NATIONAL HYDROGRAPHY DATASET - LINEAR HYDROGRAPHIC LANDMARKS 1:24K - DECEMBER 2017

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey, U.S. Environmental Protection Agency, USDA Forest Service, Florida Department of Environmental Protection
Publication_Date: 20160426
Publication_Time: Unknown
Title:
NATIONAL HYDROGRAPHY DATASET - LINEAR HYDROGRAPHIC LANDMARKS 1:24K - DECEMBER 2017
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
State of Florida
Online_Linkage: http://www.dep.state.fl.us/gis/datadir.htm
Description:
Abstract:
This data set contains routes representing linear NHD hydrographic landmark features that are not core to the network. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. The data was originally published by the USGS then it is modified by the NHD data steward for Florida (FDEP). When received from FDEP, this data was originally in geodatabase format. When in shapefile format the data loses the network functionality of the geodatabase. Please contact the FDEP if you need the original geodatabase.
Purpose:
The NHD is a national framework for assigning reach addresses to water-related 
entities, such as industrial discharges, drinking water supplies, fish habitat areas, 
wild and scenic rivers. Reach addresses establish the locations of these entities 
relative to one another within the NHD surface water drainage network, much like 
addresses on streets. Once linked to the NHD by their reach addresses, the 
upstream/downstream relationships of these water-related entities--and any 
associated information about them--can be analyzed using software tools ranging 
from spreadsheets to geographic information systems (GIS). GIS can also be used 
to combine NHD-based network analysis with other data layers, such as soils, land 
use and population, to help understand and display their respective effects upon 
one another. Furthermore, because the NHD provides a nationally consistent 
framework for addressing and analysis, water-related information linked to reach 
addresses by one organization (national, state, local) can be shared with other 
organizations and easily integrated into many different types of applications to the 
benefit of all.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19990623
Ending_Date: 20171215
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -87.429040
East_Bounding_Coordinate: -79.872251
North_Bounding_Coordinate: 30.983191
South_Bounding_Coordinate: 24.492815
Keywords:
Theme:
Theme_Keyword_Thesaurus: NONE
Theme_Keyword: Hydrography
Theme_Keyword: Stream / River
Theme_Keyword: Lake / Pond
Theme_Keyword: Canal / Ditch
Theme_Keyword: Reservoir
Theme_Keyword: Spring / Seep
Theme_Keyword: Swamp / Marsh
Theme_Keyword: Artificial Path
Theme_Keyword: Reach Code
Theme:
Theme_Keyword_Thesaurus: NONE
Theme_Keyword: inlandWaters
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: inlandWaters
Place:
Place_Keyword_Thesaurus: U.S. Department of Commerce, 1977, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions (Federal Information Processing Standards 10-3): Washington, D.C., National Institute of Standards and Technology.
Place_Keyword: US
Place_Keyword: Florida
Place_Keyword: FL
Access_Constraints: None
Use_Constraints:
None.  Acknowledgment of the originating agencies would
be appreciated in products derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Earth Science Information Center
Contact_Address:
Address_Type: mailing address
Address:
507 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: 1 888 ASK USGS
Contact_Electronic_Mail_Address: ask@usgs.gov
Hours_of_Service: 0800-1600 Eastern Time
Contact Instructions:
In addition to the address above there are other ESIC offices throughout the country. A full list of these offices is at URL:  http://mapping.usgs.gov/esic/esic_index.html
Data_Set_Credit:
See dataset specific metadata.
Native_Data_Set_Environment:
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4000
Cross_Reference:
Citation_Information:
Other_Citation_Details:
http://nhd.usgs.gov/ http://nhd.usgs.gov/NHD.pdf https://floridadep.gov/dear/watershed-services/content/about-florida-national-hydrography-dataset
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
GeoPlan relied on the integrity of the attribute information within
the original data.
Logical_Consistency_Report:
Points, nodes, lines, and areas conform to topological rules.  Lines intersect only at 
nodes, and all nodes anchor the ends of lines.  Lines do not overshoot or 
undershoot other lines where they are supposed to meet.  There are no duplicate 
lines.  Lines bound areas and lines identify the areas to the left and right of the lines. 
Gaps and overlaps among areas do not exist.  All areas close.
Completeness_Report:
The completeness of the data reflects the content of the sources, which most often 
are the published USGS topographic quadrangle and/or the USDA Forest Service 
Primary Base Series (PBS) map. The USGS topographic quadrangle is usually 
supplemented by Digital Orthophoto Quadrangles (DOQs). Features found on the 
ground may have been eliminated or generalized on the source map because of 
scale and legibility constraints. In general, streams longer than one mile 
(approximately 1.6 kilometers) were collected. Most streams that flow from a lake 
were collected regardless of their length. Only definite channels were collected so 
not all swamp/marsh features have stream/rivers delineated through them. 
Lake/ponds having an area greater than 6 acres were collected. Note, however, 
that these general rules were applied unevenly among maps during compilation. 
Reaches codes are defined on all features of type stream/river, canal/ditch, 
artificial path, coastline, and connector. Waterbody reach codes are defined on all 
lake/pond and most reservoir features. Names were applied from the GNIS 
database.  Detailed capture conditions are provided for every feature type in the 
Standards for National Hydrography Dataset available online through 
http://mapping.usgs.gov/standards/.

This statement is generally true for the most common sources of NHD data. Other 
sources and methods may have been used to create or update NHD data. In some 
cases, additional information may be found in the NHDMetadata table.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Statements of horizontal positional accuracy are based on accuracy statements 
made for U.S. Geological Survey topographic quadrangle maps.  These maps were 
compiled to meet National Map Accuracy Standards.  For horizontal accuracy, this 
standard is met if at least 90 percent of points tested are within 0.02 inch (at map 
scale) of the true position.  Additional offsets to positions may have been introduced 
where feature density is high to improve the legibility of map symbols.  In addition, 
the digitizing of maps is estimated to contain a horizontal positional error of less than 
or equal to 0.003 inch standard error (at map scale) in the two component directions 
relative to the source maps.  Visual comparison between the map graphic (including 
digital scans of the graphic) and plots or digital displays of points, lines, and areas, is 
used as control to assess the positional accuracy of digital data.  Digital map 
elements along the adjoining edges of data sets are aligned if they are within a 0.02 
inch tolerance (at map scale).  Features with like dimensionality (for example, 
features that all are delineated with lines), with or without like characteristics, that 
are within the tolerance are aligned by moving the features equally to a common 
point. Features outside the tolerance are not moved; instead, a feature of type 
connector is added to join the features.

This statement is generally true for the most common sources of NHD data.  Other 
sources and methods may have been used to create or update NHD data.  In some 
cases, additional information may be found in the NHDMetadata table.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Statements of vertical positional accuracy for elevation of water surfaces are based 
on accuracy statements made for U.S. Geological Survey topographic quadrangle 
maps.  These maps were compiled to meet National Map Accuracy Standards.  For 
vertical accuracy, this standard is met if at least 90 percent of well-defined points 
tested are within one-half contour interval of the correct value.  Elevations of water 
surface printed on the published map meet this standard; the contour intervals of 
the maps vary.  These elevations were transcribed into the digital data; the 
accuracy of this transcription was checked by visual comparison between the data 
and the map.
This statement is generally true for the most common sources of NHD data.  Other 
sources and methods may have been used to create or update NHD data.  In some 
cases, additional information may be found in the NHDMetadata table.
Lineage:
Source_Information:
Source_Scale_Denominator: 24000
Type_of_Source_Media: online
Source_Citation_Abbreviation:
USGS
Source_Contribution:
Spatial and Attribute Information
Process_Step:
Process_Description:
In June 2013, the existing Florida NHD100K and NHD 24K as downloaded April 10, 
2013 from the USGS NHD, Hydrologic Units, GNIS alternate names and 
relationships were combined into one file geodatabase for public distribution and 
use. Notable changes to the 24K NHD database since the previous download in 
December 2012 are as follows: Full photo revision to Lake Okeechobee 
(03090201), Hillsborough (03100205) and Alafia (03100204) sub basins; Full photo 
revision to portions of Peace (03100101), Withlacoochee (03100208), 
Choctawatchee Bay (03140102), miscellaneous updates in Big Cypress Swamp 
(03090204) and Everglades (03090202); miscellaneous edits/additions of stream 
gages, dams and other point event features by USGS. The database includes a 
network using the NHD24 NHDFlowline featureclass. The Utility Network Analyst 
tool can be used to trace routes through the network, however please note that if 
you set the results of the trace as selected features and zoom to selected, you may 
zoom to a scale that is outside the NHD24 dependency settings.
Process_Date: 20130601
Process_Step:
Process_Description:
Data updated in ArcSDE/DataMiner and MapDirect. Metadata updated.
Process_Date: 20130824
Process_Step:
Process_Description:
In November 2013, the existing Florida NHD100K and NHD 24K as downloaded 
November 12, 2013 from the USGS NHD, Hydrologic Units, GNIS alternate names 
and relationships were combined into one file geodatabase for public distribution 
and use. Notable edits in the 24K NHD database since the previous download in 
April 2012 were in the following subbasins: Withlacoochee (03100208), Peace 
(03100101), Upper St. Johns (03080101), Kissimmee (03090101), Florida Southeast 
Coast (03090206), Choctawhatchee Bay (03140102), Lower Choctawhatchee 
(03140203) and assorted network improvements made by USGS staff.
Process_Date: 20131101
Process_Step:
Process_Description:
Data updated in ArcSDE/DataMiner and MapDirect. Metadata updated.
Process_Date: 20131208
Process_Step:
Process_Description:
In May 2014, the existing Florida NHD100K and NHD 24K as downloaded May 12, 
2014 from the USGS NHD, Hydrologic Units, GNIS alternate names and 
relationships were combined into one file geodatabase for public distribution and 
use. Notable changes to the 24K NHD database since the previous download in 
November 2013 are as follows: Aerial imagery revision to priority WBIDs ( 
Waterbody IDs provided by DEP Water Assessment Section), other WBIDs and 
network improvements by USGS to Tampa Bay (03100206), Crystal-
Pithlachascotee (03100207), Withlacoochee (03110203), Charlotte Harbor 
(03100103), St. Andrew-St. Joseph Bays (03140101), Vero Beach (03080203), 
Everglades (03090202), Blackwater (03140104), Manatee (03100202), Econfina-
Steinhatchee (03110102), Caloosahatchee (03090205), Perdido (03140106), 
Florida Southeast Coast (03090206), Lake Okeechobee (03090201), Cumberland-
St. Simons (03070203), Santa Fe (03110206), Alapaha (03110202), Aucilla 
(03110103), Lower Ochlockonee (03120003), Cape Canaveral (03080202), Nassau 
(03070205), Upper Suwannee (03110201), Myakka (03100102), Chipola 
(03130012), Pensacola Bay (03140105), Upper St. Johns (03080101), Lower St. 
Johns (03080103), Oklawaha (03080102), Little Manatee (03100203), Waccasassa 
(03110101), Apalachee Bay-St. Marks (03120001), Western Okeechobee Inflow 
(03090103), Northern Okeechobee Inflow (03090102), St. Marys (03070204), 
Daytona-St. Augustine (03080201), Kissimmee (03090101), Lower Suwannee 
(03110205), Big Cypress Swamp (03090204), Peace (03100101), Yellow 
(03140103), . The database includes a network using the NHD24 NHDFlowline 
featureclass. The Utility Network Analyst tool can be used to trace routes through 
the network, however please note that if you set the results of the trace as selected 
features and zoom to selected, you may zoom to a scale that is outside the NHD24 
dependency settings.
Process_Date: 20140512
Process_Step:
Process_Description:
The processes used to create and maintain high-resolution NHD data can be found 
in the table called "NHDMetadata". Because NHD data can be downloaded using 
several user-defined areas, the process descriptions can vary for each download. 
The NHDMetadata table contains a list of all the process descriptions that apply to 
a particular download. These process descriptions are linked using the DuuID to 
the NHDFeatureToMetadata table which contains the com_ids of all the features 
within the download. In addition, another table, the NHDSourceCitation, can also 
be linked through the DuuID to determine the sources used to create or update 
NHD data.
Process_Date: 20140512
Process_Step:
Process_Description:
In October 2014, the existing Florida NHD100K and NHD 24K as downloaded 
October 22, 2014 from the USGS NHD, Hydrologic Units, GNIS alternate names 
and relationships were combined into one file geodatabase for public distribution 
and use. Notable changes to the 24K NHD database since the previous download 
in May 2014 are as follows: Geographic Information Names System (GNIS) specific 
updates, aerial imagery based updates to prioritized Florida DEP Waterbody IDs 
(WBIDs), and/or additional aerial imagery based updates to St. Marys (3070204), 
Nassau (3070205), Upper St. Johns (3080101), Lower St. Johns (3080103), 
Daytona-St. Augustine (3080201), Cape Canaveral (3080202), Vero Beach 
(3080203), Kissimmee (3090101), Big Cypress Swamp (3090204), Caloosahatchee 
(3090205), Florida Southeast Coast (3090206), Crystal-Pithlachascotee (3100207), 
Econfina-Steinhatchee (3110102), Aucilla (3110103), Apalachee Bay-St. Marks 
(3120001), Lower Ochlockonee (3120003), Apalachicola (3130011), New 
(3130013), Apalachicola Bay (3130014), St. Andrew-St. Josephs Bays (3140101), 
Choctawhatchee Bay (3140102), Yellow (3140103), Blackwater (3140104), 
Pensacola Bay (3140105), Perdido (3140106), Perdido Bay (3140107), Lower 
Choctawhatchee (3140203) and Escambia (3140305) sub basins.
Process_Date: 20141022
Process_Step:
Process_Description:
An October 22, 2014 copy of the Florida NHD was obtained from the USGS for 
purposes of updating the Florida Dept. of Environmental Protection Agencies SDE 
data. For this release, a new field called ?Parent_Feature?was added to the 
NHDFlowline featureclass. Using Field Calculator, the ?Parent_Feature? attribute for 
flowline features with FType not equal to Artificial Path were updated to the FType. 
For artificial path flowlines, a series of analyses using the relationship between the 
WBArea_Permanent_identifier field and the Permanent_identifier fields of each of 
the NHDArea and NHDWaterbody featureclasses facilitated the update of the 
Parent_Feature attribute. Several ?select by location? analyses further provided 
updated to the ?Parent_Feature.? Several hundred artificial paths remained after 
exhausting multiple analysis options and were ultimately individually inspected to see 
the relationship between the artificial path and the feature for which it was within.
Process_Date: 20141201
Process_Step:
Process_Description:
Changes in the October 2014 download of the Florida NHD include new and 
updated NHD Point Events. These EventTypes follow the same format as the 
FCodes in the other featureclasses. Added detail has been incorporated for stream 
gages. Stream gages are now listed as being active (with continuous or partial data) 
or inactive. Dams are still included, but like the others, the code has changed. Past 
layer files referencing the NHDPointEvents featureclass will need updated 
symbology to link to the new codes. The layer file used on the FDEP DataMiner 
application has been updated to reflect the updates. New codes are as follows: 
57001 - Stream Gage, Active, Continuous data; 57002 - Stream Gage, Active, 
Partial data; 57003 - Stream Gage, Inactive; 57100 - Dam.
Process_Date: 20141208
Process_Step:
Process_Description:
Data updated in the GIS library
Process_Date: 20150107
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd MS 6520
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Electronic_Mail_Address: GIS.Librarian@dep.state.fl.us
Process_Step:
Process_Description:
In May 2015, the Florida NHD 100K (as of March 25, 2015) and NHD 24K (as of 
March 17, 2015) including Watershed Boundary Dataset Hydrologic Units, GNIS 
alternate names and relationships were combined into one file geodatabase for 
public distribution and use. Notable changes to the 24K NHD database since the 
previous download in October 2014 are as follows: Geographic Information Names 
System (GNIS) specific updates in St. Marys (03070204), Nassau (03070205), 
Lower St. Johns (03080103), Caloosahatchee (03090205), Myakka (03100102), 
Sarasota Bay (03100201), Manatee (03100202), Little Manatee (03100203), 
Hillsborough (03100205), Withlacoochee (03100208), Waccasassa (03110101), 
Upper Suwannee (03110201), Alapaha (03110202), Withlacoochee (03110203), 
Lower Suwannee (03110205), Santa Fe (03110206), Lower Chattahoochee 
(03130004), Chipola (03130012), St. Andrew-St. Joseph Bays (03140101) & Pea 
(03140202) subbasins; Aerial Imagery Revision in Upper St. Johns (03080101), 
Western Okeechobee Inflow (03090103), Lake Okeechobee (03090201), 
Everglades (03090202), Florida Bay-Florida Keys (03090203), Big Cypress Swamp 
(03090204), Florida Southeast Coast (03090206), Alafia (03100204), Aucilla 
(03110103), Lower Suwannee (03110205), Blackwater (03140104), Pensacola Bay 
(03140105) & Perdido (03140106) subbasins. The database includes a network 
using the NHD24 NHDFlowline featureclass. The Utility Network Analyst tool can 
be used to trace connected features through the network, however please note 
that if you set the results of the trace as selected features and zoom to selected, 
you may zoom to and be limited to the maximum scale set the NHD24K and 
NHDFlowline scale dependency settings. If this happens, to see the full set of 
selected features, change both the layer and group settings to ?Show layer at all 
scales?, unclick the NHD 100K and Major NHD 100K group layers, and then zoom 
to the selected features again. Additionally, a new field in the 24K NHD Flowline 
featureclass has been added to support the analysis of Flowline features. The ?
Parent_Feature? identifies the feature type of the flowline in all cases except for 
Artificial Paths. For Artificial paths, the feature type of the polygon feature it resides 
in has been used.
Process_Date: 20150410
Process_Step:
Process_Description:
Data updated in the GIS library.
Process_Date: 20150501
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd MS 6520
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Electronic_Mail_Address: GIS.Librarian@dep.state.fl.us
Process_Step:
Process_Description:
In December 2015, the Florida NHD 100K (as of March 25, 2015) and NHD 24K 
(as of October 22, 2015) including Watershed Boundary Dataset Hydrologic Units, 
GNIS alternate names and relationships were combined into one file geodatabase 
for public distribution and use. Notable changes to the 24K NHD database since 
the previous download in October 2014 are as follows: Edits performed by the 
Florida stewardship team in Alafia (03100204), Big Cypress Swamp (03090204), 
Blackwater (03140104), Crystal-Pithlachascotee (03100207), Econfina-
Steinhatchee (03110102), Everglades (03090202), Florida Bay-Florida Keys 
(03090203), Lake Okeechobee (03090201), Lower Choctawhatchee (03140203), 
Lower Ochlockonee (03120003), Lower Suwannee (03110205), Pensacola Bay 
(03140105), St. Andrew-St. Joseph Bays (03140101), St. Marys (03070204), and 
Upper St. Johns (03080101) subbasins; Edits performed by USGS for attribute 
updates, connectivity checks and updating m-values in Alafia (03100204), Alapaha 
(03110202), Apalachee Bay-St. Marks (03120001), Apalachicola (03130011), 
Aucilla (03110103), Big Cypress Swamp (03090204), Blackwater (03140104), 
Caloosahatchee (03090205), Chipola (03130012), Choctawhatchee Bay 
(03140102), Daytona-St. Augustine (03080201), Escambia (03140305), Florida 
Southeast Coast (03090206), Kissimmee (03090101), Lake Okeechobee 
(03090201), Little Manatee (03100203), Lower Choctawhatchee (03140203), 
Lower Conecuh (03140304), Lower Ochlockonee (03120003), Lower St. Johns 
(03080103), Lower Suwannee (03110205), New (03130013), Oklawaha 
(03080102), Pensacola Bay (03140105), and Perdido (03140106) subbasins. The 
database includes a network using the NHD24 NHDFlowline featureclass. The 
Utility Network Analyst tool can be used to trace routes through the network, 
however please note that if you set the results of the trace as selected features and 
zoom to selected, you may zoom to a scale that is outside the NHD24 dependency 
settings. Additionally, a new field in the 24K NHD Flowline featureclass has been 
added to support the analysis of Flowline features. The ?Parent_Feature? identifies 
the feature type of the flowline in all cases except for Artificial Paths. For Artificial 
paths, the feature type of the polygon feature it resides in has been used. See 
process step for additional information. It was realized that the US Board on 
Geographic Names doesn't recognize Atlantic Ocean along the western side of the 
state. The Florida stewardship team was in the process of removing these polygons 
but not all the edits made it into this original version of the NHD. After downloading 
the October 22, 2015 version of the NHD, the remaining Atlantic Ocean polygons in 
the Gulf were manually removed and currently match the federal database. The 
NHD editing process officially removed the polygons from the national database 
using the USGS tools in November.
Process_Date: 20151116
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: FDEP, DEAR
Contact_Person: Edwin Abbey
Contact_Position: Environmental Manager
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Voice_Telephone: 850-245-8550
Contact_Electronic_Mail_Address: Edwin.Abbey@dep.state.fl.us
Process_Step:
Process_Description:
Data updated in the GIS library.
Process_Date: 20151208
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd MS 6520
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Electronic_Mail_Address: GIS.Librarian@dep.state.fl.us
Process_Step:
Process_Description:
Added NOAA- NFHAP Estuarine Zones layer in the NHD layer published in DataMiner.
Process_Date: 20171215
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd MS 6520
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Electronic_Mail_Address: GIS.Librarian@dep.state.fl.us
Process_Step:
Process_Description:
In April 2016, the existing Florida NHD100K and NHD 24K as downloaded February 
25, 2016 from the USGS NHD, Hydrologic Units, GNIS alternate names and 
relationships were combined into one file geodatabase for public distribution and 
use. Notable edits in the 24K NHD database since the previous download were in 
the following subbasins: Apalachee Bay-St. Marks, Apalachicola Bay, Big Cypress 
Swamp, Charlotte Harbor, Choctawhatchee Bay, Escambia, Everglades, 
Kissimmee, Lower Choctawhatchee, Lower Suwannee, Myakka, St. Andrew-St. 
Joseph Bays, Upper St. Johns, and Western Okeechobee Inflow and assorted 
network improvements made by USGS staff. The database includes a network 
using the NHD24 NHDFlowline featureclass. The Utility Network Analyst tool can 
be used to trace routes through the network, however please note that if you set 
the results of the trace as selected features and zoom to selected, you may zoom to 
a scale that is outside the NHD24 dependency settings.
Process_Date: 20160426
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: FDEP, DEAR
Contact_Person: Edwin Abbey
Contact_Position: Environmental Manager
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Voice_Telephone: 850-245-8550
Contact_Electronic_Mail_Address: Edwin.Abbey@dep.state.fl.us
Process_Step:
Process_Description:
Data updated in SDE and DataMiner. Metadata updated.
Process_Date: 20160506
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd MS 6520
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Electronic_Mail_Address: GIS.Librarian@dep.state.fl.us
Process_Step:
Process_Description:
In October 2016, the existing Florida NHD100K and NHD 24K as downloaded 
September 5, 2016 from the USGS NHD, Hydrologic Units, GNIS alternate names 
and relationships were combined into one file geodatabase for public distribution 
and use. Notable edits in the 24K NHD database since the previous download 
were in the following subbasins: Big Cypress Swamp, Caloosahatchee, Cape 
Canaveral, Daytona-St. Augustine, Econfina-Steinhatchee, Everglades, Kissimmee, 
Lake Okeechobee, Lower Ochlockonee, New, St. Andrew-St. Joseph Bays, Upper 
St. Johns, Oklawaha, Vero Beach and includes assorted network improvements 
made by USGS staff. The database includes a network using the NHD24 
NHDFlowline featureclass. The Utility Network Analyst tool can be used to trace 
routes through the network, however please note that if you set the results of the 
trace as selected features and zoom to selected, you may zoom to a scale that is 
outside the NHD24 dependency settings.
Process_Date: 20161003
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: FDEP, DEAR
Contact_Person: Edwin Abbey
Contact_Position: Environmental Manager
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Voice_Telephone: 850-245-8550
Contact_Electronic_Mail_Address: Edwin.Abbey@dep.state.fl.us
Process_Step:
Process_Description:
Revised data obtained from DEAR as part of the biannual NHD update and 
updated the same in the GIS library. Metadata updated.
Process_Date: 20161209
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd MS 6520
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Electronic_Mail_Address: GIS.Librarian@dep.state.fl.us
Process_Step:
Process_Description:
In January 2017, the existing Florida NHD100K and NHD 24K as downloaded 
January 17, 2017 from the USGS NHD, Hydrologic Units, GNIS alternate names 
(from December 1, 2016) and relationships were combined into one file 
geodatabase for public distribution and use. Notable edits in the 24K NHD 
database since the previous download were in the following subbasins: Florida 
Southeast Coast (03090206), Apalachicola (03130011), St. Andrew-St. Joseph 
Bays (03140101) and assorted network improvements made by USGS staff in St. 
Andrew-St. Joseph Bays (03140101). The database includes a network using the 
NHD24 NHDFlowline featureclass. The Utility Network Analyst tool can be used to 
trace routes through the network, however please note that if you set the results of 
the trace as selected features and zoom to selected, you may zoom to a scale that 
is outside the NHD24 dependency settings.Relationship classes have been created 
to identify additional names that features may be known by through the Variant 
Names table. Relationship classes have also been created to facilitate the 
identification of which waterbody or area a flowline traverses through based on the 
WBAreaPermanent_ID field.
Process_Date: 20170124
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: FDEP, DEAR
Contact_Person: Edwin Abbey
Contact_Position: Environmental Manager
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Voice_Telephone: 850-245-8550
Contact_Electronic_Mail_Address: Edwin.Abbey@dep.state.fl.us
Process_Step:
Process_Description:
Updated data obtained from DEAR and updated the same in the GIS library.
Process_Date: 20170217
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
Contact_Address:
Address_Type: mailing and physical
Address:
2600 Blair Stone Rd MS 6520
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: US
Contact_Electronic_Mail_Address: GIS.Librarian@dep.state.fl.us
Process_Step:
Process_Description:
In June 2017, the existing Florida NHD100K and NHD 24K as downloaded May 1, 
2017 from the USGS NHD, Hydrologic Units, GNIS alternate names (from June 1, 
2017) and relationships were combined into one file geodatabase for public 
distribution and use. Notable edits in the 24K NHD database since the previous 
download were in the following subbasins: Florida Southeast Coast (03090206), 
Withlacoochee (0300208), Little Manatee (03100203), Everglades (03090202), and 
Econfina-Steinhatchee (03110102). In preperation for the NHDPlusHR, 39 basins 
received minor edits to fix USGS Severity 1 and 3 errors. The database includes a 
network using the NHD24 NHDFlowline featureclass. The Utility Network Analyst 
tool can be used to trace routes through the network, however please note that if 
you set the results of the trace as selected features and zoom to selected, you may 
zoom to a scale that is outside the NHD24 dependency settings.Relationship 
classes have been created to identify additional names that features may be known 
by through the Variant Names table. Relationship classes have also been created 
to facilitate the identification of which waterbody or area a flowline traverses through 
based on the WBAreaPermanent_ID field.
Process_Date: 20170623
Process_Step:
Process_Description:
GeoPlan Center downloaded the NHD GeoDatabase from the Florida Department 
of Environmental Protection in March 2018. The data was exported to shapefile 
and defined with the FGDL Albers projection file.

This data was originally produced by U.S. Geological Survey in cooperation with 
U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, 
State and local partners. The Florida Data Stewards (FDEP) then update the data. 

The following poster was used to populate attribute defintions:
http://nhd.usgs.gov/NHD.pdf 

After exporting GDB feature classes to shapefile using ArcGIS 10.3.1, the 
FCODE_DESC field added and calculated based on FCODE domain text values. 
DESCRIPT field added based on FTYPE domain text values. "/" were added between words.
FGDLAQDATE added based on date downloaded from source
Renamed GDB feature class from NHDLine to nhd24line_dec17.shp
Source_Used_Citation_Abbreviation:
GeoPlan
Process_Date: 20180329
Back to Top
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 1382
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 597365
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 8406
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 11040
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 543870
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 0
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 0
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 1531
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 563486
Back to Top
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 24.000000
Standard_Parallel: 31.500000
Longitude_of_Central_Meridian: -84.000000
Latitude_of_Projection_Origin: 24.000000
False_Easting: 400000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.002048
Ordinate_Resolution: 0.002048
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983_HARN
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 0.000025
Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates
Back to Top
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: NHD24LINE_DEC17
Entity_Type_Definition:
NHD24LINE_DEC17.DBF
Entity_Type_Definition_Source:
FDEP
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: Permanent_
Attribute_Definition:
40-char GUID value that uniquely identifies the occurrence of each feature in The National Map.
Attribute_Definition_Source:
USGS
Attribute:
Attribute_Label: FDate
Attribute_Definition:
Date of last feature modification
Attribute_Definition_Source:
USGS
Attribute:
Attribute_Label: Resolution
Attribute_Definition:
Resolution Code for source resolution
Attribute_Definition_Source:
USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition:
Local
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition:
High Resolution
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition:
Medium Resolution
Attribute:
Attribute_Label: GNIS_ID
Attribute_Definition:
Unique identifier assigned by GNIS
Attribute_Definition_Source:
USGS
Attribute:
Attribute_Label: GNIS_Name
Attribute_Definition:
Proper name specific term or expression by which a particular geographic entity is known
Attribute_Definition_Source:
USGS
Attribute:
Attribute_Label: LengthKM
Attribute_Definition:
Length of linear feature Albers Equal Area
Attribute_Definition_Source:
USGS
Attribute:
Attribute_Label: FType
Attribute_Definition:
Three digit integer value unique identifier of a feature type. For a text description of each value see the DESCRIPT field.
Attribute_Definition_Source:
USGS
Attribute:
Attribute_Label: FCode
Attribute_Definition:
Five-digit integer value comprised of the feature type and combinations of characteristics and values. For a text description see FCODE_DESC
Attribute_Definition_Source:
USGS
Attribute:
Attribute_Label: VISIBILITY
Attribute_Definition:
The VisibilityFilter attribute allows for filtering of vector data features at eight approximate scales. A given VisibilityFilter coded-value indicates that the feature is appropriate for use at approximately the defined scale and all larger scales.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition:
Unspecified
Enumerated_Domain:
Enumerated_Domain_Value: 4800
Enumerated_Domain_Value_Definition:
Approximately 1:4,800 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 12500
Enumerated_Domain_Value_Definition:
Approximately 1:12,500 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 24000
Enumerated_Domain_Value_Definition:
Approximately 1:24,000 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 50000
Enumerated_Domain_Value_Definition:
Approximately 1:50,000 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 100000
Enumerated_Domain_Value_Definition:
Approximately 1:100,000 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 150000
Enumerated_Domain_Value_Definition:
Approximately 1:150,000 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 250000
Enumerated_Domain_Value_Definition:
Approximately 1:250,000 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 500000
Enumerated_Domain_Value_Definition:
Approximately 1:500,000 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 1000000
Enumerated_Domain_Value_Definition:
Approximately 1,000,000 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 2000000
Enumerated_Domain_Value_Definition:
Approximately 1:2,000,000 or Larger Scale
Enumerated_Domain:
Enumerated_Domain_Value: 5000000
Enumerated_Domain_Value_Definition:
Approximately 1:5,000,000 or Larger Scale
Attribute:
Attribute_Label: FCODE_DESC
Attribute_Definition:
FCODE description field, which holds a character string that contains all characteristics and values associated with a feature code.
Attribute_Definition_Source:
GeoPlan
Attribute:
Attribute_Label: DESCRIPT
Attribute_Definition:
GeoPlan added field based on FTYPE. Contains text description of feature type.
Attribute_Definition_Source:
GeoPlan
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sink/Rise
Enumerated_Domain_Value_Definition:
Place at which a stream disappears underground or reappears at the surface in a karst area.
Enumerated_Domain:
Enumerated_Domain_Value: Nonearthen Shore
Enumerated_Domain_Value_Definition:
Structure built of stone, brick, concrete, or other building materials that borders a body of water.
Enumerated_Domain:
Enumerated_Domain_Value: Rapids
Enumerated_Domain_Value_Definition:
Area of swift current in a stream or river, characterized by standing waves or by boulders and rocks.
Enumerated_Domain:
Enumerated_Domain_Value: Dam/Weir
Enumerated_Domain_Value_Definition:
Barrier constructed to control the flow or raise the level of water.
Enumerated_Domain:
Enumerated_Domain_Value: Wall
Enumerated_Domain_Value_Definition:
Upright structure of masonry, wood, plaster, or other building material serving to enclose, divide, or protect an area.
Enumerated_Domain:
Enumerated_Domain_Value: Reef
Enumerated_Domain_Value_Definition:
Chain of rocks or coral at or near the surface of the water.
Enumerated_Domain:
Enumerated_Domain_Value: Sounding Datum Line
Enumerated_Domain_Value_Definition:
Line representing the tidal datum to which bathymetric contours are referenced.
Enumerated_Domain:
Enumerated_Domain_Value: Lock Chamber
Enumerated_Domain_Value_Definition:
Enclosure on a waterway used to raise/lower vessels as they pass from one level to another.
Enumerated_Domain:
Enumerated_Domain_Value: Tunnel
Enumerated_Domain_Value_Definition:
Underground or underwater passage.
Enumerated_Domain:
Enumerated_Domain_Value: Flume
Enumerated_Domain_Value_Definition:
Open, inclined, artificial channel constructed of wood, metal, or concrete; generally elevated.
Enumerated_Domain:
Enumerated_Domain_Value: Gate
Enumerated_Domain_Value_Definition:
Structure that may be swung, drawn, or lowered to block an entrance or passageway.
Enumerated_Domain:
Enumerated_Domain_Value: Special Use Zone Limit
Enumerated_Domain_Value_Definition:
Limit of an area used for distinctive types of maritime activities.
Enumerated_Domain:
Enumerated_Domain_Value: Bridge
Enumerated_Domain_Value_Definition:
Structure spanning and providing passage over a waterway, railroad, or other obstacle.
Enumerated_Domain:
Enumerated_Domain_Value: Waterfall
Enumerated_Domain_Value_Definition:
Vertical or near vertical descent of water over a step or ledge in the bed of a river.
Attribute:
Attribute_Label: FGDLAQDATE
Attribute_Definition:
Date GeoPlan acquired data from source.
Attribute_Definition_Source:
GeoPlan
Attribute:
Attribute_Label: AUTOID
Attribute_Definition:
Unique ID added by GeoPlan
Attribute_Definition_Source:
GeoPlan
Attribute:
Attribute_Label: SHAPE.LEN
Attribute_Definition:
Length in meters
Attribute_Definition_Source:
GeoPlan
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Geographic Data Library (FGDL)
Contact_Address:
Address_Type: mailing address
Address:
431 Architecture PO Box 115706
City: Gainesville
State_or_Province: Florida
Postal_Code: 32611-5706
Country: United States
Contact_Electronic_Mail_Address: Web site: http://www.fgdl.org
Contact_Electronic_Mail_Address: Technical Support: http://www.fgdl.org/fgdlfeed.html
Contact_Electronic_Mail_Address: For FGDL Software: http://www.fgdl.org/software.html
Contact_Electronic_Mail_Address: FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html
Contact_Electronic_Mail_Address: Mailing list for FGDL: http://www.fgdl.org/fgdl-l.html
Resource_Description: DOWNLOADABLE DATA
Distribution_Liability:
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
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcGIS Geodatabase
Format_Version_Number: 8.3
File_Decompression_Technique: tar and uncompress
Transfer_Size: 3.712
Technical_Prerequisites:
This data is intended for use with a Geographic Information Systems or Remote Sensing software package.
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20120114
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
Contact_Person: GIS Manager
Contact_Address:
Address_Type: mailing and physical address
Address:
2600 Blair Stone Rd, MS 6520
City: Tallahassee
State_or_Province: FL
Postal_Code: 32399-2400
Country: USA
Contact_Voice_Telephone: n/a
Contact_Electronic_Mail_Address: GIS.Librarian@dep.state.fl.us
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
Back to Top