Identification_Information: Citation: Citation_Information: Originator: Geological Survey of Alabama (GSA) Publication_Date: 2018 Title: U.S. Waterway Data - Waterway Mile Marker database for Mobile and Baldwin Counties, Alabama developed by the U. S. Army Corps of Engineers/CEWRC, Navigation Data Center. GSA file: (bal_mob_rivermile.shp) Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Tuscaloosa, Alabama Publisher: Geological Survey of Alabama Description: Abstract: This theme, a subset of the Waterway Mile Marker Database maintained by the U. S. Army Corps of Engineers/CEWRC, Navigation Data Center contains mile marker positions within navigable inland waterways and the Gulf Intracoastal Waterway in Baldwin and Mobile Counties, Alabama. Purpose: This dataset was compiled by the GIS program of the Geological Survey of Alabama in support of the "Comprehensive GIS Inventory in Coastal Alabama" as funded by the National Oceanic and Atmospheric Administration(NOAA) through the Coastal Impact Assistance Program (CIAP). Supplemental_Information: The source database was developed by the Navigation Data Center, the Defense Mapping Agency by implementing &.5-minute quadrangles, NOAA nautical charts, and USACE chart books. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 199201 Ending_Date: 2018 Currentness_Reference: Publication Date Status: Progress: Complete Maintenance_and_Update_Frequency: one time Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -88.827653 East_Bounding_Coordinate: -87.138956 North_Bounding_Coordinate: 31.351001 South_Bounding_Coordinate: 30.246628 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: Mile marker Theme_Keyword: mile Theme_Keyword: Waterway Theme_Keyword: navigable Theme_Keyword: marker Theme_Keyword: river Place: Place_Keyword_Thesaurus: none Place_Keyword: United States Place_Keyword: Southeast Place_Keyword: Alabama Place_Keyword: Baldwin Place_Keyword: Mobile Place_Keyword: Gulf Intracoastal Place_Keyword: Intracoastal Access_Constraints: None Use_Constraints: Any hardcopies utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. User specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by Geological Survey of Alabama (GSA). The GSA should be acknowledged as the originator of the data. This data set is to be used as a primary reference source. This is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the originators any authority for the decisions they make. Photographic or digital enlargement of these maps to scales greater than that at which they were originally delineated can cause misrepresentation of the data. If enlarged, the maps will not include the fine detail that would be appropriate for mapping at the large scale. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data. Boundaries of polygons extending into the water (ocean or Great Lakes) should be considered arbitrary. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Geological Survey of Alabama Contact_Address: Address_Type: physical address Address: 420 Hackberry Lane City: Tuscaloosa State_or_Province: AL Postal_Code: 35486 Country: USA Contact_Voice_Telephone: 205-349-2852 Contact_Facsimile_Telephone: 205-349-2861 Contact_Electronic_Mail_Address: gis@gsa.state.al.us Hours_of_Service: Monday-Friday, 8AM-Noon, 1PM-5PM Data_Set_Credit: This data was compiled by the Geological Survey of Alabama using data obtained from the U.S. Army Corps of Engineers Institute for Water Resources Navigation Data Center NDC Publications: https://usace.contentdm.oclc.org/digital/collection/p16021coll2/id/1460/rec/1 Native_Data_Set_Environment: Microsoft Windows 7 Professional (Service Pack 1); ESRI ArcCatalog 10.6.1 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The data were extracted from the reference source and no attribute assessments were performed by the GSA. (See Horizontal_Position_Accuracy for horizontal accuracy) Logical_Consistency_Report: No tests for logical consistency were performed on this data set. Completeness_Report: This theme is considered complete as of October 2, 2018 with no noted updates from time span of source data. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: 7.5-minute quadrangles at 1:24,000 with 1 meter accuracy (80% of data) NOAA nautical charts reflect same accuracy respective to scale (5% of data) USACE district charts books interpolated onto USGS quadrangles with an accuracy of 100 miles (15% of data). Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: N/A Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Army Corp of Engineers, CEIWR-NDC Publication_Date: 2018 Title: U.S. waterway data: National Waterway Network Publication_Information: Publication_Place: Alexandria, Virginia Publisher: U.S. Army Corps of Engineers CEIWR-NDC Source_Scale_Denominator: 150,000 Type_of_Source_Media: CD Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 199201 Ending_Date: 2018 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NDC Vol 10 Source_Contribution: mile markers for navigable waters Process_Step: Process_Description: GSA clipped the original dataset to cover the area with the bounds of Mobile and Baldwin Counties, Alabama. Next, the dataset was reprojected into WGS 1984 Web Mercator Auxilary Sp. Process_Date: 2004 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Geological Survey of Alabama Contact_Address: Address_Type: mailing and physical address Address: 420 Hackberry Lane City: Tuscaloosa State_or_Province: AL Postal_Code: 35486-6999 Contact_Voice_Telephone: 205-349-2852 Contact_Facsimile_Telephone: 205-349-2861 Contact_Electronic_Mail_Address: gis@gsa.state.al.us Hours_of_Service: Monday - Friday 8:00AM - 5:00PM CST Contact_Instructions: Request GIS/Remote Sensing Staff Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 218 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: World Geodetic System of 1984 Ellipsoid_Name: WGS 1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Data Dictionary FIELD TYPE WIDTH DEFINITION 1. LONGITUDE1 DOUBLE 10 MILE MARKER LONGITUDE IN DECIMAL 2. LATITUDE1 DOUBLE 10 MILE MARKER LATITUDE IN DECIMAL 3. RIVER_NUMB INTEGER 2 RIVER NUMBER (2 DIGIT ID NUMBER) 4. MILE INTEGER 4 MILE ALONG RIVERWAY 5. RIVER_CODE TEXT 2 RIVER CODE (2 CHAR RIVER CODE) 6. RIVER_NAME TEXT 35 NAME OF RIVER OR RIVER SEGMENT (From rivermileNDC.txt. Information can also be found at http://www.iwr.usace.army.mil/ndc/data/data1.htm) Entity_and_Attribute_Detail_Citation: U.S. Army Corps of Engineers Institute for Water Resources Navigation Data Center NDC Publications and U.S. Waterway Data: https://usace.contentdm.oclc.org/digital/collection/p16021coll2/id/1460/rec/1 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USACE Institute for Water Resources Navigation Data Center Contact_Address: Address_Type: physical address Address: 7701 Telegraph Road City: Alexandria State_or_Province: VA Postal_Code: 22315-3868 Contact_Voice_Telephone: (703)428-9061 Contact_Facsimile_Telephone: (703)428-6047 Distribution_Liability: Geological Survey of Alabama (GSA) provides these geographic data "as is." GSA makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. GSA further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of GSA, no warranty, expressed or implied, is made by GSA regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the GSA have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data/documentation or arising out of the delivery, installation, operation, or support by GSA. Metadata_Reference_Information: Metadata_Date: 2018 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Geological Survey of Alabama Contact_Address: Address_Type: physical address Address: 420 Hackberry Lane City: Tuscaloosa State_or_Province: AL Postal_Code: 35486 Country: USA Contact_Voice_Telephone: (205) 349-2852 Contact_Facsimile_Telephone: (205) 349-2861 Contact_Electronic_Mail_Address: gis@gsa.state.al.us Hours_of_Service: Monday-Friday, 8AM-5PM 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