eng utf8 dataset dataset 2020-06-09 ISO 19139 Geographic Information - Metadata - Implementation Specification 2007 geometryOnly point 10762 4326 EPSG 6.14(3.0.1) 2020-06-09 publication Army Geospatial Center IENC POC

IENC_POC@usace.army.mil

pointOfContact mapDigital A buoy, is a floating object moored to the bottom in a particular place, as an aid to navigation or for other specific purposes. (IHO Dictionary, S-32, 5th Edition, 565). A lateral buoy, is used to indicate the port or starboard hand side of the route to be followed. They are generally used for well defined channels and are used in conjunction with a conventional direction of buoyage. (UKHO NP 735, 5th Edition) The U.S. inland navigation system consists of 8,200 miles of rivers maintained by the Corps of Engineers in 22 states, and includes 276 lock chambers with a total lift of 6,100 feet. The highly adaptable and effective system of barge navigation moves over 625 million tons of commodities annually, which includes coal, petroleum products, various other raw materials, food and farm products, chemicals, and manufactured goods. The shallow draft waterways have many unique characteristics and difficulties over coastal harbor and ocean navigation; river levels can change by over 30 feet in a seasonal cycle, the navigation channel can shift significantly within the river banks, and shifting yet ever present river currents pose constant challenges in these confined waterways. Electronic chart systems can offer significant benefits to vessels including accurate and real-time display of vessel position relative to waterway features, voyage planning and monitoring, training tools for new personnel and integrated display of river charts, radar, and Automatic Identification Systems. Following recommendations by the National Transportation Safety Board, the National Academy of Science and the American Waterways Operators, Congress directed the Corps of Engineers to develop and publish electronic charts for the inland waterways. Development of Inland Electronic Navigational Charts (IENCs) to cover the Mississippi River and tributaries thus began in 2001 with pilot projects on the Atchafalaya River in Louisiana and Lower Mississippi River near Vicksburg, Mississippi. These projects, which involved a combination of in-house and contract activities, were the first efforts to collect and convert inland waterway data, commonly used for river and channel maintenance, into the international S-57 hydrographic data exchange. This highly structured data format is commonly used for electronic chart applications and will be used for Corps IENCs An S-57 database is extracted into an Esri File Geodatabase for publication. This is that geodatabase and it contains 99 feature classes that make up the IENC data. USACE IENC Continental United States place USACE USCG IENC HIFLD Inland Electronic Navigation Charts theme Downloadable Data vector eng utf8 Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 true -95.7268 -79.515135 29.753722 44.98741 This geodatabase feature class is created as part of the publication of the IENC data. It is authoritative from the United States Army Corps of Engineers Inland Electronic Navigation Charts (USACE IENC) as of the date of publication. This data may be updated twice a month. A master feature service containing 92 of the 99 layers as feature services that can be exported and queried can be referenced in the Distribution information section. Note that seven of the services have modified symbology due to feature limitations. They are: DAM_LINE, FERRY, LEVEE_LINE, Overhead_Pipeline, RAILROAD, ROAD_LINE, SUBMARINE_PIPELINE. The six layers that were removed were: Building_Point, Buoy_Special_Purpose, Daymark, Depth_Area, Shoreline_Construction_Area, Shoreline_Construction_Line. Other download options are included in Distribution information. In addition to these options, KML, RSS, and GeoPDF data downloads can be found at: https://ienccloud.us/#DataDownload This page also contains up-to-date alternative geo-enabled formats found in other distribution options as well as an interactive browser map viewer and a viewer that visualizes individual chart coverage. Spelling, capitalization, abbreviation definitions, and formatting in dataset attribution comply with the Encoding Guide of Inland ENC (<http://ienccloud.us/ienc/products/files/documents/IENC%20Encoding%20Guide%20-%20Edition%202.3.6.pdf>). For example: 1) The mandatory source indicator is encoded under the following format (per page 13 of the encoding guide): 2 character country code, 2 character authority code, 5 character source code, identifier (no restriction on number of characters), e.g., (US,U3,SURVY,2001_Hydro_Survey). 2) Abbreviations and capitalization in fields such as but not limited to Object_Name and Information in feature classes including but not limited to DAYMARK, Lateral_Beacon, and LIGHTS reference a standard United States Coast Guard (USCG) Navigation Center entity (<https://www.navcen.uscg.gov/>; a recent light list containing abbreviations can be found at <https://www.navcen.uscg.gov/pdf/lightLists/LightList_V5_2020.pdf>). Additional common abbreviations are included in specific feature class field and supplemental information metadata. To query specific enumerations and definitions not included in this metadata, access an up to date, interactive IENC Feature Catalog at: http://ienccloud.us/ienc/web/s-57/index24.html. File Geodatabase Feature Class ArcGIS Desktop 10.6.1 Build 9270 Army Geospatial Center IENC POC

IENC_POC@usace.army.mil

pointOfContact MB 2.89 Army Geospatial Center IENC POC

IENC_POC@usace.army.mil

pointOfContact Army Geospatial Center IENC POC

IENC_POC@usace.army.mil

pointOfContact MB 131 http://ienccloud.us/ienc/products/files/u37/ienc_master_dataset_gdb/USACE_IENC_Master_Service_gdb.zip Master Geodatabase The IENC Master Geodatabase downloads all 400,000+ features in all charts and datasets to a single geodatabase for offline use of the entire dataset suite. Army Geospatial Center IENC POC

IENC_POC@usace.army.mil

pointOfContact MB 2.89 Users should be aware that the IENCs reflect best available information at the time the data was collected. These data products are subject to change. None (Public Domain Information) None (Public Domain Information) unclassified USCAPCO monthly