Louisiana Purpose of the Procedure Flood insurance studies search for geospatial data during prescoping and scoping tasks. If needed data are not available, studies might fund the collection of new data and would like to know about other organizations that might share in these costs. Detailed information about the role geospatial data coordination plays in studies is in the Geospatial Data Coordination Implementation Guide, which is available at , and in Scoping Guidelines: Pre-scoping and the Scoping Meeting, which is available through the Regional Management Center (RMC). Resources developed through FEMA’s geospatial data coordination activities provide information about data and contacts for organizations that have geospatial data that cover large areas (like states) in which many studies are interested. Studies can avoid wasting time with dead-end searches and cold calls by starting with these proven sources of information. One resource is this Geospatial Data Coordination Procedure. It outlines sources of geospatial data and contact information, preferences for base map data and state geospatial participation in studies, and other useful information for the State. If you have questions about this procedure or other geospatial data coordination resources, contact the geospatial data coordination lead in your Regional Management Center: Roberto E. Ramirez, CFM, Geospatial Data Coordination Lead Regional Management Center 6 940-783-4122 Roberto.ramirez@mapmodteam.com We appreciate the help of those who reviewed this document, in particular Joe Holmes, IT Geographic Manage Office of Management and Finance Louisiana Department of Environmental Quality (225) 219-3348 joe.holmes@la.gov Craig Johnson, Director Louisiana Geographic Information Center Phone: 225-578-3479 cjohnson@lsu.edu Date Procedure discussed: February 16, 2007 Default Flood Hazard Base Map for the State The default base map for flood hazard maps for the State is 2004 Statewide Digital Ortho Quarter Quads. Geospatial Data Coverage Find below information about and links to statewide (and Federal agencies’ national) geospatial datasets. The list is provided to save time during pre-scoping and scoping activities when building a list of candidate geospatial datasets available for the study; it is not a prescription of datasets that must be used in a flood insurance study. Major State Holdings Orthophotos Dataset name: Digital Ortho Photography Data currentness: Statewide 1998 & Feb. 2004, Dec. 2005 (Coastal Flight) Accuracy/Scale: 1:12,000 Ground sample resolution: 1 meter Horizontal datum: NAD 83 Fee associated? No Available for redistribution? Yes Dataset source: http://atlas.lsu.edu/ Dataset contact: Pat O’Neil and Larry Handley at NWR/USGS at 337-266-8699, pat_oneil@usgs.gov Notes: Full Coverage for State Available for 1998 and 2004. Coverage also is available for 2005 for areas affected by hurricanes Katrina/Rita; sometimes referred to as the coastal flight, the coverage was primarily south of Interstate 10. Transportation (roads, railroads, and airports) Dataset name: DOTD’s State Maintained Highways, Teleatlas Commercial dataset (local roads) Data currentness: Varies, Commercial data updated every 6 months Accuracy/Scale: Varies, 1:24000 Horizontal datum: NAD 83 Fee associated? No Available for redistribution? State data – Yes, Commercial data - No Are road names part of the dataset? No - state data. Yes – licensed data Dataset source: Louisiana Dept. of Transportation and Development (DOTD) Dataset contact: Dr. Jim Mitchell, LA DOT, at 225-379-1881, jimmitchell@dotd.la.gov Notes: Hydrography (rivers, streams, lakes, and shorelines) Dataset name: Louisiana NHD Data currentness: Varies with the age of the quad it was taken from. Accuracy/Scale: 1:24,000 Horizontal datum: NAD 83 Fee associated? No Available for redistribution? Under development, completed units available for redistribution Are hydrography names part of the dataset? Yes, from the Geographic Names Information System Dataset source: USGS at http://nhd.usgs.gov Dataset contact: Joe Holmes, Louisiana Dept. of Environmental Quality, (225) 219-3348, joe.holmes@la.gov Notes: Commercially available statewide hydrography layer available from Teleatlas. Political boundaries (county, municipal) Dataset name: Parish boundaries Data currentness: current Accuracy/Scale: 1: 24,000 Horizontal datum: NAD 83 Fee associated? No Available for redistribution? Yes, for governmental agencies Dataset source: - Louisiana Dept. of Transportation and Development (DOTD) Dataset contact: Dr. Jim Mitchell, LA DOT, at 225-379-1881, jimmitchell@dotd.la.gov Notes: Downloadable and ArcIMS website. Publicly owned lands (national, state, and local parks, forests, etc) Dataset name: SLABS (State Lands & Buildings), Nature Conservancy Dataset Data currentness: Current, varies Accuracy/Scale: Varies Horizontal datum: NAD 83 Fee associated? No Available for redistribution? Yes Dataset source: SLABS – Louisiana State Lands Office, Nature Conservancy – DW&F Will be on the 2007 State DVD. Dataset contact: SLABS – Marty Beasley (State Land Office), Nature Conservancy – Doug Albert (DW&F) Notes: SLABS – updated regularly, some boundaries disputed. Public land survey system (PLSS) (township and section lines) Dataset name: PLSS Data currentness: varies with the currentness of 1:100,000 DLG Accuracy/Scale: 100K Only Horizontal datum: NAD27 Fee associated? No Available for redistribution? Yes Dataset source: State Lands Office Dataset contact: Marty Beasley, State Lands Office Notes: State Lands Office has a more comprehensive set of PLSS data acquired from Tobin Aerial Surveys. These data are not available for distribution. Cadastral (parcels) Dataset name: Varies by parish (county) Data currentness: Varies by parish (county) Accuracy/Scale: Varies by parish (county) Horizontal datum: NAD 83 Fee associated? No, with a couple exceptions Available for redistribution? Only a handful of parishes have their cadstral data on the web. Dataset source: Available from Parish Assessor, see the Louisiana Assessors Association website at http://louisianaassessors.org/ for the contact list. Dataset contact: Celeste Moss at LA Tax Comm. 225-925-7830 x 210 CMoss@latax.state.la.us and Marty Beasley at State Lands Office 225-342-4455, marty.beasley@la.gov Notes: Approximately half of Louisiana Assessors have digital cadastral data, but fewer than six have those data on a public website available for download. Extraterritorial jurisdiction (ETJ) boundaries Does not exist as a geospatial data layer Terrain (elevation) Dataset name: LIDAR data Data currentness: 1999 to the present Accuracy/Scale: Full coverage at 30m DEM’s and partial coverage at 5m DEM’s Vertical datum: NAVD 88 Fee associated? No Available for redistribution: Yes Dataset source: http://atlas.lsu.edu/ Dataset contact: David Gisclair at LOSCO, 225-219-5816, dgisclair@lus.edu Notes: Statewide coverage will be available by 2009. Currently 2,211 quarter quads completed out of 3,200 quads statewide. Southern half of the state has full coverage. Data Distribution Process for State Data Louisiana Geographic Information Center (LAGIC) at http://lagic.lsu.edu/; Craig Johnson, Director. State data is public and no licensing is required. Federal Nationwide Geospatial Data Holdings Information about nationwide holdings and programs of Federal agencies is available from the Mapping Information Platform web site at . Finding and Accessing Other Existing Geospatial Data Find below information about and links to ways of searching for additional geospatial data available for the State. These capabilities can be useful for finding geospatial data other than the statewide and Federal data listed above, including those of special governments, counties and parishes, municipalities, tribes, universities, and other organizations. Clearinghouses and Inventories for the State Atlas: The Louisiana Statewide GIS at http://atlas.lsu.edu/ The LOSCO Data Catalog at http://lagic.lsu.edu/loscoweb/ The Louisiana Geographic Information Center at http://lagic.lsu.edu/ National Digital Orthophoto Program (NDOP) and National Digital Elevation Program (NDEP) Tracking Systems These systems allow the search of orthophoto and elevation project information entered by federal and other organizations. To access the NDOP system, go to the NDOP web site at and follow the link “Project Tracking.” For the NDEP system, go to the NDEP web site at and follow the link “Project Tracking.” TED Query Tool This tool provides access to information about Federal, state, and local government agency and private sector data holdings gathered by the Census Bureau. It is available through the geospatial data coordination lead at the Regional Management Center. Geospatial One-Stop Geospatial One-Stop, available at , provides access to geospatial data from many sources. Two parts of the site that should be investigated are the “data categories” for existing data and the “marketplace” for data that are planned or in-work and for potential partners for new data collection activities. Working with People Useful State and Federal Contacts The main contacts for the State’s geospatial activities and Federal agencies’ representatives in State are available on the Mapping Information Platform web site at https://hazards.fema.gov/contacts/statecontacts/contacts.asp?page=LA Additional useful contacts for the State can be found at http://lagic.lsu.edu/links.asp. Involving the State’s Geospatial Coordinator in Flood Studies The state has strong involvement with FEMA on Pre-Scoping efforts related to identifying base map and terrain data suitable for flood mapping purposes. State Coordination Process for Building Geospatial Partnerships The Louisiana Geographic Information Systems Council (LGISC) was created by an act of the Louisiana legislature in 1995, to promote geospatial data sharing and data coordination. See http://www.doa.state.la.us/lgisc/. Finding Local Geospatial Contacts Local contacts, including those from special government districts (for example, a regional planning commission); counties, parishes, or equivalent governments; tribes, municipal governments; and other organizations (for example, local universities) also have geospatial data that can help a flood insurance study. Contact information is available from the FEMA archive and web searches at government link portals such as . The state maintains a statewide GIS contacts list in the following formats: a. Web Accessible Contact or URL information for list: http://lagic.lsu.edu/links.asp The levels of government in the list are: a. Municipal b. County/Parish c. State The State has strong involvement with FEMA in the area of collecting LiDAR data on a statewide basis, suitable for floodplain mapping. The State has regional planning commissions/councils of government. Provide Feedback on This Procedure When you find information in this Procedure or in other FEMA or State resources that are outdated, please tell the geospatial data coordination lead in the Regional Management Center what was wrong and the correct information (if you know it). Use the contact information for the lead listed in the section Purpose of the Procedure. The lead will use your feedback to update this Procedure.