Transcript FLOOD STUDY Salem County, NJ FEMA REGION II February 22, 2011 Agenda  Introductions and Roll Call  Objectives  Risk Mapping, Assessment, and Planning (Risk.

FLOOD STUDY
Salem County, NJ
FEMA REGION II
February 22, 2011
Agenda
 Introductions and Roll Call
 Objectives
 Risk Mapping, Assessment, and Planning (Risk MAP)
Program Overview
 Current status of Salem County flood study
 Milestones
 Questions
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Introductions and Roll Call
 FEMA Region II
Project Manager: Paul K. Weberg, PE
Communications / Outreach Support: William McDonnell
Floodplain Management and Insurance Lead: Pat Griggs & Kim Rizzo
Regional Support Center (RSC) Deputy Coordinator: Tolga Yilmaz, CFM, GISP
RSC Outreach Lead: Crystal Smith, CFM
 State – New Jersey Department of Environmental Protection (NJDEP)
Supervising Engineer: Joseph Ruggeri, PE, CFM
Supervising Engineer: John Scordato
Technical Assistance: A. Chris Gould, CFM
 Mapping Partner - RAMPP
Project Manager: Milver Valenzuela, PMP, CFM, GISP
 Local – Salem County & Communities
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Objectives
 Objectives
• To provide an overview of current status of Salem
County’s mapping project status
• To promote community engagement and enhance
capability to effectively manage flood risk
• Questions & Feedback from the communities
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Risk MAP Program Overview
 Risk Mapping, Assessment, and Planning (Risk MAP) is a new
FEMA program that provides communities with flood
information and tools they can use to enhance their mitigation
plans and better protect their citizens
 The Risk MAP program aims to achieve these goals through new
and updated strategies and products that address:
 Elevation data acquisition
 Watershed study approach
 Engineering and mapping
 Risk assessment, mitigation planning support
 Risk communications
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Risk MAP
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NJ Mitigation Plan Update
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Risk MAP Review
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Salem County Flood Study Overview
 Mapping partner to complete Salem coastal and riverine
analysis by mid-2012.
 Preliminary FIS Report & Digital Flood Insurance Rate Map
(DFIRM) panel and database production will be funded in
the near future
 Project Team
• Risk Assessment, Mapping, and Planning Partners (RAMPP), a
joint venture of Dewberry, URS, and ESP
 Tasks
• New Approximate Hydrology & Hydraulics (H&H)
• Redelineation of Detailed Riverines
• Restudy of all coastal hazard zones
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Salem County Flood Study Scope
 Incorporation of approximately 23 miles of detailed riverine
redelineation and 170 miles of approximate riverine
 Restudy of all coastal hazard zones - 20 shoreline miles of
detailed coastal analysis
 All the coastal and riverine analysis will be produced in the
FEMA Countywide format in the North American Vertical
Datum of 1988 (NAVD88)
 NAVD 88 = NGVD 29 – 1.04 feet
Datum Conversion for Salem County
Elevation in
Elevation in
NGVD 29
NAVD 88
897.04’
NGVD 29
895.04’
NGVD 29
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896’
NAVD 88
894’
NAVD 88
Coastal Storm Surge and Overland Wave
Hazard Analysis
 Storm Surge: Analysis of tropical and extratropical
(northeasters) using ADCIRC model and JPM
statistical model
• Topography and bathymetry complete
• ADCIRC mesh is completed
• Statistical analysis of storms nearing completion
• ADCIRC modeling is currently being validated against historical
storms
• Coordinated with Pennsylvania, FEMA Region III
 Overland Wave Hazard Analysis: Analysis of wave
hazards along coastline
• Field reconnaissance complete
• Obstruction features are near completion using GIS
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Salem County Flood Study Affected Panels
• Some of the communities may be covered
with more than one panel
•Paneling scheme created
from 1:24,000 USGS quads
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Salem County – NFIP Policies, Claims,
Repetitive Losses, CRS, CAC & CAV
COMMUNITY
Alloway, Township of
Total
Claims
Since
1978
Number
Total
Total Coverage
of Policies
Premium
Number of
Total Paid
Repetitive
Since 1978
Losses
CRS
Community Community
Assistance Assistance
Contact
Visit
(CAC)
(CAV)
12
$2, 988,700
$11,051
2
$0
0
No
-
1994
416
$65,069,200
$417,156
69
$85,089
3
No
2009
1994
9
$1,841,100
$7,954
0
$0
0
No
-
1994
Elsinboro, Township of
Lower Alloways Creek,
Township of
94
$18,315,400
$79,469
38
$81,418
5
No
2002
1994
82
$14,830,600
$93,628
4
$1,432
0
No
2004
1994
Mannington, Township of
Oldmans, Township of
26
21
$4,693,800
$4,512,300
$34,031
$24,872
2
6
$2,275
$5,940
0
0
No
No
1998
1994
Penns Grove, Borough of
203
$33,086,400
$237,897
119
$825,641
15
No
1997
1994
Pennsville, Township of
949 $158,274,400
$918,330
173
$484,980
19 Yes
2007
2007
Carneys Point, Township of
Elmer, Borough of
Pilesgrove, Township of
6
$1,780,000
$3,367
2
$4,420
0
No
1998
1994
Pittsgrove, Township of
17
$4,064,000
$9,788
2
$12,653
0
No
-
1994
Quinton, Township of
19
$2,946,500
$15,743
1
$4,176
0
No
2006
1994
311
$40,126,600
$307,980
20
$116,680
0
No
2006
1994
11
$2,136,100
$8,655
0
$0
0
No
1995
1994
5
$1,337,000
$4,138
2
$3,281
0
No
-
1994
Salem, City of
Upper Pittsgrove, Township
of
Woodstown, Borough of
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Salem County Flood Study Current Status
 Countywide LiDAR-based terrain has been built from LAS files
provided by USGS (data collected in April, 2008). This represents a
seamless high accuracy elevation model that supports all modeling
and mapping activities.
 Coastal analyses are currently ongoing. Transect (Coastal Cross
Sections) layouts have been defined. Obstructions have been
modeled. Field reconnaissance has been completed.
 Approximate Hydrology and Hydraulics are in advanced stages.
 Redelineation of riverine miles is in advanced stages. Mapping will
be finalized when all other analyses are complete.
 Awaiting response from communities to the letters sent out in
January, 2010 regarding data request
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Local Communities

Contacted each community letting them know about coastal
field reconnaissance and field survey taking place in their
communities in August 18, 2010, and data request in January
6, 2010
 Received response only from Mannington Township
 Responses are required for your input to be considered
Roles & Responsibilities of Local Communities:

Response to the letters sent out in January, 2010
 Flood Risk communications with residents
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Milestones

Next Coordination Call: August, 2011

Coastal Surge completed by: October, 2011

Coastal Overland completed by: January, 2012

Coastal and Riverine Analysis complete by :
Mid 2012
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Recent Activities
 Similar meetings conducted:
•
•
•
•
•
•
•
•
•
•
•
•
Morris: April, 2010
Bergen: June, 2010
Somerset: June, 2010
Essex: July, 2010
Monmouth: August, 2010
Union: August, 2010
Cape May: September, 2010
Passaic: October, 2010
Middlesex: October, 2010
Atlantic: November, 2010
Ocean: December, 2010
Cumberland: February, 2011
 Other project target dates for preliminary maps:
•
Morris and Bergen: June-September 2011
• Rest of the Counties: Early – Mid 2012
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Resources
 FEMA: www.fema.gov
 Floodsmart, the official site of the National Flood Insurance Program
(NFIP): www.floodsmart.gov
 Risk Assessment, Mapping and Planning Partners:
www.RAMPP-team.com
 NFIP Reform: www.fema.gov/business/nfip/nfip_reform.shtm
 New Jersey Department of Environmental Protection - NFIP Coordinator
 New Jersey State Office of Emergency Management
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Questions & Feedback
 www.RAMPP-TEAM.com: PowerPoint Presentation & additional information will be posted
 Next coordination meeting: August, 2011
Contact Information


FEMA Region II
FEMA Regional Support Center (RSC)
Paul Weberg,
Pat Griggs,
Tolga Yilmaz,
212-680-3638
212-680-8523
646-216-3679
[email protected]
[email protected]
[email protected]
NJDEP
John Scordato / Joseph Ruggeri / Chris Gould
NJDEP, Bureau of Dam Safety & Flood Control
Phone: 609-292-2296
Fax: 609-984-1908
Visit NJDEP website: www.nj.gov/dep/floodcontrol
Download Model Ordinances: http://www.nj.gov/dep/floodcontrol/modelord.htm

RAMPP – Mapping Partner
Milver Valenzuela,
703.849.0463
[email protected]
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