FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION TITLE: NATIONAL INVENTORY OF DAMS - FLORIDA 2010 Geodataset Name: USACE_DAMS_2010 Geodataset Type: SHAPEFILE Geodataset Feature: Point Feature Count: 892 |
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GENERAL DESCRIPTION:
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DATA SOURCE(S): U.S. Army Corps of Engineers SCALE OF ORIGINAL SOURCE MAPS: Unknown GEODATASET EXTENT: State of Florida |
FEATURE ATTRIBUTE TABLES:
Datafile Name: USACE_DAMS_2010.DBF
ITEM NAME | WIDTH | TYPE |
OBJECTID
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4 | OID |
Shape
|
4 | Geometry |
DAM_NAME
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38 | String |
DAM_NAME2
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34 | String |
NIDID
|
9 | String |
INSPECTION
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12 | String |
OWNER_TYPE
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18 | String |
OWNER_NAME
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46 | String |
NID_HEIGHT
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8 | Double |
NID_STORAG
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8 | Double |
PRIMARY_PU
|
44 | String |
ALL_PURPOS
|
114 | String |
DAM_TYPE
|
10 | String |
RIVER
|
30 | String |
COUNTY
|
14 | String |
STATE
|
3 | String |
CONG_DIST
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6 | String |
CONG_REP
|
30 | String |
PERMITTING
|
2 | String |
INSPECT_1
|
2 | String |
ENFORCE
|
2 | String |
JURISDIC
|
2 | String |
DAM_LENGTH
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8 | Double |
PRIVATE
|
2 | String |
MAX_DISCHA
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8 | Double |
MAX_STORAG
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8 | Double |
DRAIN_AREA
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8 | Double |
LONGITUDE
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8 | Double |
LATITUDE
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8 | Double |
DAM_DESIGN
|
28 | String |
CORE
|
8 | String |
FOUNDATION
|
10 | String |
EAP
|
4 | String |
SPILL_TYPE
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2 | String |
SPILL_WID
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8 | Double |
INSPECT_2
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8 | Double |
DAM_HEIGHT
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8 | Double |
STRUCTURAL
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8 | Double |
HYDRAULIC
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8 | Double |
SURF_AREA
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8 | Double |
STATE_REG
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2 | String |
STATE_REG1
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48 | String |
YEAR_COMPL
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8 | Double |
STATE_ID
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14 | String |
SECTION
|
20 | String |
YEAR_MODIF
|
6 | String |
OUTLET_GAT
|
5 | String |
VOLUME
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8 | Double |
NUM_LOCK
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8 | Double |
LENGT_LOCK
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8 | Double |
WIDTH_LOCK
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8 | Double |
FED_FUND
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11 | String |
FED_DESIGN
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11 | String |
FED_CONST
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11 | String |
FED_REGULA
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11 | String |
FED_INSPEC
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11 | String |
FED_OPERAT
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11 | String |
FED_OWNER
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11 | String |
FED_OTHER
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11 | String |
SOURCE_AGE
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11 | String |
SUBMIT_DAT
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12 | String |
POL_PARTY
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2 | String |
NORM_STOR
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8 | Double |
OTHER_STRU
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2 | String |
URL_ADDRES
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2 | String |
USNG_FL_1K
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10 | String |
DESCRIPT
|
50 | String |
FLAG
|
5 | String |
FGDLAQDATE
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36 | Date |
AUTOID
|
4 | Integer |
FEATURE ATTRIBUTE TABLES CODES AND VALUES:
Item | Item Description | |
OBJECTID |
Internal feature number. |
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Shape |
Feature geometry. |
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DAM_NAME |
Official name of the dam. No abbreviations used unless a part of the official name. For dams that do not have an official name, the popular name is used. |
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DAM_NAME2 |
Reservoir name or names in common use other than the official name of the dam. Names are separated with semi-colons. |
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NIDID |
Enter the official NID identification number for the dam, known formerly as the National ID. This is a required field, and must have an entry for each dam included in the NID. This field is used as the unique identifier for each dam record. The first two characters of the identity are the state two-letter abbreviation, based on the location of the dam. |
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INSPECTION |
Date of the most recent inspection of the dam prior to the transmittal of the data by the submitting agency. |
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OWNER_TYPE |
The type of owner. |
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OWNER_NAME |
Name of the owner of the dam. |
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NID_HEIGHT |
A calculated field based on the maximum value of field items Dam Height, Structural Height, and Hydraulic Height, providing a single height value to facilitate database queries. |
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NID_STORAG |
A calculated field based on the maximum value of field items Maximum Storage and Normal storage, providing a single storage value to facilitate database queries. |
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PRIMARY_PU |
The primary purpose for which the reservoir is used |
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ALL_PURPOS |
The purposes for which the reservoir is used. |
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DAM_TYPE |
The type of dam. |
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RIVER |
Official name of the river or stream on which the dam is built. If the stream is unnamed, it is identified as a tributary ("TR") to the named river. If the dam is located offstream, the name of the river or stream is entered plus "-OS" or "OFFSTREAM". |
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COUNTY |
Name of the county in which the dam is located. |
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STATE |
The two letter abbreviation for the state in which the dam is located. |
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CONG_DIST |
The congressional district where the dam is located. A calculated field based on the latitude/longitude coordinate of the dam. |
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CONG_REP |
The congressional person representing the district where the dam is located. A calculated field based on the latitude/longitude coordinate of the dam. |
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PERMITTING |
Not defined by source. |
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INSPECT_1 |
Not defined by source. |
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ENFORCE |
Not defined by source. |
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JURISDIC |
Not defined by source. |
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DAM_LENGTH |
Length of the dam, in feet, which is defined as the length along the top of the dam. This length also includes the spillway, powerplant, navigation lock, fish pass, etc., where these form part of the length of the dam. If detached from the dam, these structures should not be included. |
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PRIVATE |
Code indicating whether the dam is a private dam located on federal property.
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MAX_DISCHA |
Number of cubic feet per second (cu ft/sec) which the spillway is capable of discharging when the reservoir is at its maximum designed water surface elevation. |
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MAX_STORAG |
Maximum storage, in acre-feet, which is defined as the total storage space in a reservoir below the maximum attainable water surface elevation, including any surcharge storage. |
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DRAIN_AREA |
Drainage area of the dam, in square miles, which is defined as the area that drains to a particular point (in this case, the dam) on a river or stream. |
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LONGITUDE |
Longitude at dam centerline as a single value in decimal degrees. |
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LATITUDE |
Latitude at dam centerline as a single value in decimal degrees. |
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DAM_DESIGN |
Name of the principal firm(s) or agency accomplishing design of dam and major appurtenant operating features, and major modifications. The original designer is listed first then modification designers (if applicable). The names are separated with semi-colons. |
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CORE |
Code indicating the position, type of watertight member and certainty.
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FOUNDATION |
Code for the material upon which dam is founded, and certainty.
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EAP |
Code, indicating whether the dam has an Emergency Action Plan (EAP) developed by the dam owner. An EAP is defined as a plan of action to be taken to reduce the potential for property damage and loss of life in an area affected by a dam failure or large flood.
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SPILL_TYPE |
Code that describes the type of spillway.
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SPILL_WID |
Width of the spillway, to the nearest foot, available for discharge when the reservoir is at its maximum designed water surface elevation. |
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INSPECT_2 |
Not defined by source. |
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DAM_HEIGHT |
Height of the dam, in feet to the nearest foot, which is defined as the vertical distance between the lowest point on the crest of the dam and the lowest point in the original streambed. |
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STRUCTURAL |
Structural height of the dam, in feet to the nearest foot, which is defined as the vertical distance from the lowest point of the excavated foundation to the top of the dam. |
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HYDRAULIC |
Hydraulic height of the dam, in feet to the nearest foot, which is defined as the vertical difference between the maximum design water level and the lowest point in the original streambed. |
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SURF_AREA |
Surface area, in acres, of the impoundment at its normal retention level. |
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STATE_REG |
Code indicating whether the dam is "State Regulated" under the National Dam Safety Program Act:
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STATE_REG1 |
Name of the primary state agency with regulatory or approval authority over the dam. |
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YEAR_COMPL |
Year when the original main dam structure was completed, optionally followed by code ("E") to indicate an estimated date. If unknown, and reasonable estimate is unavailable, "0000" will be used |
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STATE_ID |
Official State or Agency identification number for the dam. |
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SECTION |
Dam location in terms of Section, Township, and Range. Meridian location is included if it is needed to locate the dam. |
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YEAR_MODIF |
Year (four digit) when major modifications or rehabilitation of dam or major control structures were completed. Major modifications are defined as a structural, foundation, or mechanical construction activity which significantly restores the project to original condition; changes the project s operation; capacity or structural characteristics (e.g. spillway or seismic modification); or increases the longevity, stability, or safety of the dam and appurtenant structures. |
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OUTLET_GAT |
Code(s) that describe the type of spillway and controlled outlet gates, if any:
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VOLUME |
Total number of cubic yards occupied by the materials used in the dam structure. Portions of powerhouse, locks, and spillways are included only if they are an integral part of the dam and required for structural stability. |
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NUM_LOCK |
Number of existing navigation locks for the project. |
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LENGT_LOCK |
Length of the primary navigation lock to the nearest foot. |
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WIDTH_LOCK |
Width of the primary navigation lock to the nearest foot. |
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FED_FUND |
Code identifying which federal agency was involved in funding of the dam. Codes are concatenated if several agencies were involved. |
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FED_DESIGN |
Code identifying which federal agency was involved in the design of the dam. Codes are concatenated if several agencies were involved. |
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FED_CONST |
Code identifying which federal agency was involved in the construction of the dam. Codes are concatenated if several agencies were involved. |
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FED_REGULA |
Code identifying which federal agency is involved in the regulation of the dam. Codes are concatenated if several agencies are involved. |
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FED_INSPEC |
Code identifying which federal agency is involved in the inspection of the dam. Codes are concatenated if several agencies are involved. |
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FED_OPERAT |
Code identifying which federal agency is involved in the operation of the dam. Codes are concatenated if several agencies are involved. |
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FED_OWNER |
Code identifying which federal agency partly or wholly owns the dam. Codes are concatenated if several owners are involved. |
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FED_OTHER |
Code identifying which federal agency is involved in other aspects of the dam. Codes are concatenated if several owners are involved. |
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SOURCE_AGE |
Code identifying the federal or state source agency that has provided the field data on the dam. The code used for a state source agency is the two letter abbreviation for the state; the code used for a federal source agency is the Federal Agency Code defined in the table below. |
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SUBMIT_DAT |
Not defined by source. |
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POL_PARTY |
The political party of the congressional person. A calculated field based on the congressional person and district fields. |
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NORM_STOR |
Normal storage, in acre-feet, which is defined as the total storage space in a reservoir below the normal retention level, including dead and inactive storage and excluding any flood control or surcharge storage. |
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OTHER_STRU |
Not defined by source. |
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URL_ADDRES |
Not defined by source. |
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USNG_FL_1K |
Facility's 1-kilometer United States National Grid (USNG) address. The USNG is an alpha-numeric reference system based on the UTM coordinate system and is similar to the Military Grid Reference System. Use of the USNG ensures a uniform grid mapping and positional reporting system for search and rescue, emergency planning, response, and recovery. |
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DESCRIPT |
Based on the field "Primary_Pu". |
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FLAG |
Denotes if the feature has been visually verified.
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FGDLAQDATE |
The date GeoPlan acquired the data from the source. |
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AUTOID |
Unique ID added by GeoPlan |
FEDERAL AGENCY CODE TABLE Federal Agency Name Federal Agency Code Natural Resources Conservation Serv USDA NRCS Formerly Soil Conservation Serv (SCS) Forest Service USDA FS Rural Housing Service USDA RHS US Army Corps of Engineers CE US Army DOD USA US Navy DOD USN US Air Force DOD USAF Bureau of Reclamation DOI BR Bureau of Indian Affairs DOI BIA Bureau of Land Management DOI BLM Fish and Wildlife Service DOI FWS Geological Survey DOI GS National Park Service DOI NPS Mine Safety and Health Administration DOL MSHA International Boundary and Water Commission IBWC Federal Energy Regulatory Commission DOE FERC Nuclear Regulatory Commission US NRC Tennessee Valley Authority TVA |
This data is provided 'as is'. GeoPlan relied on the integrity of the original data layer's topology |
This data is provided 'as is' by GeoPlan and is complete to our knowledge. |
GeoPlan relied on the integrity of the attribute information within the original data. |
Congress first authorized the US Army Corps of Engineers to inventory dams in the United States with the National Dam Inspection Act (Public Law 92-367) of 1972. The NID was first published in 1975, with a few updates as resources permitted over the next ten years. The Water Resources Development Act of 1986 (P.L. 99-662) authorized the Corps to maintain and periodically publish an updated NID, with re-authorization and a dedicated funding source provided under the Water Resources Development Act of 1996 (P.L. 104-3). The Corps also began close collaboration with the Federal Emergency Management Agency (FEMA) and state regulatory offices to obtain more accurate and complete information. The National Dam Safety and Security Act of 2002 (P.L. 107-310) reauthorized the National Dam Safety Program and included the maintenance and update of the NID by the Corps of Engineers. The most recent Dam Safety Act of 2006 reauthorized the maintenance and update of the NID. The NID consists of dams meeting at least one of the following criteria; 1) High hazard classification - loss of one human life is likely if the dam fails, 2) Significant hazard classification - possible loss of human life and likely significant property or environmental destruction, 3) Equal or exceed 25 feet in height and exceed 15 acre-feet in storage, 4) Equal or exceed 50 acre-feet storage and exceed 6 feet in height. |
The goal of the NID is to include all dams in the U.S. that meet these criteria, yet in reality, is limited to information that can be gathered and properly interpreted with the given funding. The Inventory initially consisted of approximately 45,000 dams, which were gathered from extensive record searches and some feature extraction from aerial imagery. Since continued and methodical updates have been conducted, data collection has been focused on the most reliable data sources, which are the various federal and state government dam construction and regulation offices. |
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 |
None |
The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist. Furthermore, the GIS data available in the FGDL are provided 'as is'. 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 data sources. 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 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 |
USACE National Dam Inventory Homepage: http://geo.usace.army.mil/pgis/f?p=397:12: National Inventory of Dams Fact Sheet: http://www.agc.army.mil/fact_sheet/NID.pdf |
GeoPlan Center Process Steps: After obtaining a username and password, GeoPlan downloaded the Florida subset of the National Inventory of Dams from http://geo.usace.army.mil/pgis/f?p=397:101:644723384651101::NO::: on 9/12/2012. The file was a table in a tab delimited.txt format. The table was converted to a DBF file format and imported into a file geodatabase. The "add XY data" tool was then used to create a spatial layer from the XY coordinates provided in the database using the WGS 1984 geographic coordinate system. This layer was exported as a shapefile and projected to FGDL Albers. The following tasks were undertaken once the shapefile was projected. - Uppercased all records. - Renamed several fields that were truncated during the conversion to shapefile process. - Recalculated the LONGITUDE and LATITUDE fields. - Added and calculated the USNG_FL_1K field. - A FLAG field was added to denote if the feature has been visually confirmed and relocated to the center of the dam structure. - A DESCRIPT field was added based on PRIMARY_PU. - A FGDLAQDATE field was added based on date of download. Each record was then scrutinized using aerial imagery and georectified U.S. Geological Topographic Maps. Points for which the damn could be visually verified were relocated to the center of the damn structure and retained a value of "V" in the "FLAG" attribute. All others retained a value of "NV" and were not spatially relocated. Of the 892 dam structures, 424 features were visually verified and relocated. http://www.sfwmd.gov/portal/page/portal/xrepository/sfwmd_repository_pdf/facility_map_overview.pdf Process Date: 20121114 |
Projection ALBERS Datum HPGN Units METERS Spheroid GRS1980 1st Standard Parallel 24 0 0.000 2nd Standard Parallel 31 30 0.000 Central Meridian -84 00 0.000 Latitude of Projection's Origin 24 0 0.000 False Easting (meters) 400000.00000 False Northing (meters) 0.00000
DATA SOURCE CONTACT (S):
Name: Abbr. Name: Address: Phone: Web site: E-mail: Contact Person: Phone: E-mail: |
USACE - Army Geospatial Center USACE 7701 TELEGRAPH RD. ALEXANDRIA, VA 22315 |
Name: FLORIDA GEOGRAPHIC DATA LIBRARY Abbr. Name: FGDL Address: Florida Geographic Data Library 431 Architecture Building PO Box 115706 Gainesville, FL 32611-5706 Web site: http://www.fgdl.org Contact FGDL: Technical Support: http://www.fgdl.org/fgdlfeed.html FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html For FGDL Software: http://www.fgdl.org/software.html