Windsor Estates-CS020322NATIONAL FLOOD INSURANCE PROGRAM
FEMA MAP COORDINATION CONTRACTOR
Walter E. Skipwith, P.E.
· 'v ~ce-President
Halff Associates, Inc.
8616 Northwest Plaza Drive
Dallas, TX 75225
IN REPLY REFER TO:
Case No.: 02 -06-1090P
Community: City of Coppell,
Dallas County, Texas
Community No.: 480170
316-ACK.FRQ
Dear Mr. Skipwith:
This responds to your request dated March 1, 2002, that the Federal Emergency Management Agency
(FEMA) issue a revision to the Flood Insurance Rate Map (FIRM) tbr the above-referenced community.
Pertinent information about the request is listed below.
Identifier:
Flooding Source:
FIRM Panel Affected:
Windsor Estates and DeForest Court
Denton Creek
Dallas County and Incorporated Areas
FIRM number 4811C0155 J, dated August 23, 2001
We have completed an inventory of the items that you submitted. The items identified below are required
before we can begin a detailed review of your request.
1. Our preliminary review reveals that the unincorporated areas of Dallas County, Texas, are affected
by this revision. Please provide community acknowledgment in the form of a letter stating that
Dallas County has reviewed the revision request and understands the effects of the revision on
flooding conditions in the community, or Application/Certification Form 1, titled "Revision
Requester and Community Official Form," signed by a community official from Dallas County.
2. Please resubmit an electronic copy of the natural and floodway post-project models. The models
submitted were inaccessible.
3. The submitted map titled Flood Plain and Floodway Delineations, contained in the submitted
report titled Windsor Estates and DeForest Court, prepared by HalffAssociates, Inc., dated
March 1, 2002, does not provide essential information required to complete our detailed review of
this request. Please submit a work map that includes topographic information as well as all
applicable items listed on Page 1 of 2 of the Application/Certification Form 5, titled
"Riverine/Coastal Mapping Form."
Please provide the following information, which was omitted from the submitted topographic work
map.
12101 Indian Creek Court, Beltsville, MD 20705 · Phone: 1-800-697-7275 ~' Fax: 301.210-5157
PBS&J, under contract with the FEDERAL EMERGENCY MANAGEMENT AGENCY,
is a Map Coordination Con~ractor for the National Flood Insurance Program
a. Topographic contour information used for the boundary delineation of the base flood must be
clearly represented; and
b. Flow line used in the hydraulic model.
Please submit a copy of the public notice distributed by your community stating its intent to revise
the floodway, or provide a statement by your community that it has notified all affected property
owrlel's.
5. Please submit a letter stating that your community will adopt and enforce the modified floodway.
Please submit documentation of individual legal notice to all property owners impacted by any
widening and/or shifting of the 1% annual chance (100-year) floodplain and floodway for Denton
Creek. This notice must include a descriptive explanation of the impacts caused by the proposed
project (see enclosed example notification letter).
In compliance with 465.6 of the National Flood Insurance Program (NFIP) regulations, the
community official responsible for floodplain management must sign and provide in writing a
statement that a property or structure, existing or proposed, to be removed from the Special Flood
Hazard Area (SFHA) meets minimum floodplain management criteria of 460.3 of the NFIP
regulations and is reasonably safe from flooding. This statement provides FEMA with assurance
that the community has reviewed all development plans and has found them to meet the following
requirements:
a. The lowest floor elevations (including basement) of all residential structures built in the area to
be removed from the SFHA are at or above the base flood (460.3(b)).
The area to be removed from the SFHA (including any existing or proposed structures) has
been determined to be "reasonably safe from flooding" (460.3(a)(3), 460.3(a)(4), and
Technical Bulletin 10-01).
c. All applicable Federal and State permits have been obtained (460.3(a)(2)).
d. All applicable local permits have been obtained. This includes a local development permit to
grade or place fill in the SFHA, and a permit for all existing or proposed construction
(§60.3(b)(1)).
f. Fill has not been placed in a floodway 460.3(d)(3) that causes a rise in flood elevations
associated with the base flood discharge.
6. Please submit a stage-storage-discharge relationship for the storage basin located within your
project site. This stage-storage-discharge relationship must correspond to the values used in your
hydrologic and hydraulic routing models and must extend to at least the 100-year discharge and
stage.
Please send the required data to us at the address shown at the bottom of the first page. If all required
items are not submined within 90 days of the date of this letter, FEMA will treat any subsequent request as
an original submittal, and it will be subject to all submittal/payment procedures.
If you are unable to meet the 90-day deadline for submittal of required items and would like FEMA to
continue processing your request, you must request an extension of the deadline. This request must be
submitted to us in writing and must provide (1) the reason why the data cannot be submitted within the
requested timeframe and (2) a new date for the submittal of the data. FEMA receives a very large volume
of requests and cannot maintain inactive requests for an indefinite period of time. Therefore, the fees will
be forfeited for any request for which neither the requested data nor a written extension request is received
within 90 days.
When you write to us about your request, please include the case number referenced above in your letter.
If you have general questions about your case, FEMA policy, or the NFIP, please call FEMA's toll free
map assistance line at 1-877-FEMA MAP (1-877-336-2627). If you have specific questions concerning
your request, please contact the Engineer assigned to your case, Mr. Scott Yi, by phone at 1-800-697-7275
Ext. 264, or by e-mail at ssyi~pbsj.com.
Sincerely,
Joseph A. Martinenza, Jr.
Acting Program Manager, Region VI
Enclosure
CCi
Kenneth M. Griffin, P.E., Director of Engineer and Public Works, City of Coppell
Don Holzwarth, P.E., Director of Public Works, Dallas County