CCRFCDgustfront.ccrfcd.org/pdf_arch1/Lomr/18-09-1695P_with_letter.pdfProject Manager Stanley...

Federal Emergency Management Agency Washington, D.C. 20472

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CERTIFIED MAIL RETURN RECEIPT REQUESTED

The Honorable Marilyn Kirkpatrick Chair, Board of Commissioners Clark County 500 South Grand Central Parkway, 6th Floor Las Vegas, NV 89106

Dear Ms. Kirkpatrick:

March 201 2019 ' 0111 '·' • .-, r.r• 1 lJ, ;J • l,

IN REPLY REFER TO: Case No.: I 8-09-I 695P Follows Conditional Case No.: 13-09-294 7R Community Name: Community No.: Effective Date of This Revision:

Clark County, NV 320003

August 1, 2019

The Flood Insurance Study Report and Flood Insurance Rate Map for your community have been revised by this Letter of Map Revision (LOMR). Please use the enclosed annotated map panel(s) revised by this LOMR for floodplain management purposes and for all flood insurance policies and renewals issued in your community.

Additional documents are enclosed which provide information regarding this LOMR. Please see the List of Enclosures below to determine which documents are included. Other attachments specific to this request may be included as referenced in the Determination Document. If you have any questions regarding floodplain management regulations for your community or the National Flood Insurance Program (NFIP) in general, please contact the Consultation Coordination Officer for your community. If you have any technical questions regarding this LOMR, please contact the Director, Mitigation Division of the Department of Homeland Security's Federal Emergency Management Agency (FEMA) in Oakland, California, at (510) 627-7175, or the FEMA Map Information eXchange (FM IX) toll free at 1-877-336-2627 ( 1-877-FEMA MAP). Additional information about the NFIP is available on our website at http://www.fema.gov/business/nfip.

Sincerely,

@--f-41 Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration

List of Enclosures:

Letter of Map Revision Determination Document Annotated Flood Insurance Rate Map Annotated Flood Insurance Study Report

cc: The Honorable Carolyn G. Goodman Mayor, City of Las Vegas

Ms. Mona Starnmetti, P.E. Project Manager Clark County

Mr. Andrew Trelease, P.E., CFM Assistant General Manager Clark County Regional Flood Control District

Ms. Abigail Mayrena, P.E., CFM Principal Civil Engineer Clark County Regional Flood Control District

Mr. Peter Jackson, CFM Senior Engineering Associate City of Las Vegas

Mr. Jeff Griest, P.E., CFM Project Manager Jacobs Engineering Group

Mr. Don Davis Senior Engineer Stanley Consultants, Inc.

Ms. Helena Murvosh, P.E. Project Manager Stanley Consultants, Inc.

Case No.: Page 1 of 5 Effective Date: August 1, 2019 Issue Date: March 20, 2019 LOMR-APP

13-09-2947R Follows Conditional Case No.:

18-09-1695P

Washington, D.C. 20472 Federal Emergency Management Agency

LETTER OF MAP REVISION DETERMINATION DOCUMENT

COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION

COMMUNITY

APPROXIMATE LATITUDE & LONGITUDE: 36.159, -115.064 SOURCE: USGS QUADRANGLE DATUM: NAD 83

Clark County Nevada

(Unincorporated Areas)

COMMUNITY NO.: 320003

BASIS OF REQUEST

IDENTIFIER

BRIDGE CHANNELIZATION

FLOODWAY HYDRAULIC ANALYSIS UPDATED TOPOGRAPHIC DATA

Las Vegas Wash-Nellis Blvd to Stewart Ave Improvements

ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES

DATE: November 16, 2011 NO.: 32003C2187F TYPE: FIRM* DATE: November 16, 2011 NO.: 32003C2190F TYPE: FIRM* DATE: November 16, 2011 NO.: 32003C2195F TYPE: FIRM*

DATE OF EFFECTIVE FLOOD INSURANCE STUDY REPORT: November 16, 2011 PROFILE(S): 39P AND 40P

FLOODWAY DATA TABLE: 5

Enclosures reflect changes to flooding sources affected by this revision. * FIRM - Flood Insurance Rate Map

FLOODING SOURCE(S) & REVISED REACH(ES)

Las Vegas Wash - From approximately 500 feet downstream of South Nellis Boulevard to approximately 1,860 feet upstream of Stewart Avenue.

SUMMARY OF REVISIONS Revised Flooding Effective Flooding Flooding Source Increases Decreases

Las Vegas Wash Zone AE Zone AE YES YES Zone A Zone X (unshaded) NONE YES BFEs* BFEs YES YES Floodway Floodway YES YES

* BFEs - Base Flood Elevations

DETERMINATION This document provides the determination from the Department of Homeland Security's Federal Emergency Management Agency (FEMA) regarding a request for a Letter of Map Revision (LOMR) for the area described above. Using the information submitted, we have determined that a revision to the flood hazards depicted in the Flood Insurance Study (FIS) report and/or National Flood Insurance Program (NFIP) map is warranted. This document revises the effective NFIP map, as indicated in the attached documentation. Please use the enclosed annotated map panels revised by this LOMR for floodplain management purposes and for all flood insurance policies and renewals in your community.

This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Map Information eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at http://www.fema.gov/nfip.

18-09-1695P 102-I-A-C

Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration

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Case No.: Page 2 of 5 Effective Date: August 1, 2019 Issue Date: March 20, 2019 LOMR-APP 18-09-1695P


LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED)

OTHER COMMUNITIES AFFECTED BY THIS REVISION

CID Number: 325276 Name: City of Las Vegas, Nevada AFFECTED MAP PANELS AFFECTED PORTIONS OF THE FLOOD INSURANCE STUDY REPORT

DATE OF EFFECTIVE FLOOD INSURANCE STUDY PROFILE(S): 39P AND 40P FLOODWAY DATA TABLE: 5

TYPE: FIRM* TYPE: FIRM*

NO.: 32003C2187F NO.: 32003C2195F

DATE: November 16, 2011 DATE: November 16, 2011

: November 16, 2011


18-09-1695P 102-I-A-C


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COMMUNITY INFORMATION

APPLICABLE NFIP REGULATIONS/COMMUNITY OBLIGATION

We have made this determination pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (P.L. 93-234) and in accordance with the National Flood Insurance Act of 1968, as amended (Title XIII of the Housing and Urban Development Act of 1968, P.L. 90-448), 42 U.S.C. 4001-4128, and 44 CFR Part 65. Pursuant to Section 1361 of the National Flood Insurance Act of 1968, as amended, communities participating in the NFIP are required to adopt and enforce floodplain management regulations that meet or exceed NFIP criteria. These criteria, including adoption of the FIS report and FIRM, and the modifications made by this LOMR, are the minimum requirements for continued NFIP participation and do not supersede more stringent State/Commonwealth or local requirements to which the regulations apply.

We provide the floodway designation to your community as a tool to regulate floodplain development. Therefore, the floodway revision we have described in this letter, while acceptable to us, must also be acceptable to your community and adopted by appropriate community action, as specified in Paragraph 60.3(d) of the NFIP regulations.

NFIP regulations Subparagraph 60.3(b)(7) requires communities to ensure that the flood-carrying capacity within the altered or relocated portion of any watercourse is maintained. This provision is incorporated into your community’s existing floodplain management ordinances; therefore, responsibility for maintenance of the altered or relocated watercourse, including any related appurtenances such as bridges, culverts, and other drainage structures, rests with your community. We may request that your community submit a description and schedule of maintenance activities necessary to ensure this requirement.

COMMUNITY REMINDERS

We based this determination on the 1-percent-annual-chance flood discharges computed in the FIS for your community without considering subsequent changes in watershed characteristics that could increase flood discharges. Future development of projects upstream could cause increased flood discharges, which could cause increased flood hazards. A comprehensive restudy of your community’s flood hazards would consider the cumulative effects of development on flood discharges subsequent to the publication of the FIS report for your community and could, therefore, establish greater flood hazards in this area.

Your community must regulate all proposed floodplain development and ensure that permits required by Federal and/or State/Commonwealth law have been obtained. State/Commonwealth or 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 your State/Commonwealth or community has adopted more restrictive or comprehensive floodplain management criteria, those criteria take precedence over the minimum NFIP requirements.


18-09-1695P 102-I-A-C


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We will not print and distribute this LOMR to primary users, such as local insurance agents or mortgage lenders; instead, the community will serve as a repository for the new data. We encourage you to disseminate the information in this LOMR by preparing a news release for publication in your community's newspaper that describes the revision and explains how your community will provide the data and help interpret the NFIP maps. In that way, interested persons, such as property owners, insurance agents, and mortgage lenders, can benefit from the information.

We have designated a Consultation Coordination Officer (CCO) to assist your community. The CCO will be the primary liaison between your community and FEMA. For information regarding your CCO, please contact:

Ms. Juliette Hayes Director, Mitigation Division

Federal Emergency Management Agency, Region IX 1111 Broadway, Suite 1200 Oakland, CA 94607-4052

(510) 627-7211

STATUS OF THE COMMUNITY NFIP MAPS

We will not physically revise and republish the FIRM and FIS report for your community to reflect the modifications made by this LOMR at this time. When changes to the previously cited FIRM panel(s) and FIS report warrant physical revision and republication in the future, we will incorporate the modifications made by this LOMR at that time.


18-09-1695P 102-I-A-C


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PUBLIC NOTIFICATION OF REVISION A notice of changes will be published in the Federal Register. This information also will be published in your local newspaper on or about the dates listed below, and through FEMA’s Flood Hazard Mapping website at https://www.floodmaps.fema.gov/fhm/bfe_status/bfe_main.asp

LOCAL NEWSPAPER Name: Las Vegas Review-Journal Dates: March 27, 2019 and April 3, 2019

Within 90 days of the second publication in the local newspaper, any interested party may request that we reconsider this determination. Any request for reconsideration must be based on scientific or technical data. Therefore, this letter will be effective only after the 90-day appeal period has elapsed and we have resolved any appeals that we receive during this appeal period. Until this LOMR is effective, the revised flood hazard determination presented in this LOMR may be changed.


18-09-1695P 102-I-A-C


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DISTANCE1 WIDTH

(FEET)

SECTION

AREA

(SQUARE

FEET)

MEAN

VELOCITY

(FEET PER

SECOND)

REGULATORY

WITHOUT

FLOODWAY

WITH

FLOODWAYINCREASE

1.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

37,706 39,495 40,710 42,110 43,910 45,508 46,055 46,720 47,250 48,610 49,749 50,749 52,010 52,415 52,840 54,075 55,640 57,497 58,072 58,462 59,633 60,832 62,482 64,118 65,505 67,290 69,290

650 261 242 218 183 183 124 184 172 153 222 191 187 237 313 238 13499 99 99 80109 116 134 131 139 145

4,692 2,239 2,181 2,205 1,830 1,516 1,522 1,400 1,229 1,181 1,935 1482 1,683 1,578 1,537 1,526 1,179 1,380 1,304509 738

1,325 1,003 1,246

914 1,604 1,419

4.0 8.4 8.6 8.5

10.2 12.4 12.3 13.3 15.2 15.89.6 9.4 8.2 8.8 8.8 8.9

11.5 9.7 10.2 25.1 17.39.6

12.79.6

13.17.5 8.4

1,670.9 1,677.9 1,680.3 1,683.6 1,688.2 1,691.2 1,694.7 1,695.8 1,696.4 1,702.4 1,710.0 1,712.9 1,718.8 1,720.1 1,721.4 1,725.4 1,729.2 1,732.6 1,732.7 1,732.7 1,739.5 1,745.8 1,755.2 1,760.9 1,765.8 1,772.8 1,783.2

1670.9 1667.9 1680.3 1683.6 1688.2 1691.2 1,694.7 1,695.8 1,696.4 1,702.4 1,710.0 1,712.9 1,718.8 1,720.1 1,721.4 1,725.4 1,729.2 1,732.6 1,732.7 1,732.7 1,739.5 1,745.8 1,755.2 1,760.9 1,765.8 1,772.8 1,783.2

1671.9 1667.9 1680.3 1683.6 1688.2 1691.2 1,694.7 1,695.8 1,696.4 1,702.4 1,710.0 1,712.9 1,718.8 1,720.1 1,721.4 1,725.4 1,729.2 1,732.61,732.7 1,732.7 1,739.5 1,745.8 1,755.2 1,760.9 1,765.8 1,772.8 1,783.2 0.0

1 Stream distance in feet above mouth

ZM

FLOODING SOURCE FLOODWAYBASE FLOOD

WATER-SURFACE ELEVATION(FEET NAVD)

CROSS SECTION

Las Vegas Wash

ZGZHZIZJZKZL

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FLOODWAY DATA

LAS VEGAS WASH

TA

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FEDERAL EMERGENCY MANAGEMENT AGENCY

CLARK COUNTY, NVAND INCORPORATED AREAS

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Clark CountyUnincorporated Areas

320003

City ofLas Vegas

325276

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ARIZONA AVE

CHANTILLY AVEMONTELLO AVE

MARI

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SCALE

0 500 1,000250Feet

1 inch = 500 feet 1:6,000

Map Projection:NAD 1983 UTM Zone 11N;Western Hemisphere; Vertical Datum: NAVD 88

0 150 30075Meters

NATIONAL FLOOD INSURANCE PROGRAMFLOOD INSURANCE RATE MAPCLARK COUNTY, NEVADAand Incorporated Areas

PANEL 2187 OF 4090Panel Contains:

MAP NUMBER

EFFECTIVE DATENOVEMBER 16, 2011

32003C2187F

VERSION NUMBER2.1.3.0

COMMUNITY NUMBER PANEL SUFFIX

SPECIAL FLOODHAZARD AREAS

OTHER AREAS OFFLOOD HAZARD

Without Base Flood Elevation (BFE)With BFE or DepthRegulatory Floodway

Zone A,V, A99Zone AE, AO, AH, VE, AR

0.2% Annual Chance Flood Hazard, Areas of 1% annual chance flood with average depth less than one foot or with drainage areas of less than one square mileFuture Conditions 1% Annual Chance Flood HazardArea with Reduced Flood Risk due to LeveeSee Notes.

Zone X

Zone X

Zone X

OTHERAREAS Area of Undetermined Flood Hazard Zone D

CLARK COUNTYLAS VEGAS, CITY OF

320003325276

21872187

FF

JOINS PANEL 2190

JOIN

S P

AN

EL 2

195

Las Vegas WashProfile Baseline

NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATEDWITHIN TOWNSHIP 20 SOUTH, RANGE 62 EAST ANDTOWNSHIP 21 SOUTH, RANGE 62 EAST.

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0405Clark County

Unincorporated Areas320003

S NEL

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WELTER AVEE CLEVELAND AVE

E SAINT LOUIS AVE

PATTERSON AVEE BOSTON AVE

E CHICAGO AVE

E CINCINNATI AVE

E BALTIMORE AVE

SCALE

0 1,000 2,000500Feet

1 inch = 1,000 feet 1:12,000


0 300 600150Meters



MAP NUMBER


32003C2190F








Zone X

Zone X

Zone X



320003325276

21902190

FF

THIS AREA SHOWN AT ASCALE OF 1" = 500'ON MAP NUMBER

32003C2187

ZONE AELas Vegas WashProfile Baseline

REVISEDAREA

AREA REVISED BYLOMR EFFECTIVE

SEPTEMBER 22, 2016


JOIN

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195

Channel



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SEPTEMBER 22, 2016

REVISEDAREA

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Channel

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04


320003

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LLIS

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REDE

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BLUESEA ST

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CLAR

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BEL

PORT

DR

BOXERWOOD DR

SIR WILLIAM WAY

STEE

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PARR

ISH LN

SIR N

OBLE

ST

SIR TH

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LN

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IN D

R

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WIND RIVER DR

RIATA

WAY

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ELAI

NE D

R

CITROEN

ST

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LABR

ADOR

DR

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N

SIR G

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Y LN

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AY

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UTE L

N

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JOIN

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187

JOIN

S P

AN

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190

SCALE

0 1,000 2,000500Feet

1 inch = 1,000 feet 1:12,000


0 300 600150Meters



MAP NUMBER


32003C2195F








Zone X

Zone X

Zone X



320003325276

21952195

FF


City ofLas Vegas

325276

1% ANNUAL CHANCEFLOOD DISCHARGECONTAINED INSTRUCTURE



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Federal Emergency Management Agency Washington, D.C. 20472

March 20, 2019

CERTIFIED MAIL RETURN RECEIPT REQUESTED

The Honorable Carolyn G. Goodman Mayor, City of Las Vegas City Hall 495 South Main Street Las Vegas, NV 89 IO I

Dear Mayor Goodman:

IN REPLY REFER TO: Case No.: l 8-09-l 695P Follows Conditional Case No.: 13-09-2947R Community Name: Community No.: Effective Date of This Revision:

City of Las Vegas, NV 325276

August 1, 2019

The Flood Insurance Study Report and Flood Insurance Rate Map for your community have been revised by this Letter of Map Revision (LOMR). Please use the enclosed annotated map panel(s) revised by this LOMR for floodplain management purposes and for all flood insurance policies and renewals issued in your community.

Additional documents are enclosed which provide information regarding this LOMR. Please see the List of Enclosures below to determine which documents are included. Other attachments specific to this request may be included as referenced in the Determination Document. If you have any questions regarding floodplain management regulations for your community or the National Flood Insurance Program (NFIP) in general, please contact the Consultation Coordination Officer for your community. If you have any technical questions regarding this LOMR, please contact the Director, Mitigation Division of the Department of Homeland Security's Federal Emergency Management Agency (FEMA) in Oakland, California, at (510) 627-7175, or the FEMA Map Information eXchange (FMIX) toll free at l-877-336-2627 (l-877-FEMA MAP). Additional information about the NFIP is available on our website at http://www.fema.gov/business/nfip.

Sincerely,

Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration

List of Enclosures:

Letter of Map Revision Determination Document Annotated Flood Insurance Rate Map Annotated Flood Insurance Study Report

cc: The Honorable Marilyn Kirkpatrick Chair, Clark County Board of Commissioners

Mr. Peter Jackson, CFM Senior Engineering Associate City of Las Vegas

Ms. Mona Stammetti, P.E. Project Manager Clark County

Mr. Andrew Trelease, P.E., CFM Assistant General Manager Clark County Regional Flood Control District

Ms. Abigail Mayrena, P.E., CFM Principal Civil Engineer Clark County Regional Flood Control District

Mr. Jeff Griest, P.E., CFM Project Manager Jacobs Engineering Group

Mr. Don Davis Senior Engineer Stanley Consultants, Inc.

Ms. Helena Murvosh, P.E. Project Manager Stanley Consultants, Inc.

Case No.: Page 1 of 5 Effective Date: August 1, 2019 Issue Date: March 20, 2019 LOMR-APP

13-09-2947R Follows Conditional Case No.:

18-09-1695P


LETTER OF MAP REVISION DETERMINATION DOCUMENT

COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION

COMMUNITY

APPROXIMATE LATITUDE & LONGITUDE: 36.159, -115.064 SOURCE: USGS QUADRANGLE DATUM: NAD 83

City of Las Vegas Clark County

Nevada

COMMUNITY NO.: 325276

BASIS OF REQUEST

IDENTIFIER

BRIDGE CHANNELIZATION

FLOODWAY HYDRAULIC ANALYSIS UPDATED TOPOGRAPHIC DATA

Las Vegas Wash-Nellis Blvd to Stewart Ave Improvements

ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES

DATE: November 16, 2011 DATE: November 16, 2011

NO.: 32003C2187F NO.: 32003C2195F

TYPE: FIRM* TYPE: FIRM*

DATE OF EFFECTIVE FLOOD INSURANCE STUDY REPORT: November 16, 2011 PROFILE(S): 39P AND 40P

FLOODWAY DATA TABLE: 5

Enclosures reflect changes to flooding sources affected by this revision. * FIRM - Flood Insurance Rate Map; ** FBFM - Flood Boundary and Floodway Map; *** FHBM - Flood Hazard Boundary Map

FLOODING SOURCE(S) & REVISED REACH(ES)

Las Vegas Wash - From approximately 500 feet downstream of South Nellis Boulevard to approximately 1,860 feet upstream of Stewart Avenue.

SUMMARY OF REVISIONS Revised Flooding Effective Flooding Flooding Source Increases Decreases

Las Vegas Wash Zone AE Zone AE YES YES Zone A Zone X (unshaded) NONE YES BFEs* BFEs YES YES Floodway Floodway YES YES

* BFEs - Base Flood Elevations

DETERMINATION This document provides the determination from the Department of Homeland Security's Federal Emergency Management Agency (FEMA) regarding a request for a Letter of Map Revision (LOMR) for the area described above. Using the information submitted, we have determined that a revision to the flood hazards depicted in the Flood Insurance Study (FIS) report and/or National Flood Insurance Program (NFIP) map is warranted. This document revises the effective NFIP map, as indicated in the attached documentation. Please use the enclosed annotated map panels revised by this LOMR for floodplain management purposes and for all flood insurance policies and renewals in your community.


18-09-1695P 102-I-A-C


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OTHER COMMUNITIES AFFECTED BY THIS REVISION

CID Number: 320003 Name: Clark County, Nevada AFFECTED MAP PANELS AFFECTED PORTIONS OF THE FLOOD INSURANCE STUDY REPORT

DATE OF EFFECTIVE FLOOD INSURANCE STUDY PROFILE(S): 39P AND 40P FLOODWAY DATA TABLE: 5

TYPE: FIRM* TYPE: FIRM* TYPE: FIRM*

NO.: 32003C2187F NO.: 32003C2190F NO.: 32003C2195F

DATE: November 16, 2011 DATE: November 16, 2011 DATE: November 16, 2011

: November 16, 2011


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COMMUNITY INFORMATION

APPLICABLE NFIP REGULATIONS/COMMUNITY OBLIGATION

We have made this determination pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (P.L. 93-234) and in accordance with the National Flood Insurance Act of 1968, as amended (Title XIII of the Housing and Urban Development Act of 1968, P.L. 90-448), 42 U.S.C. 4001-4128, and 44 CFR Part 65. Pursuant to Section 1361 of the National Flood Insurance Act of 1968, as amended, communities participating in the NFIP are required to adopt and enforce floodplain management regulations that meet or exceed NFIP criteria. These criteria, including adoption of the FIS report and FIRM, and the modifications made by this LOMR, are the minimum requirements for continued NFIP participation and do not supersede more stringent State/Commonwealth or local requirements to which the regulations apply.

We provide the floodway designation to your community as a tool to regulate floodplain development. Therefore, the floodway revision we have described in this letter, while acceptable to us, must also be acceptable to your community and adopted by appropriate community action, as specified in Paragraph 60.3(d) of the NFIP regulations.

NFIP regulations Subparagraph 60.3(b)(7) requires communities to ensure that the flood-carrying capacity within the altered or relocated portion of any watercourse is maintained. This provision is incorporated into your community’s existing floodplain management ordinances; therefore, responsibility for maintenance of the altered or relocated watercourse, including any related appurtenances such as bridges, culverts, and other drainage structures, rests with your community. We may request that your community submit a description and schedule of maintenance activities necessary to ensure this requirement.

COMMUNITY REMINDERS

We based this determination on the 1-percent-annual-chance flood discharges computed in the FIS for your community without considering subsequent changes in watershed characteristics that could increase flood discharges. Future development of projects upstream could cause increased flood discharges, which could cause increased flood hazards. A comprehensive restudy of your community’s flood hazards would consider the cumulative effects of development on flood discharges subsequent to the publication of the FIS report for your community and could, therefore, establish greater flood hazards in this area.

Your community must regulate all proposed floodplain development and ensure that permits required by Federal and/or State/Commonwealth law have been obtained. State/Commonwealth or 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 your State/Commonwealth or community has adopted more restrictive or comprehensive floodplain management criteria, those criteria take precedence over the minimum NFIP requirements.


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We will not print and distribute this LOMR to primary users, such as local insurance agents or mortgage lenders; instead, the community will serve as a repository for the new data. We encourage you to disseminate the information in this LOMR by preparing a news release for publication in your community's newspaper that describes the revision and explains how your community will provide the data and help interpret the NFIP maps. In that way, interested persons, such as property owners, insurance agents, and mortgage lenders, can benefit from the information.

We have designated a Consultation Coordination Officer (CCO) to assist your community. The CCO will be the primary liaison between your community and FEMA. For information regarding your CCO, please contact:

Ms. Juliette Hayes Director, Mitigation Division

Federal Emergency Management Agency, Region IX 1111 Broadway, Suite 1200 Oakland, CA 94607-4052

(510) 627-7211

STATUS OF THE COMMUNITY NFIP MAPS

We will not physically revise and republish the FIRM and FIS report for your community to reflect the modifications made by this LOMR at this time. When changes to the previously cited FIRM panel(s) and FIS report warrant physical revision and republication in the future, we will incorporate the modifications made by this LOMR at that time.


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PUBLIC NOTIFICATION OF REVISION A notice of changes will be published in the Federal Register. This information also will be published in your local newspaper on or about the dates listed below, and through FEMA’s Flood Hazard Mapping website at https://www.floodmaps.fema.gov/fhm/bfe_status/bfe_main.asp

LOCAL NEWSPAPER Name: Las Vegas Review-Journal Dates: March 27, 2019 and April 3, 2019

Within 90 days of the second publication in the local newspaper, any interested party may request that we reconsider this determination. Any request for reconsideration must be based on scientific or technical data. Therefore, this letter will be effective only after the 90-day appeal period has elapsed and we have resolved any appeals that we receive during this appeal period. Until this LOMR is effective, the revised flood hazard determination presented in this LOMR may be changed.


18-09-1695P 102-I-A-C


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DISTANCE1 WIDTH

(FEET)

SECTION

AREA

(SQUARE

FEET)

MEAN

VELOCITY

(FEET PER

SECOND)

REGULATORY

WITHOUT

FLOODWAY

WITH

FLOODWAYINCREASE

1.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

37,706 39,495 40,710 42,110 43,910 45,508 46,055 46,720 47,250 48,610 49,749 50,749 52,010 52,415 52,840 54,075 55,640 57,497 58,072 58,462 59,633 60,832 62,482 64,118 65,505 67,290 69,290

650 261 242 218 183 183 124 184 172 153 222 191 187 237 313 238 13499 99 99 80109 116 134 131 139 145

4,692 2,239 2,181 2,205 1,830 1,516 1,522 1,400 1,229 1,181 1,935 1482 1,683 1,578 1,537 1,526 1,179 1,380 1,304509 738

1,325 1,003 1,246

914 1,604 1,419

4.0 8.4 8.6 8.5

10.2 12.4 12.3 13.3 15.2 15.89.6 9.4 8.2 8.8 8.8 8.9

11.5 9.7 10.2 25.1 17.39.6

12.79.6

13.17.5 8.4

1,670.9 1,677.9 1,680.3 1,683.6 1,688.2 1,691.2 1,694.7 1,695.8 1,696.4 1,702.4 1,710.0 1,712.9 1,718.8 1,720.1 1,721.4 1,725.4 1,729.2 1,732.6 1,732.7 1,732.7 1,739.5 1,745.8 1,755.2 1,760.9 1,765.8 1,772.8 1,783.2

1670.9 1667.9 1680.3 1683.6 1688.2 1691.2 1,694.7 1,695.8 1,696.4 1,702.4 1,710.0 1,712.9 1,718.8 1,720.1 1,721.4 1,725.4 1,729.2 1,732.6 1,732.7 1,732.7 1,739.5 1,745.8 1,755.2 1,760.9 1,765.8 1,772.8 1,783.2

1671.9 1667.9 1680.3 1683.6 1688.2 1691.2 1,694.7 1,695.8 1,696.4 1,702.4 1,710.0 1,712.9 1,718.8 1,720.1 1,721.4 1,725.4 1,729.2 1,732.61,732.7 1,732.7 1,739.5 1,745.8 1,755.2 1,760.9 1,765.8 1,772.8 1,783.2 0.0

1 Stream distance in feet above mouth

ZM

FLOODING SOURCE FLOODWAYBASE FLOOD

WATER-SURFACE ELEVATION(FEET NAVD)

CROSS SECTION

Las Vegas Wash

ZGZHZIZJZKZL

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FLOODWAY DATA

LAS VEGAS WASH

TA

BL

E 5

ZZABCD

G

FEDERAL EMERGENCY MANAGEMENT AGENCY

CLARK COUNTY, NVAND INCORPORATED AREAS

EF

NAVD)FEET (

REVISED DATADATA REVISED BY LOMR EFFECTIVE SEPTEMBER 22, 2016


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Culvert

Channel

Channel

Las Vegas Wash

32

0405


320003

City ofLas Vegas

325276

ZONE AE

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S ARLINGTON ST

CROF

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KANEAVE

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YEW

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LOCUSTWOOD ST

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BABBIT DR

PRES

COTT

ST

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AVE

BEECHGATE AVE

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CARL

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BALLANTINE DR

FRAN

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T

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MONTEBELLO AVE

NEVADA AVE

CALIFORNIA AVE

ARIZONA AVE

CHANTILLY AVEMONTELLO AVE

MARI

ON D

R

STEWART AVE

SCALE

0 500 1,000250Feet

1 inch = 500 feet 1:6,000


0 150 30075Meters



MAP NUMBER


32003C2187F








Zone X

Zone X

Zone X



320003325276

21872187

FF

JOINS PANEL 2190

JOIN

S P

AN

EL 2

195



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SEPTEMBER 22, 2016

REVISEDAREA

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1725

.4

1729.2

Channel

Weir

33

04


320003

ZONE AE

N NE

LLIS

BLVD

CEDAR AVE

AWBURYAVE

COLB

ATH

STE CHARLESTON BLVD

REDE

YE LN

BLUESEA ST

BIG SEA ST

WHITECAP ST

CLAR

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N

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DR

BOXERWOOD DR

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WAY

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SANDSTONE DR

ELAI

NE D

R

CITROEN

ST

SILVERHEART AVE

LABR

ADOR

DR

S CHR

ISTY L

N

SIR G

EORG

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BOTANICAL AVE

WINTERWOODBLVD

N CH

RIST

Y LN

CRAZ

YHOR

SE W

AY

NAVA

JO LN

HOPI

LN

UTE L

N

APAC

HE LN

JOIN

S P

AN

EL 2

187

JOIN

S P

AN

EL 2

190

SCALE

0 1,000 2,000500Feet

1 inch = 1,000 feet 1:12,000


0 300 600150Meters



MAP NUMBER


32003C2195F








Zone X

Zone X

Zone X



320003325276

21952195

FF


City ofLas Vegas

325276

1% ANNUAL CHANCEFLOOD DISCHARGECONTAINED INSTRUCTURE



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CCRFCDgustfront.ccrfcd.org/pdf_arch1/Lomr/18-09-1695P_with_letter.pdfProject Manager Stanley...

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