1. WVU / WV GIS Technical Center
WV Flood Tool and
Risk Assessment for Mitigation Planning
WV GIS Conference
May 3rd – 6th, 2016
Eric Hopkins, GIS Analyst
Kurt Donaldson, GIS Project Manager
West Virginia Flood Tool and Flood Risk Analysis for Mitigation Planning
Xiannian Chen, Kurt Donaldson, Jessica Foster, Eric J. Hopkins*, Franklin Lafone
West Virginia University, West Virginia GIS Technical Center (WVGISTC)
*Presented and point of contact
Abstract:
The West Virginia Flood Tool ( ) provides statewide floodplain management stakeholders with a convenient yet powerful online resource for evaluating flood risk and FEMA flood zone/National Flood Insurance Program (NFIP) status. In addition to the Public (basic) and Expert views, the Flood Tool offers a RiskMAP View focused on flood vulnerability and loss estimation. In 2015 the WVGISTC expanded their efforts into Flood Risk Analysis in support of county and/or regional Multi-Hazard Mitigation Plans (MHMP). Local, county and statewide data are processed using ArcGIS models to produce a current, accurate countywide building inventory and user defined facilities lying within the 1% annual chance floodplain. The updated inventory is then used as input to FEMA Hazus-MH software to generate estimated losses. The revised loss information is then integrated into the Flood Tool for stakeholder use.
Bio
Eric Hopkins earned a Bachelor of Science degree in geology in 1983, and a Master of Arts in geography in 2006, both from West Virginia University. Eric has worked for the West Virginia GIS Technical Center, WVU Department of Geology and Geography, since He has been involved in numerous GIS projects at the Tech Center, and is currently the point of contact and data developer for the West Virginia Flood Tool. He and his wife live in Morgantown, WV.

2. Overview http://MapWV.gov/flood
West Virginia Flood Tool
Development
Functionality
Updates
Flood Risk Assessment & Mitigation Planning
ArcGIS models for processing state, county & local data
Updated building inventory
Loss estimation
Sample report for Berkeley County, WV
Future Directions
Additional Advisory Flood Height (water surface) and Depth data
Visualization
Landslide Susceptibility
Flood Tool development, features and functionality, updates
Tool demo/sample screen shots
Flood Risk Analysis

3. WV Flood Tool http://MapWV.gov/flood
Sponsor: WV DHSEM, FEMA
Begun c. 2006
Purpose: Estimate flood hazard for specific location/property
Status: Latest Javascript version operates on desktop, tablet and mobile devices (scalable)
Local data needed: parcels, leaf-off imagery, topo
Developed in partnership with the WV DHSEM and FEMA
Begun in 2006
Initial ArcIMS application migrated to ArcGIS Flex API, then to the current Javascript API

4. Launch/Resource page
Extensive background information
Brochures & flyers

5. Flood Tool Map with disclaimer and Quick Start Guide
Click OK, I Get It to proceed

6. - Public View at default zoom/extent

7. Search capabilities: 1. USGS Quadrangle; 2. GNIS Place Name; 3
Search capabilities: 1. USGS Quadrangle; 2. GNIS Place Name; 3. Street Address (Site location shown)

8. Search by parcel. Current list of county parcel information available in the WV Flood Tool:
Berkeley, Cabell, Fayette, Hampshire, Jefferson, Kanawha, Monongalia, Putnam, Wayne, Wood
Show Live for up to date list.

9. Public View, Manington, Buffalo Creek
ESRI Steet Map

10. Expert View, Manington, Buffalo Creek
Advisory Flood Depth in Approximate Study areas (Zone A)
BFEs shown in Detailed Study Area

11. Bing Hybrid Imagery Basemap

12. WVGISTC Leaf-Off Imagery Mosaic

13. Buffalo Creek Query, Zone AE / Detailed Study Area, Flood Profile

14. Zone A, Approximate Study Area, Advisory Flood Height (Water Surface), Advisory Depth, Model Data Download

15. RiskMAP View Default Display – Total Loss by Census Block Group

16. RiskMAP View close up of Fairmont
Total loss by Census Tract is shown
Future work will be reported by Census Block or user defined facilities (individual building points).

17. Flood Visualization, Bird’s Eye View
Johnstown, Cambria County, PA 3D flood visualization
Image courtesy Steve Kocsis, GIS Director, Cambria County GIS Center

18. Flood Visualization, Street View
Johnstown, Cambria County, PA 3D flood visualization
Image courtesy Steve Kocsis, GIS Director, Cambria County GIS Center

20. Flood Risk Assessment http://MapWV
Sponsor: WV DHSEM, FEMA
Purpose: Create countywide building inventories with replacement costs for flood risk analysis, loss estimation and hazard mitigation planning
Status: Completed pilot study in Berkeley County
Local Data/Input Needed: Parcels, CAMA, E-911 address points, Building footprints, Feature validation
Flood Risk Assessments performed by the WVGISTC will be incorporated into regional Multi-Hazard Mitigation Plans (MHMP)
Detail: Flood Risk Analysis > Multi-Hazard Risk Assessment (natural & man-made) > MHMP

21. Sample Berkeley County, WV Flood Risk Assessment Report

22. Simplified flow chart representing Risk Assessment process

23. Number of buildings and associated dollar exposure

24. 1% Annual Chance Flood Loss Estimates for Berkeley County and Martinsburg

25. Along with tabular output, spatial results
Along with tabular output, spatial results. Shown here, floodplain, streams, user-defined facilities (UDF) – Building Point Locations

26. Landslide Susceptibility
Comparison of existing work and new methodology yielding higher resolution results
Natural Resources Conservation Service (NRCS) soils analysis based (Soil SURvey Geographic Database – SSURGO)

27. Links ftp://ftp.wvgis.wvu.edu/pub/temp/FEMA/FRA/
Important links related to our work:

28. Questions? http://wvgis.wvu.edu
Kurt Donaldson – GIS Project Manager, Knowledgeable about all projects
(304)
Kevin Kuhn – GIS Analyst, Addressing, Aerial Imagery, Transportation, Elevation, Training (POC)
(304)
Eric Hopkins – GIS Analyst, Flood Tool (POC), Mitigation Planning, Scanning
(304)

30. Expert View at default zoom/extent
New Advisory Flood Height/Depth data now online for Tyler County
Kanawha County AFH and Depth available, download links under construction
Download models now from ftp://ftp.wvgis.wvu.edu

31. WV Site Locator – highest accuracy