U.S. Geological Survey (USGS) unknown 20010700 SHAPE U.S. Geological Survey (USGS) http://www.usgs.gov This dataset contains a point coverage of dams which originally was derived from the national inventory of dams data base (U.S. Army Corps of Engineers, 1982). The coverage includes locations of and selected characteristics of reservoirs and controlled natural lakes that have normal capacities of at least 5,000 acre-feet or maximum capacities of at least 25,000 acre-feet and that were completed as of January 1, 1988. This coverage is intended as a thematic data layer showing the location of dams and certain attributes of the structures. Information contained in the coverage has been used for several applications. Location, size, and owner of structures are depicted on a map of surface-water development (Hitt, 1985). Location and other selected characteristics of structures are listed in table 3 of Ruddy and Hitt (1990). The information was the basis for graphics in two National Water Summary reports. The 1985 National Water Summary shows maps of surface-water development. The 1987 National Water Summary shows graphs of cumulative reservoir storage. This dataset contains a point coverage of dams which originally was derived from the national inventory of dams data base (U.S. Army Corps of Engineers, 1982). The coverage includes locations of and selected characteristics of reservoirs and controlled natural lakes that have normal capacities of at least 5,000 acre-feet or maximum capacities of at least 25,000 acre-feet and that were completed as of January 1, 1988. unknown 1990000 publication date Complete As needed -85.611502 -79.903851 30.711135 25.403805 None inlandWaters structure ISO 19115 Topic Categories structure inlandWaters None Southeast U.S. Southeast United States Florida None 1980s None THE DATA INCLUDED IN FGDL ARE 'AS IS' AND SHOULD NOT BE CONSTRUED AS LEGALLY BINDING. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: http://geoplan.ufl.edu/education.html Florida Geographic Data Library (FGDL) mailing

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Gainesville Florida 32611-5706 FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html Technical Support: http://www.fgdl.org/fgdlfeed.html For FGDL Software: http://www.fgdl.org/software.html Web site: http://www.fgdl.org Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595 USGS unknown Map GeoPlan relied on the integrity of the attribute information within the original data. These data are believed to be logically consistent, although not tested. Geometry appears topologically clean. Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout the transfer, and the chains representing the limits of the file (neatline) are free of gaps. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. (Exception: During the QA/QC process all data is examined and if errors are found and corrections are possible, then data is corrected accordingly. This process is documented in the Process_Step.) Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal polygons are tested for closure. Certain attributes and/or entities, e.g. closure line, convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of 9s; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by a string of 9s. Spatial and attribute properties are believed to be complete although attribute information has been simplified. Geometric thresholds from original data are preserved. No test have been completed for exhaustiveness. Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout the transfer, and the chains representing the limits of the file (neatline) are free of gaps. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. (Exception: During the QA/QC process all data is examined and if errors are found and corrections are possible, then data is corrected accordingly. This process is documented in the Process_Step.) Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal polygons are tested for closure. Certain attributes and/or entities, e.g. closure line, convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of 9s; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by a string of 9s. This data is provided 'as is' and its horizontal positional accuracy has not been verified by GeoPlan This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan U.S. Geological Survey (USGS) unknown Map 0 None unknown 1990000 Ground Conditions USGS Spatial and Attribute Information The process step describes, in general, the process used in the production of data sets. The originating agencies created the original spatial coverage. GeoPlan, during the QA/QC process included the following aspects: (1) Reprojected data to FGDL Albers (2) Set Precision to DOUBLE (3) Set Tolerances to FGDL Standards. (4) DESCRIPT item was added and based on DAMNAME (5) Source_Scale_Denominator was not defined in the original data layer. (6) Dropped extraneous items FIPSST FIPSCNTY STATENUM HUC2 HUC4 HUC6 STATE which were derived from existing items in table. 20000101 Vector Entity point 59 NAD 1983 HARN Florida GDL Albers 24.0 31.5 -84.0 24.0 400000.0 0.0 coordinate pair 0.0001 0.0001 meter D North American 1983 HARN GRS 1980 6378137.0 298.257222101 DATABASE FILE Database File None OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. ETAT_COEDAM_AREA PERIMETER COEDAM_ COEDAM_ID FIPS County FIPS code Unknown Unknown NUM Arbitrary sequence number of dams within each state Unknown Unknown DAMNAME Name of dam Unknown Unknown RESNAME Name of reservoir Unknown Unknown OWNERNAME Name of owner Unknown Unknown OWNERCODE Owner code where: Unknown 2 = U.S. Bureau of Reclamation 3 = U.S. Army Corps of Engineers 4 = Tennessee Valley Authority 5 = Other Federal Agency 6 = Non-Federal Agency SIZECODE Size code where: Unknown 2 = Normal capacity at least 5000 but less than 25000 ac-ft 4 = Normal capacity at least 25000 but less than 50000 ac-ft 6 = Normal capacity at least 50000 ac-ft 8 = Normal cap less than 5000 and maximum cap at least 25000 ac-ft MAXCAP Maximum capacity, in acre-feet Unknown Unknown NORMCAP Normal capacity, in acre-feet Unknown Unknown SURFCAP Capacity used to calculate surface area Unknown Unknown POPNAME Popular name of dam Unknown Unknown HUC Hydrologic Unit Code (see Basins Dataset) Unknown Unknown RIVER Name of river on which dam is built Unknown Unknown YEAR Year completed Unknown Unknown PURP Major purpose/use of dam where: Unknown C = FLOOD CONTROL D = DEBRIS CONTROL H = HYDROELECTRIC I = IRRIGATION N = NAVIGATION O = OTHER P = STOCK/FARM POND R = RECREATION S = WATER SUPPLY HEIGHT Structural height of dam, in fee Unknown Unknown HYDCAP Installed power capacity, in megawatts Unknown Unknown LOCKS Number of navigation locks Unknown Unknown SOURCE Source of changes to file where: Unknown A = COE FILE B = CHANGED BY WRD BEFORE MAP REVIEW C = WRD MAP REVIEW D = NWS 85 REVIEW E = NWS 87 REVIEW F = POST NWS87 FEEDBACK SURFAREA Surface area, in acres Unknown Unknown SURFACODE Surface area code where: Unknown $ = Louisiana, Gazetteer of Louisiana lakes and reservoirs & = Virginia State Water Control Board, Publicly owned lakes in Vi * = Montana, State Water Conservation Projects + = Arkansas State Water Plan, Lakes of Arkansas 2 = North Carolina, Register of dams and dam sites in North Caroli 3 = South Carolina, State water plan report #119 4 = USGS personnel in that state 5 = Michigan Department of Natural Resources 6 = Colorado State Engineer's Office computer printout 7 = Montana Department of Natural Resources 8 = Duke Power Company; information for North and South Carolina = = Arizona Department of Water Resources "?" = UNKNOWN A = Tennessee Valley Authority, Facts about major TVA dams and res B = Water and Power Resources Service, Bureau of Reclamation proje C = The California State Water Project--Current activities and fut D = Dams within the jurisdiction of the State of California F = Fish and Wildlife Service, Inventory of U.S. reservoirs H = New York State Department of Environmental Conservation I = Wisconsin Department of Natural Resources, Wisconsin Lakes K = Oklahoma water atlas L = USGS publications M = Martin and Hanson N = State of Minnesota, Department of Natural Resources, Division O = Gaggiani and others, Hydrology of Area 59, Northern Great Plai Q = Pennsylvania Department of Environmental Resources, State Water Use Data System Computer Pull 4 R = Florida Board of Conservation, Division of Water Resources, Florida Lakes, Part III Gazetteer, Tallahassee, FL 1969 S = Statistical compilation of engineering features on Bureau of Reclamation projects T = Dams and reservoirs in Texas, Texas Water Commission bulletin U = Wolcott, Ernest E., Lakes of Washington Volumes 1 and 2 V = Mussey, O.D., 1948, Major storage reservoirs of Virginia W = Reservoirs in the United States with largest areas as of Jan 1, 1963 as listed in WSP 1838 X = Miscellaneous sources as found by Lisa Arnold Y = Kentucky Natural Resources and Environmental Protection Cabine and restoration assessments of KY lakes, final report, April 1 Z = Martin and Hanson reservoirs for which maximum capacities have changed; used the data from the Corps file STORAT Storage ratio (ratio of usable capacity to average annual runoff) Unknown Unknown STORATCODE Storage ratio code where: Unknown (blank) = No information 1 = Not listed in Martin and Hanson L = Calculated from data in annual reports M = From data in Martin and Hanson DRAINAREA Drainage area, in square miles Unknown Unknown STLINE Flag if dam is on state line Unknown Unknown ALTST Adjacent state FIPS abbreviation Unknown Unknown ALTID Alternate id no.; for 1987 water summary fig.1 graphs Unknown Unknown REV Revision number Unknown Unknown LATDD Latitude in decimal degrees Unknown Unknown LONDD Longitude in decimal degrees Unknown Unknown DESCRIPT Based upon DAMNAME (see above) Unknown Unknown AUTOID SHAPE Feature geometry. ESRI Coordinates defining the features. Operator mailing

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Gainesville Florida 32611-5706 US (352) 3920997, Operator Technical Support: http://www.fgdl.org/fgdlfeed.html Mailing list for FGDL: http://www.fgdl.org/fgdl-l.html For FGDL Software: http://www.fgdl.org/software.html Web site: http://www.fgdl.org FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html 24 Hours / Day Please visit the web site, http://www.fgdl.org, for all questions or concerns. DOWNLOADABLE DATA THE FGDL DATA AS PROVIDED BY CONTRIBUTING ORGANIZATIONS AND ANY PROGRAMMING SOFTWARE CREATED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER (COLLECTIVELY THE 'MATERIALS') ARE COPYRIGHTED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER FOR THE FGDL CONTRIBUTING AGENCIES AND ORGANIZATIONS (THE 'DATA PROVIDERS'). DO NOT REPRODUCE, REDISTRIBUTE OR RESELL THE MATERIALS, OR PROVIDE THE MATERIALS FOR FREE TO CUSTOMERS OR CLIENTS, OR PLACE THE MATERIALS FOR DOWNLOAD ON A WEBSITE. ADDITIONALLY, WHEN USING FGDL DATA OR SOFTWARE IN PROJECTS, MAPS, ETC.; YOU AGREE TO ACKNOWLEDGE THE FGDL AS A DATA SOURCE. THE MATERIALS ARE PROVIDED 'AS IS'. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE QUALITY OR SUITABILITY OF THE MATERIALS, EITHER EXPRESSLY OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO WARRANTIES, GUARANTIES OR REPRESENTATIONS AS TO THE TRUTH, ACCURACY OR COMPLETENESS OF THE DATA PROVIDED BY THE FGDL CONTRIBUTING ORGANIZATIONS. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS. 20200303 Operator at: h2oteam@usgs.gov mailing and physical

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