Post-Flood: Debris, Damages and Data Agenda Importance of Disasters - - PowerPoint PPT Presentation

Regional Floodplain Management Council

Post-Flood: Debris, Damages and Data

Agenda

• Importance of Disasters in 2015 and 2016
• Debris Management Post‐Flood
• FEMA IA, PA, and Hazard Mitigation Opportunities
• Future Opportunities

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Importance of Disaster in 2015 and 2016

2015 Texas Disasters

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DR-4223 Tornados, Straight- line Winds, Flooding May 2015 DR-4245 Tornados, Straight- line Winds, Flooding October 2015 DR-4255 Winter Storms Tornados, Straight- line Winds, Flooding October 2015

2016 Texas Disasters

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DR-4266 Tornados, Straight- line Winds, Flooding March 2016 DR-4269 Tornados, Straight- line Winds, Flooding April 2016 DR-4272 Tornados, Straight- line Winds, Flooding May 2016

Incident Start of Incident Declaration Date

Severe Storms, Tornadoes, Straight-line Winds and Flooding (TX) May 4 May 29 (DR-4223) California Valley & Butte Fires September 9 September 22 (DR-4240) South Carolina Flooding October 1 October 5 (DR-4241) Severe storms, Tornadoes, Straight-line Winds and Flooding (TX) October 22 November 25 (DR-4245) Severe storms, Tornadoes, Straight-line Winds and Flooding (TX) December 26 February 9 (DR-4255) 6

Average time from start of incident to declaration was 24 days.

FEMA PA Timeline

2015

Post-Flood Debris Management

Debris Estimation Post-Flood

• Structures in the

floodplain tell PART

• f the story
• Understand that

there will be debris generated in that area

• Must verify data,

do not rely on maps alone

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Mobilizing Resources

• Debris takes time to

accumulate after a flood

• Pushback from

contracted resources who anticipated a hurricane

• Difficult to manage
• Straight to landfill vs.

DMS

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Volunteers in Disasters

Coordinating with VOADs in Debris Management

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Social Media and Public Information

2008 vs. Today

Staff Turnover

2008 vs. Today

• Debris plan backups
• Lots of turnover since 2008
• Multiple contacts for debris

contractors

• Contingencies and

redundancies in plans

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Don’t rely on one just one person!

FEMA PA, IA and Hazard Mitigation Programs

Hazard Mitigation Assistance

• FEMA Hazard Mitigation Assistance (HMA) Programs

− Hazard Mitigation Grant Program (HMGP) − Pre-Disaster Mitigation Grant (PDM) − Flood Mitigation Assistance (FMA)

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Changes to Pre-Disaster Mitigation Grant Program

• Assist communities with

Pre-disaster mitigation activities

• FEMA revised application

limits

• Increased caps for

projects and planning

• Prioritization for projects

and applicants

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Future Opportunities

Gathering Data for the Disasters

• Substantial Damage Data
• Red Cross CAN
• FEMA Individual Assistance
• United Way 211
• Other Volunteer Organizations

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HUD CDBG-DR Allocations

• 2015 Supplemental Allocation - $300M
• 160M – South Carolina
• 140M – Texas
• $24M – San Marcos
• $66M – City of Houston
• $50M – State of Texas
• 80% must be spent in
• Harris County
• Hidalgo County
• Hays County
• Travis County

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Resiliency Programs

Community Development Block Grant

• One of the longest‐running Department of Housing

and Urban Development (HUD) programs

• Funds local community development activities such

as affordable housing, anti‐poverty programs, and infrastructure development

• Covers some programs that can mitigate debris risks

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TexasRebuilds.Org

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TexasRebuilds.org

2015 Disasters

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TexasRebuilds.org

2016 Disasters

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Opportunity for Mitigation/Resilience Planning

• Case Study – NY Rising Community Recovery

Program

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Project Overview

• The NY Rising Community Reconstruction (NYRCR) Program,

announced by Governor Andrew M. Cuomo in April of 2013, is a more than $650 million planning and implementation process established to provide rebuilding and resiliency assistance to communities severely damaged by Hurricane Irene, Tropical Storm Lee, Superstorm Sandy, and the summer floods of 2013. Drawing

• n lessons learned from past recovery efforts, the NYRCR Program

is a unique combination of bottom-up community participation and State-provided technical expertise. This powerful combination recognizes not only that community members are best positioned to assess the needs and opportunities of the places where they live and work, but also that decisions are best made when they are grounded in rigorous analysis and informed by the latest innovative solutions.

Program Goal

• The goal of the NYRCR Program is to empower

the State’s most impacted communities with the technical expertise needed to develop thorough and implementable reconstruction plans to build physically, socially, and economically resilient and sustainable communities so as to rebuild New York’s communities in a way that will mitigate against future risks and build increased resilience.

Mad Brook Retaining Wall I mprovements

Anecdotal evidence suggests the existing retaining wall has provided flood protection up to the 100‐year event but has begun to fall into

• disrepair. This project

proposes to rehabilitate the existing retaining wall to ensure future protection.

The Effective FEMA model does not include the retaining wall and does not adequately capture the dimensions and profile of the stream This project would prepare a refined model of the watershed and stream to better define instream and bridge replacement projects.

Mad Brook Watershed Study

Public outreach

HEC-RAS Model

• Developed by U.S. Army Corps of Engineers
• Simulate the water flow through a drainage

area

• Predict the Water Surface Elevation (WSE) and

extents of flooding for a given storm event

• E.g., 100-year or 1% annual-chance event
• Assess the effectiveness of flood mitigation

alternatives

• Evaluate and compare potential benefits in

terms of reduced flooding WSE and extents

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Strategy 3: Reduce risks for residents and visitors by addressing stream conditions causing or contributing to repetitive flood damage, increasing protection for property from future flood damage and promoting safe and adequate housing for all residents.

Residential and Commercial Resiliency Improvements Protective Measures Windham Windham Windham Flood mitigation improvements for residential and commercial properties to enhance structural resilience, preserve the tax base and improve safety for

• ccupants. Possible improvements to

include elevation/flood proofing, and voluntary acquisitions/buyouts Business relocation and expansion areas Protective Measures Windham Windham Windham Creation of targeted business relocation and expansion areas – Identify areas

• utside of the flood plain for potential

relocation of at-risk businesses and conduct site improvements, infrastructure extensions and permitting/approvals Senior/Affordable Housing Creation Social/Comm unity Services Windham Windham Windham Creation of senior-oriented and/or affordable housing Stream Projects Protective Measures Windham Hamlet behind WAJ Central School, Center Church etc. or Hensonville - behind homes near Rt. 65 bridge Windham Windham Improve stream conditions to enhance property protection, water quality, and stream functionality. Possible strategies include (1) bank restoration/stabilization/channel restoration of Mad Brook and Batavia Kill, (2) invasive species removal, and (3) debris removal

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