70439 Data Set Published / External 37232 MarineCadastre Project Completed 2023-08-14 Ship wrecks and obstructions in the ocean have long been a hazard to navigation and construction, and a point of interest to archeologists, recreational divers, fisherman, educators and explorers. Locating hazardous wrecks and obstructions is part of the ongoing NOAA charting process. The exact position of many wrecks is difficult to determine because of changes in the environment, varied survey methods, and human error. Some wrecks are intentionally placed in the ocean to serve as artificial reefs or for disposal. Others pose a health and environmental threat from their cargo. Ownership and control over wrecks and obstructions is governed by a collection of state and federal regulations, the Abandoned Shipwreck Act, National Historic Preservation Act, and the National Marine Sanctuaries Act. These data are a synthesis of two sources: the NOAA Office of Coast Survey's 2016 Automated Wreck and Obstruction Information System (AWOIS), and the NOAA Electronic Navigational Charts (ENC). Not included were those records that were clearly identified as natural features such as rocks, shoals, and trees. Features are recorded as either a wreck, wreck area, obstruction, or unknown. To support ocean planning activities pursuant to the Executive Order Regarding the Ocean Policy to Advance the Economic, Security, and Environmental Interests of the United States, the Energy Policy Act, the National Environmental Policy Act, the Rivers and Harbors Act, and the Coastal Zone Management Act. Bureau Code: 006:48, Program Code: 006:055 Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT Theme ISO 19115 Topic Category oceans Theme ISO 19115 Topic Category planningCadastre Theme ISO 19115 Topic Category transportation Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA Theme coastal Theme planning Spatial Exclusive Economic Zone Spatial Outer Continental Shelf Spatial Territorial Sea Office for Coastal Management Charleston SC Data Set None Planned Map (digital) objectCategory, objectName, positionQuality, yearSunk, sourceRecord, sourceDate, dataSourceName, comment sourceRecord key for ENC sources: 1) ENCHWPT = 1:5,000 to 1:50,000 wreck point 2) ENCHOPT = 1:5,000 to 1:50,000 obstruction point 3) ENCHWA = 1:5,000 to 1:50,000 wreck area 4) ENCAWPT = 1:50,000 to 1:150,000 wreck point 5) ENCAOPT = 1:50,000 to 1:150,000 obstruction point 6) ENCAWA = 1:50,000 to 1:150,000 wreck area https://www.marinecadastre.gov/about/disclaimer.html NOAA Office of Coast Survey, NOAA Office for Coastal Management Point of Contact 2018-06 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Publication Date -178.4 179.3 71.4 -14.4 Discrete 2023-08-01 publication date No Yes No No No No No No Yes 41941 No No Geographic 2D EPSG:4269 NAD83 North American Datum 1983 GRS 1980 6378137 298.257222101 1 Geodetic Latitude Lat degree north 1 Geodetic Latitude Lat degree north 2 Geodetic Longitude Lon degree east 2 Geodetic Longitude Lon degree east Unclassified For coastal and ocean planning https://marinecadastre.gov/data/ Marine Cadastre Data Registry Microsoft Windows, ArcGIS Pro, Azure SQL Untested Multiple records at slightly different locations may exist in a small number of cases for a single wreck or obstruction. This can occur when two or more sources are used, and the sources do not include sufficient detail to identify the feature. This can also occur when a single wreck or obstruction is mapped at multiple time frames using different survey methods and technology. Compiled to meet 30 meters horizontal accuracy at 95% confidence level Untested These data are logically consistent Automated Wreck and Obstruction Information System Organization NOAA Office of Coast Survey Originator 2016-01-01 https://www.nauticalcharts.noaa.gov/data/wrecks-and-obstructions.html Position and attribute values for wrecks and obstructions NOAA Electronic Navigational Charts Organization NOAA Office of Coast Survey Originator 2023-08-01 https://encdirect.noaa.gov/arcgis/rest/services/encdirect DangersP(30) > Harbor.Obstruction_point(33) DangersP(30) > Harbor.Wreck_point(36) DangersA(153) > Harbor.Obstruction_area(156) DangersA(153) > Harbor.Wreck_area(158) DangersP(30) > Approach.Obstruction_point(36) DangersP(30) > Approach.Wreck_point(39) DangersA(158) > Approach.Obstruction_area(161) DangersA(158) > Approach.Wreck_area(163) 1 1) Acquire primary sources 2) Normalize the data structure 3) Transform polygon features to a polygon centroid point feature 4) Remove duplicate values from the ENC Approach class when there was co-occurrence within a 100-meter range in the Harbor class 5) Remove characters from the COMMENT field identified as, special, formatting, reserved, and unnecessary white space 6) Standardize all unknown, blank and null-like values to a consistent format 7) Standardize all character fonts to uppercase 8) Remove features clearly identified as natural 9) Amend the OBJECTCATEGORY field when values in the COMMENT field indicate a specific category 10) MERGE the source data into a single point feature class 11) Optimize field type and field size settings 2023-08-09T00:00:00 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource gov.noaa.nmfs.inport:70439 Daniel Martin 2023-08-10T13:53:20 Jesse Brass 2026-04-07T13:18:00 2026-03-25 Office for Coastal Management OCM 1002 Public No No 2019-04-25 1 Year 2020-04-25