the
> Duplicate Effective Model and the Revised or Post-Project Conditions
> Model must be submitted. The hydraulic analyses shall be performed for
> all flood frequencies and the floodway published in the effective FIS.
>
> **Submittal requirements for areas that do not have detailed
> flooding:** Only the 1% annual chance (Base) flood computations are
> required. A hydraulic model is not required for areas that do not have
> detailed flooding; however, Base Flood Elevations (BFEs) may not be
> added to the revised FIRM. If a hydraulic model is developed for the
> area, the Existing or Pre-project Model and the Revised or
> Post-Project Conditions Model, if applicable, described below must be
> submitted.

##### Duplicate Effective Model

> The duplicate effective model is a copy of the hydraulic analysis used
> in the effective FIS, referred to as the effective model. The
> effective model should be obtained and then reproduced on the
> requester's equipment to produce the duplicate effective model. This
> is required to ensure that the effective model's input data has been
> transferred correctly to the requester's equipment and to ensure that
> the revised data will be integrated into the effective data to provide
> a continuous FIS model upstream and downstream of the revised reach.
>
> For information on how to obtain copies of the effective FIS models,
> see FEMA's Internet site at
> <http://www.fema.gov/plan/prevent/fhm/st_order.shtm>. If data from the
> effective model is available and the same modeling program is being
> used, the requester must generate models that duplicate the FIS
> profiles and the elevations shown in the Floodway Data Table in the
> FIS report to within 0.1 foot. The appropriate FEMA Regional Office
> should be contacted if this model cannot be produced. See Appendix C
> for the addresses and telephone numbers of FEMA's Regional Offices. If
> the effective model is not available, the new model must be calibrated
> to reproduce the FIS profiles within 0.5 foot. If an alternative
> hydraulic model is used, it must be shown that the use of the original
> model is inappropriate and the new model must be calibrated to
> reproduce the FIS profiles within 0.5 foot.

##### Corrected Effective Model

> The Corrected Effective Model is the model that corrects any errors
> that occur in the Duplicate Effective Model, adds any additional cross
> sections to the Duplicate Effective Model, or incorporates more
> detailed topographic information than that used in the current
> effective model. The Corrected Effective Model must not reflect any
> man-made physical changes since the date of the effective model. An
> error could be a technical error in the modeling procedures, or any
> construction in the floodplain that occurred prior to the date of the
> effective model but was not incorporated into the effective model.
>
> *Existing or Pre-Project Conditions Model*
>
> The Duplicate Effective Model or Corrected Effective Model is modified
> to produce the Existing or Pre-Project Conditions Model to reflect any
> modifications that have occurred within the floodplain since the date
> of the Effective model but prior to the construction of the project
> for which the revision is being requested. If no modification has
> occurred since the date of the effective model, then this model would
> be identical to the Corrected Effective Model or Duplicate Effective
> Model. The existing or pre-project model may be required to support
> conclusions about the actual impacts of the project associated with
> the revised or post-project model or to establish more up-to-date
> models on which to base the revised or post-project conditions model.
>
> *Revised or Post-Project Conditions Model*

The Existing or Pre-Project Conditions Model (or Duplicate Effective
Model or Corrected Effective Model, as appropriate) is modified to
reflect revised or post-project conditions. This model must incorporate
any physical changes to the floodplain since the effective model was
produced as well as the effects of the project. When the request is for
a proposed project, this model must reflect proposed conditions.

The information requested on the Riverine Hydrology & Hydraulics Form is
intended to document the steps taken by the requester in the process of
preparing the revised or post-project conditions hydraulic model and the
resulting revised FIS information. The following guidelines should be
followed when completing the form:

-   [All]{.underline} changes to the duplicate and subsequent models
    must be supported by certified topographic information, bridge
    plans, construction plans, survey notes, etc.

-   Changes to the hydraulic models should be limited to the stream
    reach for which the revision is being requested. Cross sections
    upstream and downstream of the revised reach should be
    [identical]{.underline} to those in the effective model. If this is
    done, water surface elevations and topwidths computed by the revised
    models should match those in the effective models upstream and
    downstream of the revised reach as required.

-   There [must]{.underline} be consistency between the revised
    hydraulic models, the revised floodplain and floodway delineations,
    the revised flood profiles, topographic work map, annotated FIRMs
    and/or Flood Boundary Floodway Maps (FBFMs), construction plans,
    bridge plans, etc.

# Section C: Mapping Requirements

A [certified]{.underline} topographic map of suitable scale, contour
interval, and planimetric definition must be submitted showing the
applicable items indicated on the form. If a digital version of the map
is available, it may be submitted so that the FIRM may be more easily
revised.

Attach an annotated FIRM panel showing the revised 1% and 0.2% annual
chance floodplains and floodway boundaries. The revised boundaries must
tie into the effective boundaries. The annotated FIRM ensures that FEMA
is aware of how the requester anticipates the FIRM will be revised.

# Section D: Common Regulatory Requirements

1.  Indicate "yes" for the following situations:

    -   Projects that will have construction within the floodway, which
        cause the BFEs to increase (more than 0.00 feet), or

    -   Projects that will have construction within the floodplain of
        streams that have a detailed effective study, but for which a
        floodway has not been established, which cause the BFEs to
        increase more than 1.0 foot (or any other more stringent
        requirement set by the community or State).

If either of the two situations occurs, then the conditions in NFIP
Regulation 44 CFR Ch. 1, Section 65.12 must be met. The conditions of
NFIP Regulation 44 CFR Ch. 1, Section 65.12 include:

-   An evaluation of alternatives, which would not result in a BFE
    increase above that permitted demonstrating why these alternatives
    are not feasible;

-   Documentation of individual legal notice to all affected property
    owners within and outside of the community, explaining the impact of
    the proposed action on their property;

-   Concurrence of the Chief Executive Officer (CEO) and any other
    communities affected by the proposed actions; and

-   Certification that no structures are located in areas that would be
    impacted by the increased base flood elevation.

2.  Indicate if the placement of fill is involved with the revision
    request. Fill is defined as material from any source placed to raise
    the ground to or above the BFE. If fill has been placed to remove an
    area or structure from the Special Flood Hazard Area (SFHA), the
    community must sign the appropriate section of Form 1 certifying
    that the area to be removed from the special flood hazard area, to
    include any structures or proposed structures, (will) meets all of
    the standards of the local floodplain ordinances, and is reasonably
    safe from flooding in accordance with NFIP Regulation 44 CFR
    65.2(c). "Reasonably safe from flooding" means that the base flood
    waters will not inundate the land or damage the structures to be
    removed from the SFHA and that any subsurface waters related to the
    base flood will not damage existing or proposed buildings.
    Information on ensuring that structures built on fill in or near the
    SFHA are reasonably safe from flooding may be obtained from FEMA's
    Technical Bulletin 10‑01, "Ensuring That Structures Built on Fill In
    or Near Special Flood Hazard Areas Are Reasonably Safe from
    Flooding," which is available on FEMA's Internet site at
    <http://www.fema.gov/pdf/fima/tb1001.pdf>.

3.  Indicate if the request involves a floodway revision. If the
    floodway is being revised, the requirements of NFIP Regulation 44
    CFR Ch. 1, Section 65.7 must be met. These requirements include
    submitting a copy of a public notice distributed by the community
    stating the community\'s intent to revise the floodway or a
    statement by the community that it has notified all affected
    property owners and affected adjacent jurisdictions. Samples of a
    public notice and of an individual notification for a floodway
    revision are shown in Figures 3 and 4, respectively.

4.  Indicate if property owner notification and acceptance (if
    available) are required because the revision request involves
    increases in flood hazards from those shown on the FIRM.  FEMA must
    provide a statutory 90-day appeal period for all map revisions
    entailing Base (1% annual chance \[100-year\]) Flood Elevation (BFE)
    changes. LOMRs with decreasing flood hazards (1% annual chance
    water-surface elevations, floodplains, or floodways) typically are
    effective the day of issuance, with any necessary appeal period
    provided afterwards. LOMRs with increasing flood hazards typically
    are not effective until after any required appeal period has expired
    and any necessary ordinance changes have been made by the community
    (3 to 6 months). However, a LOMR that reflects increasing flood
    hazards may be effective on the day of issuance if all property
    owners affected by these increases are notified and approve of the
    increases, and the community concurs with the revision.  Samples of
    individual notifications for various increases in the SFHAs, BFEs,
    and floodways are shown on Figures 4 through 8.

> The {insert community name} {insert appropriate community department
> for floodplain management}, in accordance with National Flood
> Insurance Program regulation 65.7(b)(1), hereby gives notice of the
> {insert community designation Township\'s / Village\'s/ Borough\'s /
> County\'s} intent to revise the floodway, generally located between
> {insert general location of floodway revision}. Specifically, the
> floodway shall be revised from a point {describe downstream limit of
> floodway revision} to a point {describe upstream limit of floodway
> revision}. As a result of the floodway revision, the floodway shall
> {widen and/or narrow} with a maximum widening of {insert maximum
> widening} feet at a point approximately {insert location of widening}
> and/or a maximum narrowing of {insert maximum narrowing} feet at a
> point approximately {insert location of narrowing}.
>
> Maps and detailed analysis of the floodway revision can be reviewed at
> the {insert location} at {insert location address}. Interested persons
> may call {insert community contact name or position} at {insert
> contact phone number} for additional information from ... to ...
> {insert dates during which community contact person can be contacted}.

**Figure 3.**

###### SAMPLE NOTIFICATION FOR LOMR FLOODWAY REVISION

######### (to be used by community when placing a notice in a newspaper)

> {Date}
>
> {Affected property owner name}
>
> {Affected property owner mailing address}
>
> Re: Notification of Floodway Revision for {flooding source}
>
> Dear Mr./Ms./Mr. & Mrs. {Affected property owner}
>
> The Flood Insurance Rate Map (FIRM) for a community depicts the
> floodplain, the area which has been determined to be subject to a 1%
> (100-year) or greater chance of flooding in any given year. The
> floodway is the portion of the floodplain that includes the channel of
> a river or other watercourse and the adjacent land area that must be
> reserved in order to discharge the base flood without cumulatively
> increasing the water-surface elevation by more than a designated
> height.
>
> The {insert community name} {insert appropriate community department
> for floodplain management}, in accordance with National Flood
> Insurance Program regulation 65.7(b)(1), hereby gives notice of the
> {insert community designation Township\'s / Village\'s/ Borough\'s /
> County\'s} intent to revise the 1% annual chance (100-year) floodway,
> generally located between {insert general location of floodway
> revision}. Specifically, the floodway shall be revised from a point
> {describe downstream limit of floodway revision} to a point {describe
> upstream limit of floodway revision}. As a result of the floodway
> revision the floodway shall {widen and/or narrow} with a maximum
> widening of {insert maximum widening} feet at a point approximately
> {insert location of widening} and a maximum narrowing of {insert
> maximum narrowing} feet at a point approximately {insert location of
> narrowing}.
>
> Maps and detailed analysis of the floodway revision can be reviewed at
> the {insert location} at {insert location address}. If you have any
> questions or concerns about the proposed project or its affect on your
> property, you may contact {name of appropriate community official} of
> {name of community} at {community official contact information} from
> ... to ... {insert dates during which community contact person can be
> contacted}.
>
> Sincerely,
>
> {Community official name}
>
> {Community official position}
>
> {Community official contact information}

**Figure 4.**

**SAMPLE LETTER FOR LOMR FLOODWAY REVISION NOTIFICATION**

######### (to be used by community if notifying property owners individually by letter) 

> {Date}
>
> {Affected property owner name}
>
> {Affected property owner mailing address}
>
> Re: Notification of increases in 1% (100-year) annual chance
> water-surface elevations
>
> Dear Mr./Ms./Mr. & Mrs. {Affected property owner}
>
> The Flood Insurance Rate Map (FIRM) for a community depicts land which
> has been determined to be subject to a 1% (100-year) or greater chance
> of flooding in any given year. The FIRM is used to determine flood
> insurance rates and to help the community with floodplain management.
>
> {Revision Requester} is applying for a Conditional Letter of Map
> Revision from the Federal Emergency Management Agency (FEMA) on behalf
> of {Revision requester's client} to revise FIRM {insert FIRM #, panel
> #, and suffix} for {insert community name, state} along {insert name
> of flooding source}. {Revision requester's client} is proposing
> {describe project} as part of {explain project purpose}.
>
> The proposed project will result in increases {and decreases} in the
> 1% annual chance water-surface elevations for {insert flooding source}
> with a maximum increase of {enter maximum increase} feet at a point
> approximately (location of maximum increase} and a maximum decrease in
> the 1% annual chance water-surface elevation of {enter maximum
> decrease} feet at a point approximately {location of maximum
> decrease}.
>
> This letter is to inform you of the proposed increases in the 1%
> annual chance water-surface elevations on your property at {insert
> physical address}.
>
> If you have any questions or concerns about the proposed project or
> its affect on your property, you may contact {name of appropriate
> community official} of {name of community} at {community official
> contact information} from ... to ... {insert dates during which
> community contact person would like to be contacted}.
>
> Sincerely,
>
> {Revision requester name}

######### Figure 5.

######### SAMPLE LETTER FOR CLOMR NOTIFICATION OF INCREASES IN BFEs 

> {Date}
>
> {Affected property owner name}
>
> {Affected property owner mailing address}
>
> Re: Notification of {widening and/or narrowing} of 1% (100-year)
> annual chance floodplain
>
> Dear Mr./Ms./Mr. & Mrs. {Affected property owner}
>
> The Flood Insurance Rate Map (FIRM) for a community depicts land which
> has been determined to be subject to a 1% (100-year) or greater chance
> of flooding in any given year. The FIRM is used to determine flood
> insurance rates and to help the community with floodplain management.
>
> {Revision Requester} is applying for a Letter of Map Revision (LOMR)
> from the Federal Emergency Management Agency (FEMA) on behalf of
> {Revision requester's client} to revise FIRM {insert FIRM #, panel #,
> suffix} for {insert community name, state} along {insert name of
> flooding source}. {Revision requester} is proposing to revise the FIRM
> to reflect {describe project}.
>
> The revision to the FIRM will result in widening {and narrowing} of
> the 1% annual chance (Zone A) floodplain for {insert name of flooding
> source}. The maximum widening of {enter maximum increase} feet occurs
> at a point approximately {location of maximum widening} while the
> maximum narrowing of {enter maximum narrowing} feet occurs at a point
> approximately {location of maximum narrowing}.
>
> {Choose one of the following two paragraphs}
>
> This letter is to inform you of the revision of the 1% annual chance
> (Zone A) floodplain on your property at {insert physical address}.
>
> {or}
>
> We would like to obtain your acceptance of revision of the 1% annual
> chance (Zone A) floodplain on your property at {insert physical
> address}. Please sign and date the provided copy of this letter to
> signify your acceptance and return it to {Revision Requester\'s
> address} by {insert date to return acceptance by}.
>
> If you have any questions or concerns about the proposed changes to
> the FIRM or its effects on your property, you may contact me at
> {Revision requester contact phone number}.
>
> Sincerely,
>
> {Revision requester name}
>
> {Insert the following if asking for property owner acceptance}
>
> I, {insert property owner name}, accept the redelineation of the 1%
> annual chance floodplain as described above.
>
> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
>
> {insert property owner name} Date

######### 

**Figure 6.**

**SAMPLE LETTER FOR LOMR NOTIFICATION & ACCEPTANCE IN ZONE A THAT WILL
WIDEN AND NARROW THE FLOODPLAIN BUT NOT ESTABLISH BFEs**

> {Date}
>
> {Affected property owner name}
>
> {Affected property owner mailing address}
>
> Re: Notification of {widening and/narrowing} of 1% (100-year) annual
> chance floodplain and establishment of Base Flood Elevations
>
> Dear Mr./Ms./Mr. & Mrs. {Affected property owner}
>
> The Flood Insurance Rate Map (FIRM) for a community depicts land which
> has been determined to be subject to a 1% (100-year) or greater chance
> of flooding in any given year. The FIRM is used to determine flood
> insurance rates and to help the community with floodplain management.
>
> {Revision Requester} is applying for a Letter of Map Revision (LOMR)
> from the Federal Emergency Management Agency (FEMA) on behalf of
> {Revision requester's client} to revise FIRM {insert FIRM #, panel #,
> suffix} for {insert community name, state} along {insert name of
> flooding source}. {Revision requester} is proposing to revise the FIRM
> to reflect {describe project}.
>
> The Letter of Map Revision will result in:

1.  Establishment of Base (1% annual chance) Flood Elevations (BFEs).
    Currently, the flooding along {flooding source} is based on an
    approximate study.

2.  Widening {and narrowing} of the 1% annual chance floodplain with the
    maximum widening of {enter maximum increase} feet at a point
    approximately {location of maximum widening} and the maximum
    narrowing of {enter maximum narrowing} feet at a point approximately
    {location of maximum narrowing}.

> {Please choose one of the following two paragraphs}
>
> This letter is to inform you of the establishment of Base Flood
> Elevations and revision of the 1% annual chance floodplain on your
> property at {insert physical address}.
>
> {or}
>
> We would like to obtain your acceptance of the establishment of Base
> Flood Elevations and revision of the 1% annual chance floodplain on
> your property at {insert physical address}. Please sign and date the
> provided copy of this letter and return it to {Revision Requester\'s
> address} by {insert date to return acceptance by}.
>
> If you have any questions or concerns about the proposed changes to
> the FIRM or its effect on your property, you may contact me at
> {Revision requester contact phone number}.
>
> Sincerely,
>
> {Revision requester name}
>
> {Insert the following if asking for property owner acceptance}
>
> I, {insert property owner name}, accept establishment of Base Flood
> Elevation on {insert flooding source name} and redelineation of the 1%
> annual chance floodplain as described above.
>
> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
>
> {insert property owner name} Date

**Figure 7.**

SAMPLE LETTER FOR LOMR NOTIFICATION & ACCEPTANCE IN ZONE A THAT WILL
ESTABLISH BFEs & WIDEN AND NARROW THE FLOODPLAIN

> {Date}
>
> {Affected property owner name and address}
>
> Re: Notification of 1% (100-year) annual chance water-surface
> elevation increases {and widening of the 1% annual chance floodplain}
>
> Dear Mr./Ms./Mr. & Mrs. {Affected property owner}
>
> The Flood Insurance Rate Map (FIRM) for a community depicts land which
> has been determined to be subject to a 1% (100-year) or greater annual
> chance of flooding in any given year. The FIRM is used to determine
> flood insurance rates and to help the community with floodplain
> management.
>
> {Revision Requester} is applying for a Letter of Map Revision (LOMR)
> from the Federal Emergency Management Agency (FEMA) on behalf of
> {Revision requester's client} to revise FIRM {insert FIRM #, panel #,
> suffix} for {insert community name, state} along {insert name of
> flooding source}. {Revision requester's client} is proposing {describe
> project} as part of {explain project purpose}.
>
> The Letter of Map Revision will result in:

1.  Increases {and decreases} in the 1% annual chance water-surface
    elevations with a maximum increase of {enter maximum increase} feet
    at a point approximately {location of maximum increase} and a
    maximum decrease in the 1% annual chance water-surface elevation of
    {enter maximum decrease} feet at a point approximately {location of
    maximum decrease}.

2.  Widening {and narrowing} of the 1% annual chance floodplain with the
    maximum widening of {enter maximum increase} feet at a point
    approximately {location of maximum widening} and the maximum
    narrowing of {enter maximum narrowing} feet at a point approximately
    {location of maximum narrowing}.

> {Choose one of the following two paragraphs}
>
> This letter is to inform you of revision of the 1% annual chance
> water-surface elevation and 1% annual chance floodplain on your
> property at {insert physical address}.
>
> {or}
>
> We would like to obtain your acceptance of revision of the 1% annual
> chance water-surface elevation and 1% annual chance floodplain on your
> property at {insert physical address}. Please sign and date the
> provided copy of this letter to signify your acceptance and return it
> to {Revision Requester\'s address} by {insert date to return
> acceptance by}.
>
> If you have any questions or concerns about the proposed changes to
> the FIRM or its effect on your property, you may contact me at
> {Revision requester contact phone number}.
>
> Sincerely,
>
> {Revision requester name}
>
> {Insert the following if asking for property owner acceptance}
>
> I, {insert property owner name}, accept increases in the 1% annual
> chance water-surface elevations and redelineation of the 1% annual
> chance floodplain as described above.
>
> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
>
> {insert property owner name} Date

**Figure 8.**

SAMPLE LETTER FOR LOMR NOTIFICATION & ACCEPTANCE THAT WILL RESULT IN
INCREASES IN ZONE AE OF BFEs & WIDENING OF THE FLOODPLAIN

INSTRUCTIONS FOR COMPLETING THE RIVERINE STRUCTURES FORM

**(FORM 3)**

This form should be used for revision requests that involve new or
proposed channelization, bridges/culverts, dams, and/or
levees/floodwalls. Only complete the sections of this form that are
applicable to the revision request. A separate form should be used for
each flooding source that has structures involved in the revision
request.

## Section A: General

Provide the name of the structure (e.g., Main Street Bridge or Flood
Creek channelization), the type of structure, the location of the
structure (e.g., 1000 feet upstream of Main Street or River Mile 10.4),
and the appropriate cross‑section labels for the structures that are
part of the revision request. Attach additional pages if the revision
request involves more than 3 structures. This form is not required for
existing structures that are included in the hydraulic model for the
effective Flood Insurance Rate Map (FIRM).

## Section B: Channelization

This section is to be completed when any portion of the stream channel
is altered or relocated. The purpose of the Channelization section and
the information to be submitted, is to ensure that the channel will
function properly as designed and pass the 1% annual chance flood as
determined by the hydraulic analysis. When the Channelization section is
submitted, a Riverine Hydrologic & Hydraulic Form (Form 2) must also be
submitted.

1.  Indicate all accessory structures included with the channelization.
    The accessory structures should be shown on the submitted plans.

2.  Attach engineering drawings of the channelization certified by a
    registered professional engineer. The drawings should include a plan
    view of the channelization that shows pre-construction topography
    and post-construction grading, channel cross section, channel
    lining, channel inlet and outlet, and details for any accessory
    structures included with the channelization.

Typically, channelization increases the channel velocity above the
natural channel velocity. Provide information that supports the
conclusion that the channel lining will withstand the velocities
associated with the 1% annual chance flood. The type of channel lining
should be indicated on the plans.

3.  Indicate the channel design criteria (i.e., capacity and type of
    flow) and if there is a potential for a hydraulic jump.

4.  In locations where sediment transport will affect the Base Flood
    Elevations (BFEs), the effects of sediment transport should be
    considered in the channelization analysis and Section F of Form 3
    should be submitted.

    **[Section C: Bridge/Culvert]{.underline}**

This section is to be completed when the request involves a new bridge
or culvert or a new or revised analysis of an existing bridge or
culvert.

1.  Indicate the reason for the new or revised bridge/culvert modeling.

2.  Indicate the model used to analyze the hydraulics at the
    bridge/culvert. If this model is different than the model used to
    analyze the flooding on the stream, then include an explanation of
    why a different model was used to analyze the bridge/culvert.

3.  Attach plans of the structure certified by a registered professional
    engineer. The bridge/culvert plans should include the information
    listed on the form. Indicate the items included on the plans, and
    attach an explanation of why any information is not included.

4.  In locations where sediment transport will affect the BFEs, the
    effects of sediment transport should be considered in the
    bridge/culvert analysis and Section F of Form 3 should be submitted.

# [Section D: Dam]{.underline}

This section is to be filled out when there is an existing, proposed, or
modified dam along a stream studied in detail. Provide a complete
engineering analysis and engineering drawings of the dam. The drawings
should indicate the dam dimensions (height, top width, side slopes), the
crest elevation of the top of the dam, the type of spillway, the
spillway dimensions, the crest elevation of the spillway, the type of
outlet, the outlet dimensions, and the invert elevation of the outlet.

1.  Indicate the reason for the revision request involving a dam.

2.  Indicate the agency or organization that designed the dam.

3.  Indicate if the hydrologic analysis is revised as a result of the
    dam. Any storage upstream of the dam, considered in the hydrologic
    analysis to reduce the peak base flood discharge, should be totally
    dedicated to flood control. If the outflow of the dam is regulated,
    submit an explanation of the flow regulation plan. Complete Form 2,
    Riverine Hydrology & Hydraulics Form, if the hydrology changes.

4.  In locations where sediment transport will affect the BFEs, the
    effects of sediment transport should be considered in the dam
    analysis and Section F of Form 3 should be submitted.

5.  Indicate if the Base Flood Elevations change as a result of the dam.
    If impacted, list the elevations. Indicate the stillwater elevations
    behind the dam.

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6.  Attach a copy of the Operation and Maintenance Plan for the dam with
    the revision request.

# [Section E: Levee/Floodwall]{.underline}

This section is to be completed when the revision request involves a new
or modified levee and/or floodwall system. A levee is a man-made
structure, usually an earthen embankment, designed and constructed in
accordance with sound engineering practices to contain, control, or
divert the flow of water so as to provide protection from temporary
flooding. The purpose of this section is to ensure that the levee or
floodwall is designed and/or constructed to provide protection from the
1% annual chance flood, in full compliance with National Flood Insurance
Program (NFIP) Regulation 44 CFR Ch. 1, Section 65.10, before reflecting
its effects on an NFIP map.

In addition, a vicinity map along with a complete set of flood profile
sheets, plan sheets, and layout detail sheets must be submitted. These
sheets must be numbered, and an index must be provided that clearly
identifies those sheets specifically relating to the levee or floodwall
in question.

1.  Indicate all the applicable levee/floodwall system elements,
    including their locations and types, and provide engineering
    drawings certified by a registered professional engineer. The
    drawings should show the items indicated.

2.  Indicate the amount of freeboard that the levee has above the base
    flood elevation. Riverine levees must provide a minimum freeboard of
    three feet above the BFE. An additional one-half foot above the
    minimum must be provided at the upstream end of the levee, tapering
    to not less than the minimum at the downstream end of the levee. An
    additional one-foot above the minimum freeboard is required on both
    sides of the river or stream for a distance of 100 feet upstream of
    structures (such as bridges) riverward of the levee or wherever the
    flow is constricted. If exceptions to the minimum freeboard
    requirements are requested, attach documentation addressing NFIP
    Regulation 44 CFR Ch. 1, Subparagraph 65.10(b)(1)(ii).

    Ice-jams can increase the flood elevations on a stream. Indicate if
    the stream has a history of ice-jams, and, if so, provide evidence
    that the minimum freeboard still exists with the ice-jam effects.

3.  List the closure devices for all openings through the levee system.
    All openings must be provided with closure devices that are
    structural parts of the system during operation and design.

4.  Complete the information to show where embankment protection is
    required, and submit supporting embankment protection analysis. The
    embankment protection analysis must demonstrate that no appreciable
    erosion of the levee embankment can be expected during the 1% annual
    chance flood, as a result of either current or waves, and that
    anticipated erosion will not result in failure of the levee
    embankment or foundation directly or indirectly through reduction of
    the seepage path and subsequent instability. Factors to be addressed
    include, but are not limited to: expected flow velocities, expected
    wind and wave action, ice loading, impact of debris, slope
    protection techniques, duration of flooding at various stages and
    velocities, embankment and foundation materials, levee alignment,
    bends, transitions, and levee side slopes. The table provide in the
    form is for riprap protection. If another method of embankment
    protection is used, then a table with similar information should be
    prepared and submitted with the forms.

5.  Complete the information to summarize the analysis of the levee and
    foundation. This analysis must evaluate both stability and seepage
    during the loading conditions associated with the base flood. The
    seepage analysis shall demonstrate that seepage into or through the
    levee embankment and foundation will not result in seepage and
    piping that will jeopardize the embankment and foundation stability.
    The slope stability analysis shall demonstrate that the levee cross
    section is stable under all loading and unloading conditions for the
    base flood. The analysis should include the river or channel slopes.
    Guidance on seepage and stability analyses is outlined in the U.S.
    Army Corps of Engineers (USACE) manual "Design and Construction of
    Levees," EM 1110-2-1913. This manual may be obtained at
    <http://www.usace.army.mil/inet/usace-docs/eng-manuals/em1110-2-1913/toc.htm>.\
    \
    Additional information on acceptable factors of safety for
    underseepage was previously provided by the USACE in Engineer
    Technical Letter ETL) 1110-2-555, Engineering and Design: Design
    Guidance for Levees. In May 2005, the USACE issued ETL-1110-2-569,
    \"Engineering and Design: Design Guidance for Levee Underseepage,\"
    to replace ETL 1110-2-555. The USACE is in the process of updating
    Engineer Manual (EM) 1110-2-1913, Engineering and Design: Design and
    Construction of Levees, to incorporate information from
    ETL-1110-2-569 among other required changes. Once the USACE issues
    the updated version of EM 1110-2-1913, it will supersede
    ETL-1110-2-569.\
    \
    ETL-1110-2-569 and other USACE ETLs may be viewed on, or downloaded
    from, the USACE Website through the following link:
    <http://www.usace.army.mil/publications/eng-tech-ltrs/etl-cw.html>.
    EM 1110-2-1913 and other EMs may be viewed on, or downloaded from,
    the USACE Website through the following link:
    <http://www.usace.army.mil/publications/eng-manuals/cecw.htm>.
    Instructions for obtaining printed copies of USACE documents are
    found on the USACE Website at
    [http://www.usace.army.mil/publications//](http://www.usace.army.mil/publications/).\
    \
    The factors that must be addressed in these analyses include: depth
    of flooding, duration of flooding, foundation conditions at the
    site, embankment and cut slope geometry and length of seepage path
    at the critical locations, internal drainage in the levee, seepage
    and/or stability berms and management of trees and vegetation. All
    backup material for these analyses should be submitted.

6.  See above embankment and foundation stability discussion. In
    addition, waterstops and joint materials should be incorporated into
    the floodwall design as outlined in USACE manual "Waterstops and
    Other Preformed Joint Materials for Civil Works Structures," EM
    1110-2-2102 to prevent passage of water through the wall. This
    manual may be obtained at
    <http://www.usace.army.mil/inet/usace-docs/eng-manuals/em1110-2-2102/toc.htm>.

7.  Complete the information to summarize the results from an analysis
    of potential settling of the levee. The settlement analysis must
    assess the potential and magnitude of future losses of freeboard and
    must demonstrate that the minimum freeboard requirements will be
    maintained. The analysis must address embankment loads,
    compressibility of embankment soils, compressibility of foundation
    soils, age of the levee system, and construction compaction methods.
    In addition, a detailed settlement analysis and determination of the
    appropriate amount of overbuild using procedures such as those
    described in USACE manuals "Settlement Analysis," EM 1110-2-1904 and
    "Design and Construction of Levees," EM 1110-2-1913, Chapter 6, must
    be submitted. Submit all backup information used in the analysis.

8.  Complete the information to summarize an analysis of potential
    flooding from interior drainage. In accordance with NFIP Regulation
    44 CFR Ch. 1, Subparagraph 65.10(b)(6), the interior drainage
    analysis must be based on the joint probability of interior and
    exterior flooding and the capacity of facilities for evacuating
    interior floodwaters. The analysis must identify the extent of the
    flooded area, and the water-surface elevation(s) of the 1% annual
    chance flood if the average depth is greater than one foot. This
    information is to show on a certified topographic work map. Submit
    the calculation and back-up information for the analysis of flooding
    potential from interior drainage.

9.  Complete the information and attach any supporting documentation
    regarding the design criteria indicated.

10. Complete the information to summarize the operational plan and
    criteria. For a levee system to be recognized by the Federal
    Emergency Management Agency (FEMA), the operational criteria must be
    as described in NFIP Regulation 44 CFR Ch. 1, Subparagraph 65.10(c).

11. Indicate if the maintenance plan for the levee is in compliance with
    NFIP Regulation 44 CFR Ch. 1, Subparagraph 65.10(d).

12. Submit a copy of the Operation and Maintenance Plan with the
    revision request. This plan should address maintenance standards,
    intervals and procedures. It should also include requirements for
    management of vegetation similar to what is outlined in USACE manual
    "Landscape Planting and Vegetation Management for Floodwalls, Levees
    and Embankment Dams," EM 1110-2-301. This manual can be obtained
    from the USACE Internet site at
    <http://www.usace.army.mil/inet/usace-docs/eng-manuals/em1110-2-301/toc.htm>.
    This plan should also include the design and construction
    requirements and inspection procedures for future utility crossings.
    The Operation and Maintenance Plan may not have to be submitted when
    requesting a Conditional Letter of Map Revision (CLOMR) for a
    proposed levee. However, it will be required after the levee is
    constructed and a revision to the FIRM is requested.

# [Section F: Sediment Transport]{.underline}

Complete the information to summarize an analysis of sediment transport
(including scour and deposition) if there is any indication from
historical records that sediment transport can affect the BFE, or if
based on the stream morphology, vegetative cover, development of the
watershed and bank conditions, there is a potential for debris and
sediment transport to affect the BFE or a structure. If sediment
transport will not affect the BFE or a structure, then indicate that
this section is not applicable and include an explanation as to why a
sediment analysis was not performed. Please note that bulked flows are
used to evaluate the performance of a structure during the base flood,
but FEMA does not map BFEs based on bulked flows.

**INSTRUCTIONS FOR COMPLETING THE COASTAL ANALYSIS FORM**

**(FORM 4)**

The information requested on the Coastal Analysis Form is intended to
document the steps taken by the requester in the process of preparing
the revised models or analyses and the resulting revised Flood Insurance
Study (FIS) information. Refer to the *Consolidated Guidelines and
Specifications for Flood Hazard Mapping Partners, Appendix D: Guidance
for Coastal Flooding Analyses and Mapping,* which can be obtained from
the Federal Emergency Management Agency's (FEMA's) Internet site at
<http://www.fema.gov/plan/prevent/fhm/dl_cgs.shtm>, for the wave height
analyses and mapping procedures used by FEMA for coastal areas. Wave
height, wave run-up, and storm induced erosion may be analyzed using the
program, CHAMP 1.1, which was developed for FEMA. CHAMP 1.1 may be
obtained from FEMA's Internet site at
<http://www.fema.gov/plan/prevent/fhm/frm_soft.shtm>. A list of accepted
FEMA coastal models can be found on FEMA's Internet site at
<http://www.fema.gov/plan/prevent/fhm/en_coast.shtm>. The following
guidelines should be followed when completing the form:

## Section A: Coastline to be Revised

Describe the limits of the restudied area. Road names and/or landmarks
in the vicinity of the restudied area or transects used in the effective
FIS may be used as reference points.

**[Section B: Effective FIS]{.underline}**

The type of analyses (approximate or detailed wave parameter
computations) used for the effective FIS for the community being
restudied must be provided. This information is available in the
hydrologic and hydraulic sections of the FIS report.

**[Section C: Revised Analysis]{.underline}**

All changes to effective models must be supported by certified
topographic information, structure plans, survey notes, storm surge
data, meteorological data, etc. All equations or models used must be
referenced. Descriptions and/or sketches of transect profiles should be
attached for revised erosion, wave height, wave runup, and wave
overtopping analyses. Wave runup and wave overtopping should be
considered when the wave heights approach the crest of the shore
protection structure or natural land forms. If FEMA procedures are not
used in the revised analyses, provide an explanation.

**[Section D: Results]{.underline}**

Information must be provided to determine the impact of the analysis on
the mapping of the coastal high hazard areas, including the location of
the coastal high hazard area boundaries, maximum wave height elevation,
and the maximum wave runup elevation. Mapping resulting from the
re-analysis of the effective study must tie-in with areas not
re-studied. The mapped inland limit of the coastal high hazard areas (V
Zones) as a result of the re-analysis must be in compliance with
National Flood Insurance Program (NFIP) Regulation 44 CFR Ch. 1, Section
65.11 in areas where primary frontal dunes are present.

**[Section E: Mapping Requirements]{.underline}**

With the revision request, submit a certified topographic map showing
the information indicated in the Mapping Requirements Section of the
Coastal Analysis Form. Also submit a copy of the current FIRM annotated
to show the revised 1% annual chance floodplain boundaries.

**INSTRUCTIONS FOR COMPLETING THE COASTAL STRUCTURES FORM**

**(FORM 5)**

The Coastal Structures Form is to be completed when a revision to
coastal flood hazard elevations and/or areas is requested based on
coastal structures being credited as providing protection from the base
flood. The purpose of the Coastal Structures Form is to ensure that the
structure is designed and constructed to provide protection from the
base flood without failing or causing an increase in flood hazards to
adjacent areas. Refer to the *Consolidated Guidelines and Specifications
for Flood Hazard Mapping Partners, Appendix D: Guidance for Coastal
Flooding Analyses and Mapping* which can be obtained from the Federal
Emergency Management Agency's (FEMA's) Internet site at
<http://www.fema.gov/plan/prevent/fhm/dl_cgs.shtm>, for the criteria for
evaluating flood protection structures.

If the coastal structure is a levee/floodwall, complete the
Levee/Floodwall System section of the Riverine Structure Form (Form 3),
in addition to this form. When the Coastal Structures Form is submitted,
the Coastal Analysis Form (Form 4) should also be submitted.

# [Section A: Background]{.underline}

Information about the type of structure, the location, the material
being used, and the age of the structure must be provided. Certified "as
built" plans must also be provided. If these plans are not available, an
explanation must be given with sketches of the general structure
dimensions as described. If the structure design has been certified by a
Federal agency to provide flood protection and withstand forces from the
1% annual chance (base) flood, the dates of the project completion and
certification of the structure should be provided, and the remainder of
the form does not need to be completed.

**[Section B: Design Criteria]{.underline}**

Documentation must be provided that ensures a coastal structure is
designed and constructed to withstand the wind and wave forces
associated with the base flood. The minimum freeboard of the structure
must be in compliance with National Flood Insurance Program (NFIP)
Regulation 44 CFR Ch. 1, Section 65.10. Additional concerns include the
impact to areas directly landward of the structure that may be subjected
to overtopping and erosion along with possible failure of the structure
due to undermining from the backside and the possible increase in
erosion to unprotected properties at the ends of the structure. The
evaluation of protection provided by sand dunes must follow the criteria
outlined in NFIP Regulation 44 CFR Ch. 1, Section 65.11.

# [Section C: Adverse Impact Evaluation]{.underline}

If the structure is new, proposed, or modified, and will impact flooding
and erosion for the areas adjacent to the structure, provide an
explanation and documentation to support your conclusions.

# [Section D: Community and/or State Review]{.underline}

Provide documentation of Community and/or State review of the revision.

# [Section E: Certification]{.underline}

The licensed professional engineer and/or land surveyor should have a
current license in the State where the affected communities are located.
While the individual signing this form is not required to have obtained
the supporting data or performed the analyses, he or she must have
supervised and reviewed the work.

If the requester is a Federal agency who is responsible for the design
and construction of flood control facilities, a letter stating that
\"the analyses submitted have been performed correctly and in accordance
with sound engineering practices\" may be submitted in lieu of
certification by a registered professional engineer. Regarding the
certification of completion of flood control facilities, a letter from
the Federal agency certifying its completion and the flood frequency
event to which the project protects may be submitted in lieu of this
form.

**INSTRUCTIONS FOR COMPLETING THE ALLUVIAL FAN FLOODING FORM**

**(FORM 6)**

This form should be used for revision requests involving alluvial fans.
The purpose of this form is to ensure that a structural flood control
measure in areas subject to alluvial fan flooding is designed and/or
constructed to provide protection from the 1% annual chance flood, in
compliance with National Flood Insurance Program (NFIP) Regulation 44
CFR Ch. 1, Section 65.13, before it is recognized on an NFIP map.
Elevating a parcel of land or a structure by fill or other means will
not serve as a basis for removing areas subject to alluvial fan flooding
from an area of special flood hazards. See NFIP Regulation 44 CFR Ch. 1,
Section 65.13. Complete engineering analyses must be submitted in
support of each section of this form. In addition, it may be necessary
to complete other forms relating to specific flood control measures,
such as levees/floodwalls, channelization, or dams.

# [Section A: Three-Stage Analysis]{.underline}

The three-stage analysis of alluvial fans is described in the Federal
Emergency Management Agency's (FEMA\'s) *Consolidated Guidelines and
Specifications for Flood Hazard Mapping Partners, Appendix G: Guidance
for Alluvial Fan Flooding Analyses and Mapping,* which can be obtained
from the Federal Emergency Management Agency's (FEMA's) Internet site at
<http://www.fema.gov/plan/prevent/fhm/dl_cgs.shtm>.

1.  Complete the information regarding the characterization of the
    alluvial fan landform.

2.  Complete the information regarding the definition of active and
    inactive areas.

3.  Complete the information regarding the determination of the 100-year
    floodplain boundaries.

# [Section B: Structural Flood Control Measures]{.underline}

Complete the information regarding any flood control structures. Submit
Form 3, Riverine Structure Form, and an Operation and Maintenance Plan
with the revision request. The Operation and Maintenance Plan may be
submitted when requesting a Conditional Letter of Map Revision (CLOMR),
but is not required. However, it will be required after construction is
complete and a revision to the Flood Insurance rate Map (FIRM) is
requested.

# [Section C: Mapping Requirements]{.underline}

With the revision request, submit a certified topographic map showing
the information indicated in the Mapping Requirements section of the
Alluvial Fan Flooding Form. Also submit a copy of the current FIRM
annotated to show the revised 1% annual chance floodplain boundaries.

**INSTRUCTIONS FOR COMPLETING THE PAYMENT INFORMATION FORM**

The Payment Information Form must be completed for all requests
requiring a fee. The current fee schedule for the reviewing and
processing of Conditional Letter of Map Revision (CLOMR) and Letter of
Map Revision (LOMR) requests may be obtained from the Federal Emergency
Management Agency's (FEMA's) Internet site at
<http://www.fema.gov/plan/prevent/fhm/frm_fees.shtm> or by calling
FEMA's Map Assistance Center at 1‑877‑FEMA MAP (1‑877‑336‑2627).

Indicate the name of the community and a project identifier (e.g.,
Floodville Estates Subdivision or Small Creek Channel Improvements). The
fees are sent to a different location from the revision request package.
It is important to have the name of the community and a project
identifier on the fee form, so that fees can be matched to the revision
requests.

Indicate whether the fee is being submitted for an MT-1 application, an
MT-2 application, or an External Data Request. This form is used for
several types of requests. The type of request should be indicated so
that the fees can be matched to the revision requests.

The request or case number should be indicated if it is known.
Generally, this number is not known when a revision is initially
requested. However, the case number should be indicated in any
subsequent correspondence with FEMA.

Indicate the amount and method of payment being used to pay the fee.

## Appendix A - Commonly Used Acronyms

BFE Base (1% annual chance) Flood Elevation. It is the height of the
base flood, usually in feet, in relation to the datum used, or the depth
of the base flood usually in feet, above the ground surface. The base
flood is the flood that has a 1% probability of being equaled or
exceeded in any given year (also referred to as the 100-year flood or
the 1% annual chance flood).

CFR Code of Federal Regulations.

CHHA Coastal High Hazard Area. An area of special flood hazard extending
from offshore to the inland limit of a primary frontal dune along an
open coast and any other area subject to high velocity wave action from
storms or seismic sources. CHHAs are indicated as V or VE Zones on the
Flood Insurance Rate Maps.

CLOMR Conditional Letter of Map Revision. A letter from FEMA commenting
on whether a proposed project, if built as proposed, would meet the
minimum standards of the National Flood Insurance Program.

FBFM The Flood Boundary and Floodway Map. The floodplain management map
issued by FEMA that depicts, on the basis of detailed analyses, the
boundaries of the 100- and 500-year floodplain and the regulatory
floodway.

FEMA Federal Emergency Management Agency.

FHBM The Flood Hazard Boundary Map. The initial flood insurance map
issued by FEMA that identified on the basis of approximate analyses, the
areas of 100-year flood hazard in a community.

FIRM Flood Insurance Rate Map. An official map of a community, on which
the Administrator has delineated both the special hazard areas and the
risk premium zones applicable to the community.

FIS Flood Insurance Study. An engineering study performed under contract
to FEMA to identify flood-prone areas and to determine BFEs, flood
insurance rate zones, and other flood risk data for a community.

LOMR Letter of Map Revision. A letter from FEMA officially revising the
current NFIP map to show changes to floodplains, floodways, or flood
elevations.

NFIP National Flood Insurance Program.

PMR Physical Map Revision. A reprinted NFIP map incorporating changes to
floodplains, floodways, or flood elevations. Because of the time and
cost involved to change, reprint, and redistribute an NFIP map, a PMR is
usually processed when a revision reflects large scope changes.

SFHA Special Flood Hazard Area. Areas inundated by a flood having a 1%
probability of being equaled or exceeded in any given year (also
referred to as the 100-year flood).

USACE U.S. Army Corps of Engineers.

WSEL Water Surface Elevation.

**[Appendix B - Useful Internet Sites]{.underline}**

Public Information:

> [http://www.fema.gov](http://www.fema.gov/) - FEMA's Internet site.
>
> [http://www.fema.gov/plan/prevent/fhm/en_main.shtm](http://www.fema.gov/fhm/en_main.shtm) -
> FEMA's Internet site for engineers and surveyors.
>
> [http://www.fema.gov/plan/prevent/fhm/ot_main.shtm](http://www.fema.gov/fhm/ot_main.shtm) -
> FEMA's Internet site for online tutorials.
>
> <http://www.fema.gov/fema/csb.shtm> - National Flood Insurance Program
> Community Status Book.
>
> <http://store.msc.fema.gov/> - Internet site for ordering NFIP maps.
>
> <http://www.access.gpo.gov/nara/cfr/waisidx_02/44cfrv1_02.html> - NFIP
> regulations.

Amendment/Revision Forms and Information:

> [http://www.fema.gov/plan/prevent/fhm/dl_mt-ez.shtm](http://www.fema.gov/fhm/dl_mt-ez.shtm) -
> MT-EZ form package, *Amendments to National Flood Insurance Program
> Maps, Application Form for Single Residential Lot or Structure.*
>
> [http://www.fema.gov/plan/prevent/fhm/dl_mt-1.shtm](http://www.fema.gov/fhm/dl_mt-1.shtm) -
> MT-1 form package, *Revisions to National Flood Insurance Program
> Maps, Application Forms for Conditional and Final Letters of Map
> Amendment and Letters of Map Revision Based on Fill.*
>
> [http://www.fema.gov/plan/prevent/fhm/dl_mt-2.shtm](http://www.fema.gov/fhm/dl_mt-2.shtm) -
> MT-2 form package, *Revisions to National Flood Insurance Program
> Maps, Application Forms and Instructions for Conditional Letters of
> Map Revision and Letters of Map Revision.*
>
> [http://www.fema.gov/plan/prevent/fhm/frm_fees.shtm](http://www.fema.gov/fhm/frm_fees.shtm) -
> Fee schedule for review and processing of CLOMR and LOMR requests.
>
> [http://www.fema.gov/plan/prevent/fhm/st_order.shtm](http://www.fema.gov/fhm/st_order.shtm) -
> Internet site for ordering backup information for an existing Flood
> Insurance Study.

Documents, Guidelines and Manuals:

> <http://www.fema.gov/pdf/fima/tb1001.pdf> - FEMA's Technical Bulletin
> 10-01, "Ensuring That Structures Built on Fill In or Near Special
> Flood Hazard Areas Are Reasonably Safe from Flooding."
>
> [http://www.fema.gov/plan/prevent/fhm/dl_zonea.shtm](http://www.fema.gov/fhm/dl_zonea.shtm) -
> FEMA's manual, "Managing Floodplain Development in Approximate Zone A
> Areas, A Guide for obtaining and developing Base (100-year) Flood
> Elevations."
>
> [http://www.fema.gov/plan/prevent/fhm/dl_cgs.shtm](http://www.fema.gov/fhm/dl_cgs.shtm) -
> FEMA\'s *Consolidated Guidelines and Specifications for Flood Hazard
> Mapping Partners, Appendix G: Guidance for Alluvial Fan Flooding
> Analyses and Mapping.*
>
> [http://www.fema.gov/plan/prevent/fhm/dl_cgs.shtm](http://www.fema.gov/fhm/dl_cgs.shtm) -
> FEMA\'s *Consolidated Guidelines and Specifications for Flood Hazard
> Mapping Partners, Appendix D: Guidance for Coastal Flooding Analyses
> and Mapping.*
>
> <http://www.usace.army.mil/inet/usace-docs/eng-manuals/em1110-2-1913/toc.htm> -
> USACE manual "Design and Construction of Levees," EM 1110-2-1913.
>
> <http://www.usace.army.mil/inet/usace-docs/eng-tech-ltrs/etl1110-2-555/toc.html> -
> USACE technical letter "Design Guidance for Levees," ETL 1110-2-555.
>
> <http://www.usace.army.mil/inet/usace-docs/eng-manuals/em1110-2-2102/toc.htm> -
> USACE manual "Waterstops and Other Preformed Joint Materials for Civil
> Works Structures," EM 1110-2-2102.
>
> <http://www.usace.army.mil/inet/usace-docs/eng-manuals/em1110-2-301/toc.htm> -
> USACE manual "Landscape Planting and Vegetation Management for
> Floodwalls, Levees and Embankment Dams," EM 1110‑2-301.

Software:

> [http://www.fema.gov/plan/prevent/fhm/en_modl.shtm](http://www.fema.gov/fhm/en_modl.shtm) -
> List of numerical models accepted by FEMA for the NFIP usage.
>
> [http://www.fema.gov/plan/prevent/fhm/frm_soft.shtm](http://www.fema.gov/fhm/frm_soft.shtm) -
> Engineering software developed by FEMA. The site also includes
> additional information, such as tutorials, user\'s manuals and
> guidance documentation for certain programs.

Federal Agencies:

> <http://www.epa.gov/> - Environmental Protection Agency
>
> <http://www.nasa.gov/> - National Aeronautics and Space Administration
> (NASA)
>
> <http://www.noaa.gov/> - National Oceanic and Atmospheric
> Administration (NOAA)
>
> <http://www.nws.noaa.gov/> - National Weather Service (NWS)
>
> <http://www.nrcs.usda.gov/> - Natural Resources Conservation Service
> (NRCS)
>
> <http://www.usace.army.mil/> - U.S. Army Corps of Engineers (USACE)
>
> <http://www.hec.usace.army.mil/> - USACE Hydrologic Engineering Center
> (HEC)
>
> <http://www.usda.gov/> - U.S. Department of Agriculture (USDA)
>
> <http://www.fws.gov/index.html> - U.S. Fish & Wildlife Service

**[Appendix C - FEMA OFFICES]{.underline}**

**[REGION I]{.underline}**

(Connecticut, Maine, Massachusetts,

New Hampshire, Rhode Island, Vermont)

FEMA, Federal Insurance and Mitigation Division

J. W. McCormack Post Office and

Courthouse Building, Room 442

Boston, Massachusetts 02109-4595

\(617\) 223-9540

**[REGION II]{.underline}**

(New York, Puerto Rico, New Jersey)

FEMA, Federal Insurance and Mitigation Division

26 Federal Plaza, Room 1351

New York, New York 10278-0001

\(212\) 680-3620

**[REGION III]{.underline}**

(Delaware, D.C., Maryland,

Pennsylvania, Virginia, West Virginia)

FEMA, Federal Insurance and Mitigation Division

One Independence Mall, Sixth Floor

615 Chestnut Street

Philadelphia, Pennsylvania 19106-4404

\(215\) 931-5506

**[REGION IV]{.underline}**

(Alabama, Florida, Georgia, Kentucky,

Mississippi, N. Carolina, S. Carolina, Tenn.)

FEMA, Federal Insurance and Mitigation Division

Koger Center - Rutgers Building

3003 Chamblee Tucker Road

Atlanta, Georgia 30341-4112

\(770\) 220-5400

**[REGION V]{.underline}**

(Illinois, Indiana, Michigan

Minnesota, Ohio, Wisconsin)

FEMA, Federal Insurance and Mitigation Division

536 South Clark Street, Sixth Floor

Chicago, Illinois 60605-1509

\(312\) 408-5548

**[REGION VI]{.underline}**

(Arkansas, Louisiana, New Mexico, Oklahoma, Texas)

FEMA, Federal Insurance and Mitigation Division

Federal Regional Center

800 North Loop 288

Denton, Texas 76209-3606

\(940\) 898-5165

**[REGION VII]{.underline}**

(Iowa, Kansas, Missouri, Nebraska)

FEMA, Federal Insurance and Mitigation Division

2323 Grand Boulevard, Suite 900

Kansas City, Missouri 64108-2670

\(816\) 283-7062

**[REGION VIII]{.underline}**

(Colorado, Montana, N. Dakota, S. Dakota, Utah,

Wyoming)

FEMA, Federal Insurance and Mitigation Division

Denver Federal Center

Building 710, Box 25267

Denver, Colorado 80225-0267

\(303\) 235-4800

**[REGION IX]{.underline}**

(Arizona, California, Hawaii, Nevada)

FEMA, Federal Insurance and Mitigation Division

1111 Broadway, Suite 1200

Oakland, California 94607-4036

\(510\) 627-7100

**[REGION X]{.underline}**

(Alaska, Idaho, Oregon, Washington)

FEMA, Federal Insurance and Mitigation Division

Federal Regional Center

130 228th Street, S.W.

Bothell, Washington, 98021-9796

\(206\) 487-4600

**[Headquarters]{.underline}**

Federal Emergency Management Agency

Federal Insurance and Mitigation Administration

Hazards Studies Branch

500 C Street, SW

Washington, DC 20472

1‑877‑FEMA MAP (1‑877‑336‑2627)