1 May 2013
Silver Jackets Quarterly Meeting
Minutes
1:05 pm- Meeting Started
1:05 pm- Bryan Koon, Introduction
Agencies Represented: USACE, FEMA Region IV, FHA, FDOT, FDEM, Natural Conservation
Service, WMD, DOH, (Southwest, South Florida, St Johns, Suwannee, and Northwest)
1:10 pm- Joy Duperault, Introduction for Guest Speaker, John Dorman
1:15 pm- Presentation from Mr. John Dorman, who is the Program Director of Floodplain Mapping for
NC Department of Public Safety.
Basic Information
John Dorman presented the NC risk management Frame work. Armed with over 200 slides and access to
the NC Flood Risk Information System website (http://fris.nc.gov/fris/Home.aspx ) John provided an
excellent view of what his organization can offer Florida. The Flood Risk Information System (FRIS)
contains digitally accessible flood hazard data, models, maps, risk assessments and reports that are
database driven. This site also provides geospatial base map data, imagery, LiDAR / elevation data, along
with hydraulic and hydrologic models that is available for download and use. Florida can get started
using existing GIS data and or the FEMA toolkit which was described as readily available and without
cost.
This presentation included slides covering the topics of; Risk management framework, IT infrastructure,
floodplain mapping enabling legislation and funding. The NC Division of EM is the lead agency for
coordination of information and resources for risk management which is funded with a $6.20 fee
collected by register of deeds.
NC is collecting GIS framework data from across the state, including all of hazards data. Vulnerability
data was described as the holy grail of data for finding risk. These notes, project proposals and John
Doorman’s slide show are to be posted under the meeting date at the following website;
http://www.floridadisaster.org/Mitigation/silverjacket/meetingarchive.htm
Presentation notes follow;
Integrated Hazard Risk Management Objectives
Acquisition/ Generation: acquired and leveraged statewide spatial framework data with help of partners
-Total cost of LIDAR data was $27 million with help from those partners
-Topo-bathymetric model for the entire state (.25 to .5 mile offshore is available)
-Statewide building footprints
-Finished floor elevations (used with truck with laser sensor along the road to collect
information on building, $17-20 per structure)
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-Conflation of parcel data to footprints (information including occupancy, building value, year
built, square footage)
-Put the conflation information, field information and HAZUS information together for website
-Shadow parcel methodology as well to include information on buildings that do not exist yet
-Critical infrastructure and what are they interdependent to
-Mobile LIDAR road data and aerial fusion
-Is better data beneficial? It costs lots of money but what is the actual value to citizens?
-Edgecombe, Macon, New Hanover, Durham were pilot counties for HAZUS vs. IHRM
and IHRM is MUCH more accurate. Better data is more accurate and worthwhile.
-Shows area to truly mitigate towards
-HAZUS is wildly off with estimates of damage
-Biggest difference is WHERE the actual damage is
- Information on the natural hazards (over dozen including sea level rise)
Transition: Moves from paper maps to completely online and the program generates information
automatically, which is much more cost and time efficient.
-Engineering TSDN, floodway data, flood profiles, survey, risk
-Demonstration deliverables are accomplished for North Carolina
-iRisk and FRIS are all met through this a geodatabase design
-Flood and Risk databases which contain all the information and support maps
-Cost efficient to have digital production, would reduce 14.7%, 12.2% and 2.6% for every single
option. No matter what option, you will be saving money.
Analysis: Using the information for applications and get more accurate information.
-Can find information down to the building level to get information on disasters
Incorporation: Using different sources to best find solutions.
-Enterprise Risk includes:
-FRIS (Insurance, Risk) IRIS (Mitigation Action Plan), iRisk (flood, drought, dam, other
hazards plans), NC SPARTA (real time intelligence)
-FRIS has a
-Integrated sea level rise up to one meter and with high tide up to Hurricane Fran, you can
associate what will be a ten-year event with roads, infrastructure, etc. that will be affected
Expansion: Hoping to expand information
- Adding onto a state is relatively small cost and easy to do
-Alabama and Virginia were $60,000 to $70,000 respectively for whole state
-Virginia has two people for entire state, they get a local copy of data and it’s loaded into NC’s
overall system
-States are the ones who maintain the information
-Looking for participation from other states, like Florida
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Silver Jackets Quarterly Meeting
Questions and Answers:
Q: Did Virginia just do flood hazard?
A: Yes, the most essential hazard for now.
Q: Who owns the mapping truck?
A: Mapping contractors own the truck. Each is on five year stints and they also have sub-contractors.
Everyone who surveys is contracted.
Q: How much has the building data collection cost?
A: $1.6 million total, but $400-500 thousand so far for North Carolina. Information collection is only for
buildings in the 100-year flood zone.
Q: Does the state have any role in parcel data collection? Or just merging information from counties?
A: There is no standard database for counties, so NC has to convert data to a compatible system. This is
something NC hopes to standardize one day.
Q: Can the States increase sea level rise? Do you have the ability to manipulate the magnitudes of
surge?
A: Flood levels are 10-25-50-100-500 year levels and you can adjust sea level rise by 20-40-50-80-100
centimeters or add historic storms to make it higher. You can manipulate it to make it higher.
Q: Where are the costs for Alabama and Virginia? Onetime costs or annual?
A: There is a one-time cost to populate information to database. Florida would be around $75,000 one
time and $1,000 a year after that for maintenance. States can update whenever they want to as well,
whether it comes from WMDs, FDEM, etc. North Carolina will input the information for the state.
Q: When you get the building footprint information did you do property appraisers versus collecting
building areas themselves?
A: Some counties already had building footprints so that was updated easily with new information.
Q: What other methods were considered besides mobile mapping units for finished floor elevations?
A: Collection from LIDAR was too out of date because it was every ten feet, but it was better to collect it
through new the new terrestrial elevation mapping.
Q: How did the mobile unit actually get information?
A: It collected first finished floors, but it’s not survey grade. However, it is close enough to work for this
purpose. Charlotte County used elevation certificates and those were options for other counties.
Q: Is everything tied to a parcel number?
A: All of the information associated with that building is included and you could do a lot of different
analyses based on the solution.
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Silver Jackets Quarterly Meeting
Q: Is Florida interested in this system?
A: Yes, that is why this presentation was arranged today with all of Silver Jacket organizations.
2:40 pm: Break
2:50 pm: Dave Apple and Royce Tipton, USACE with Silver Jackets Information
Update on Pilot Projects
-SWIFT: Lots of good progress discussed with upper leadership, getting approval and will be moving
forward soon.
-High Water Mark: has been submitted and up for review
-Inland Effects of Sea Level Rise for Florida: has been submitted and up for review
-Competing against approximately 60 different national projects
-Another cycle in the fall will open, in case these don’t work out or there are new proposals
Other Recent Events
-USACE has been assisting City of Live Oak for unique flooding issues
-Big interest within Georgia basin for this project
-A need in rural areas to gather better data and models
-Silver Jackets meeting in Valdosta
-Planning assistance study for flooding issues in Valdosta, GA
-Suwannee River Basin watershed study is being looked into
-Georgia wants to coordinate with Florida Silver Jackets since these areas are so close
-Want to get this meeting moving forward, who needs to be involved with this?
-If you would like to be involved or know someone who should be involved, let Dave or Bill
know.
3:20 pm: Meeting Adjourned
Next Meeting: Early August in Tallahassee, Florida (exact time and location TBA)
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