Resiliency Study (LaWRS) Shona Gibson February 27, 2017 1 - PowerPoint PPT Presentation

Louisiana Watershed Resiliency Study (LaWRS) Shona Gibson February 27, 2017 1

Background  In response to flood events in 2016, watershed analysis and planning became a priority for state and local leaders  Provide data and analysis to: • Aid state and local agencies in developing strategies by watershed • Inform Long Term Recovery Strategy and Planning on a Local and Community level • Prioritize mitigation projects throughout the state • Compiling relevant date from variety of sources  Identify priority watersheds for mitigation projects and for potential storm water management activities/modeling  Coordinate with State and Federal Agencies and local jurisdictions  Develop strategies to reduce risk and increase resiliency based on needs of the state and other stakeholders 2

Watershed assessments: • Provide data driven report and products to aid state in developing strategy to develop funding strategy for federal grant funds. • Comprehensive evaluation of the conditions, issues and unmet needs in areas affected by chronic, severe or episodic flooding. • Describes impacts on infrastructure buildings, population on the river and its watershed. • Evaluates the past and ongoing impacts of flood, storms and climate on people and neighborhoods to illustrate where watershed planning investments can prevent or reduce the disruption and cost of these natural events Watershed assessments are not: • Hydrological or Hydraulic assessment or models on the watershed or any of it’s tributaries 3

What is LaWRS?  A framework to make decisions and guide efforts to protect and restore Louisiana watersheds  A list of “observations”  Focus on flood risk reduction and resilience  Emphasis on communities  Expanded outreach and community engagement 4

Background Proposed Watersheds - 27  17 watersheds affected in March flooding (DR-4263-LA)  15 watersheds affected in August flooding (DR-4277-LA)  27 unique watersheds affected; 5 watersheds affected in both events  USGS flood extents & depth grids used for analysis in March flooding  Region VI’s flood extents & depth grids used for analysis in August flooding 5

4 - Population Louisiana (2010 Census, Act) 4.53 mil 4.68 mil Louisiana (2016 Est.) 3.20 mil (68.4%) Watersheds – 27 (2010 Census) Top 5 • Amite 568.9K • Vermilion 365.3K • Bayou Teche 227.2K • Liberty Bayou-Tchefuncte 207.4K • Bayou Pierre 192.7K 1.56 mil (48.8%) 6

Background Flooded Structures Inside Outside Use SFHA SFHA % Total 4263 4277 4263 4277 Residential 131,714 91.07% 12,099 61,670 18,897 39,048 Non- 1,226 6,637 1,920 3,138 12,921 8.93% Residential Total 13,325 68,307 20,817 42,186 144,635 100% 7

Background Flooded Structures SFHA Depth 4263 4277 0 – 1 ft. 4,798 17,113 1-3 ft. 5,889 26,015 In > 3 ft. 2,638 25,179 Subtotal 13,325 68,307 0 - 1 ft. 11,104 24,640 1 – 3 ft. 7,499 14,690 Out > 3 ft. 2,214 2,856 Subtotal 20,817 42,186 TOTAL 34,142 110,493 8

Stakeholders FEMA Office of DHS Cyber (Office of Infra- DOTD GOHSEP EPA Infra- strucure structure Analysis Protection) (OCIA) EPA Planning Primary Secondary OCD USDA Team USACE USACE Dept. of NOAA CPRA Outreach ( other (NO) Interior districts) 9

Authorities Watersheds 27 Sub-Watersheds 668 Parishes 53 Other Jurisdictions 211 Levee Districts 10 USACE Districts 4 Planning Commissions 8 10

Framework Process 1. A “Framework” (Criteria) was determined The Framework items were rated by importance 2. This Framework was presented to GOHSEP for input on priorities 3. From this input, “ Primary ” and “ Secondary ” framework groups were established 4. Each framework is being assessed on: • What will be displayed (GIS product, charts, narrative, table, etc.) • Components • Reference/source (when and where the information was derived) • Rationale (what is important and how it benefits the stakeholder) • Answer the question, “So What?” 5. Prototype products are being vetted by GOHSEP 11

Process Framework Primary Secondary • % Of Structures Impacted • Emergency Facilities • Land Cover Changes • Geology/Topography • Upstream Watersheds • Wetlands • Population • Water Quality/EPA/Water Wells • NFIP Claims • Economics • IA Applicants • Endangered Species • Levee/Dams/Flood Control • Soils • Transportation • Energy Infrastructure • Channel Conditions • Parks and Recreation • H&H Analysis • Historic Places/Districts • Critical Facilities • Tribal Lands • %of WS in Floodplain • Climate and Precipitation • Previous Disaster Grants (404 & CDBG) • Income Census • Non-Disaster Grant Funding • Building Codes/Freeboard 12

Geospatial Products  A list of geo-products was developed based on the framework criteria. Prototype products are developed for each framework criteria.  GOHSEP approves prototype products which are batched out to GIS assets, to produce products for the balance of the watersheds. 13

GIS Product Lists Louisiana Watershed Resiliency Study (LaWRS) TM 1 = JH GIS Product Lists as of: 170223 TM 2 = CC Description Reqd Compl Bal % Comp Comments Res. TM 1 Watershed/Subwatershed 28 28 0 100.0% Exhibit 4 , Dupage HH SR 2 Snapshot 27 27 0 100.0% Adj Claims as reqd DA/CD SR 3 % of Structures Impacted 60 30 30 50.0% HH 2 4 Land Use Changes 27 0 27 0.0% 2 5 Existing Master Plans/Community Plans 0 0 0 0.0% 2 6 Upstream Wetlands 4 0 4 0.0% 2 7 Population 0 0 0 0.0% Snapshot DA 2 8 NFIP Claims 4263 18 0 18 0.0% 2 8 NFIP Claims 4277 16 0 16 0.0% 2 8 IA Registrations 4263 18 0 18 0.0% 2 8 IA Registrations 4277 16 0 16 0.0% 2 9 Levees / Dams / Flood Control Structuces 27 27 0 100.0% 2 10 Transportation Network 27 27 0 100.0% 2 11 Channel Conditions 27 0 27 0.0% Divided in Cats. 2 12 H&H Studies 27 0 27 0.0% 1 13 Critical Facilities 27 27 0 100.0% 2 14 Emergency Facilities 27 27 0 100.0% DA 2 15 % of Floodplain/Flooding 27 27 0 100.0% 1 15 Social Vulnerability Index 27 27 0 100.0% 1 16 Previous 404 2 1 1 50.0% DA 1 17 Non-Disaster Grants/Other Agency Grants 2 0 2 0.0% DA 1 19 Geology/Topography 28 1 27 3.6% 1 20 Wetlands 27 27 0 100.0% 1 21 Water Quality / EPA / Wells 27 0 27 0.0% 2 22 Economics 0 0 0 0.0% DA 2 23 Endangerd Species 1 1 0 100.0% 1 24 Soils 27 27 0 100.0% 1 25 Energy Infrastructure 27 0 27 0.0% DA 1 26 Pipeline (Petroleum) 1 0 1 0.0% DA 1 27 Wells (Petroleum) 1 0 1 0.0% DA 1 28 Parks & Recreation 27 27 0 100.0% 1 29 Climates and Precipitation 2 2 0 100.0% HH 1 30 Building Codes / Free Board 0 0 0 0.0% 2 31 Census 0 0 0 0.0% 2 14 602 333 269 55.3%

GIS Products 15

GIS Products 16

GIS Products 17

Phased Development Proposed Timeline Phase I Data Collection December January Phase II Task / Deliverables 2017 2016 ` February March March February Phase III Planning for Implementation 2 weeks 2 weeks 2 weeks 2 weeks Finish Analyze Develop Review April Gathering Organize Report Report Data Data 18

Phased Development Proposed Timeline April February February March March 2 weeks 2 weeks 2 weeks 2 weeks 2 weeks 2 weeks 2 weeks 2 weeks 2 weeks Complete Complete Analyze Analyze Developing Developing Review Review Report Gathering Gathering Organize Organize Report Report Report Report Data Data Data Data 19

Outreach • Acadiana Planning Commission (2/6) • USACE (ONGOING) • Red River Valley Association (2/14) • CPRA Briefing – 2017 Louisiana’s comprehensive Master Plan for a Sustainable Coast (2/20) • USGS – Brief on DR-4277 Report Results (2/21) • NOAA – C-Cap Land Use & Land Change for 18/27 Watersheds (1/21) • EPA Outreached to FEMA • LaDOTD - For future projects • FEMA Region VI – Federal Accreditation Status Tracker • Flood Provisions of the International Codes and ASCE 24 (6 workshops, 6 locations, over 400 attendees, 2/7-14) • Office of Cyber Infrastructure Analysis (02/26) • Capital Area Planning Commission — TBD • OEP Directors – (3/13) 20

Outreach/Engagement Strategy (Under Development ) Viewer • Stake Holders • Parishes • Municipalities • Planners • Floodplain Managers Map Journal FEMA’s Geo Platform Story Map (ARCGIS) Survey Visual Resource to Display • Research • Observations 21

Outreach FOR: Community Survey • Parishes • Incorporated Communities Communities to Input Specific Data • House the Data to Access MAP JOURNAL • Accessible For all Jurisdictions (GEO PLATFORM) • Jurisdictions • Planning & Districts • State Public Outreach Tool STORY MAP 22

Survey Form 23

What we need Significant and useful input from local communities, planning districts, levee districts, River Basins, etc. is key to formulate a complete assessment. Input desired:  Areas that flood  Known nuisance flooding  Poor or insufficient drainage issues  Flooding Sources that may need updated engineering and Floodplain Mapping  Planned Drainage Projects  Channel Conditions  Zoning/Land use plans  Infrastructure Plans  Storm water management practices  H&H Studies 24