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<resTitle Sync="FALSE">Maryland Shoreline Inventory: Shoreline Structures 2020-2023</resTitle>
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<date>
<pubDate>2020-06-11T00:00:00</pubDate>
<reviseDate>2023-08-15T00:00:00</reviseDate>
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<citRespParty>
<rpIndName>Center for Coastal Resources Management</rpIndName>
<rpOrgName>Virginia Institute of Marine Science (VIMS)</rpOrgName>
<role>
<RoleCd value="006"/>
</role>
<rpCntInfo>
<cntAddress addressType="">
<delPoint>1375 Greate Road, P.O. Box 1346</delPoint>
<city>Gloucester Point</city>
<adminArea>Virginia</adminArea>
<postCode>23062</postCode>
<country>US</country>
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<northBL Sync="TRUE">39.221246</northBL>
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<exDesc>Ground condition at time of imagery
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</dataExt>
<idPurp>To inventory Maryland's tidal shoreline conditions.</idPurp>
<idAbs>&lt;DIV STYLE="text-align:Left;"&gt;&lt;DIV&gt;&lt;DIV&gt;&lt;P&gt;&lt;SPAN&gt;The shoreline inventory files have been generated to support the application of the Maryland Shoreline Stabilization Model (SSM), developed by the Center for Coastal Resources Management (CCRM), Virginia Institute of Marine Science (VIMS), to enhance and streamline regulatory decision making in Maryland. This shoreline inventory includes the features needed as inputs to run the LSSM. &lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;The data developed for the Shoreline Inventory is based on a three-tiered shoreline assessment approach. This assessment characterizes conditions by using observations made remotely at the desktop using high resolution imagery (&lt;/SPAN&gt;&lt;SPAN&gt;most recent MD Six Inch Imagery at time of inventory). The three-tiered shoreline assessment approach divides the shorezone into three regions: 1) the immediate riparian zone, evaluated for land use; 2) the bank, evaluated for height, and natural protection (i.e., marshes and beaches); and 3) the shoreline, describing the presence of shoreline structures for shore protection and recreational purposes.&lt;/SPAN&gt;&lt;/P&gt;&lt;/DIV&gt;&lt;/DIV&gt;&lt;/DIV&gt;</idAbs>
<searchKeys>
<keyword>Shoreline Condition</keyword>
<keyword>Shoreline Structures</keyword>
<keyword>Riparian</keyword>
<keyword>Shoreline Inventory</keyword>
<keyword>Maryland</keyword>
</searchKeys>
<resConst>
<Consts>
<useLimit>&lt;DIV STYLE="text-align:Left;"&gt;&lt;DIV&gt;&lt;DIV&gt;&lt;P&gt;&lt;SPAN STYLE="font-size:12pt"&gt;These data should not be used for jurisdictional permit determinations beyond providing general shoreline condition or status information. These data have not been surveyed to property boundaries.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN STYLE="font-size:12pt"&gt;The Center for Coastal Resources Management (CCRM) at VIMS performs a service by distributing data generated by either CCRM or public agencies, which offer data without restriction or charge. CCCRM assumes no responsibility for data accuracy or precision, metadata completeness or correctness for digital information. CCRM assumes no liability for misuse of any data which may arise as a result of any alteration, conversion, or combination with other data sources. As well, the timeliness and scale of these products must be considered when evaluating appropriate use. &lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN STYLE="font-size:12pt"&gt;The contents of this dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does the EPA endorse trade names or recommend the use of commercial products mentioned in this document.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN /&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN /&gt;&lt;/P&gt;&lt;/DIV&gt;&lt;/DIV&gt;&lt;/DIV&gt;</useLimit>
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<themeKeys>
<keyword>Land use. Land cover, Shoreline conditions, Shoreline structures, Hardened structures, Access structures, Riparian land use, Shoreline inventory</keyword>
</themeKeys>
<placeKeys>
<keyword>Chesapeake Bay, Anne Arundel County, Baltimore City, Baltimore County, Calvert County, Caroline County, Cecil County, Charles County, Dorchester County, Harford County, Kent County, Prince George County, Queen Annes County, St. Marys County, Somerset County, Talbot County, Wicomico County, Worcester County, Maryland</keyword>
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<ProgCd value="004"/>
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<resMaint>
<maintFreq>
<MaintFreqCd value="011"/>
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<idCredit>This project has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement CD-963623-01-1 to the Maryland Department of the Environment for 2019 - 2020; by the United States Environmental Protection Agency State Wetland Program Development Grant CD FAIN 963822-01-0 to the Maryland Department of the Environment for 2020 - 2021; and by the United States Environmental Protection Agency State Wetland Program Development Grant CD FAIN 96390701-0 to the Maryland Department of the Environment for 2021- 2023.</idCredit>
<idPoC>
<rpIndName>Karinna Nunez</rpIndName>
<rpOrgName>Center for Coastal Resources Management, Virginia Institute of Marine Science (VIMS)</rpOrgName>
<rpPosName>CCRM Geospatial Modeling Manager</rpPosName>
<role>
<RoleCd value="007"/>
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<rpCntInfo>
<cntAddress addressType="both">
<city>Gloucester Point</city>
<adminArea>Virginia</adminArea>
<postCode>23062</postCode>
<eMailAdd>karinna@vims.edu</eMailAdd>
<country>US</country>
<delPoint>1375 Greate Road, P.O. Box 1346</delPoint>
</cntAddress>
<cntPhone>
<voiceNum tddtty="">804-684-7273</voiceNum>
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</rpCntInfo>
</idPoC>
<suppInfo>There are three shapefiles associated with the Maryland shoreline inventory database: Maryland_lubc_2020_2023 (land use and bank cover), Maryland_astru_2020_2023 (access points), and Maryland_sstru_2020_2023 (shoreline structures). MD_lubcMaryland_lubc_2020_2023 is a linear shapefile containing data about land use, tree fringe, bank height, and sandspit along the shoreline. Maryland_astru_2020_2023 is a point shapefile with locations of docks, dilapidated docks, boathouses, and private and public boat ramps. Maryland_sstru_2020_2023 is a linear shapefile delineating hard structures in place at the shoreline (bulkhead, dilapidated bulkhead, riprap, wharf, unconventional, debris, marina &lt; 50 slips, marina &gt; 50 slips, jetty, marsh toe revetment, groinfield and breakwaters). </suppInfo>
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<tpCat>
<TopicCatCd value="006"/>
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<tpCat>
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<tpCat>
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<linkage>https://scholarworks.wm.edu/do/search/?q=Maryland%20Shoreline%20Inventory&amp;start=0&amp;context=4347449&amp;facet=subject_facet%3ACCRM%20GIS%20Data</linkage>
<orName>GIS Data: {county name}, Maryland - Shoreline Inventory Data 202x</orName>
<orDesc>Data for each Maryland locality with tidal shoreline can be found on W&amp;M ScholarWorks. Search for the key words Maryland Shoreline Inventory</orDesc>
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<OnFunctCd value="002"/>
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<attrdef Sync="TRUE">Internal feature number.</attrdef>
<attrdefs Sync="TRUE">Esri</attrdefs>
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<udom Sync="TRUE">Sequential unique whole numbers that are automatically generated.</udom>
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<attr>
<attrlabl Sync="TRUE">Shape</attrlabl>
<attalias Sync="TRUE">Shape</attalias>
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<attrdomv>
<udom Sync="TRUE">Coordinates defining the features.</udom>
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</attr>
<attr>
<attrlabl Sync="TRUE">Inventory</attrlabl>
<attalias Sync="TRUE">Inventory</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">200</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<attrdef>Description of imagery used while processing the shoreline inventory. Imagery sources vary for each locality.</attrdef>
<attrdefs>processor</attrdefs>
</attr>
<attr>
<attrlabl Sync="TRUE">County</attrlabl>
<attalias Sync="TRUE">County</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">50</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<attrdef>Name of Maryland County.</attrdef>
<attrdefs>processor</attrdefs>
</attr>
<attr>
<attrlabl Sync="TRUE">Structures</attrlabl>
<attalias Sync="TRUE">Structures</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">50</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<attrdef>Erosion control conditions at the shoreline: breakwater, bulkhead, dilapidated bulkhead, debris, groinfield, jetty, marina &gt;50 slips, marina &lt;50 slips, marsh toe revetment, riprap, unconventional, and wharf.
</attrdef>
<attrdefs>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</attrdefs>
<attrdomv>
<edom>
<edomv>Bulkhead</edomv>
<edomvd>Bulkheads, traditionally, are treated wood or steel “walls” constructed to offer protection from wave attack. More recently, plastics are being used in construction. Bulkheads are vertical structures built slightly seaward of the problem area and backfilled with suitable fill material. They function like a retaining wall, as they are designed to retain upland soil and prevent erosion of the bank from impinging waves.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Dilapidated Bulkhead</edomv>
<edomvd>A bulkhead which has failed due to deterioration from age or storm damage is called a dilapidated bulkhead. In many cases the structure may not be able to perform erosion control functions any longer.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Breakwater</edomv>
<edomvd>Breakwaters are structures that sit offshore and generally occur in a parallel series along the shore. Some breakwaters are attached to the land, referred to as headland breakwaters. Their purpose is to attenuate and deflect incoming wave energy, protecting the fastland behind and between the structures.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Debris</edomv>
<edomvd>Debris represents nonconforming materials and rubble dumped along the shoreline in a haphazard manner. Debris can include tires, bricks, broken concrete rubble, and railroad ties. The inventory maps Unconventional instead of Debris when the material is deliberately placed for shoreline protection in a manner similar to riprap, bulkhead, and other shoreline protection structures.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Groinfield</edomv>
<edomvd>Groins are low profile structures that sit perpendicular to the shore. They can be constructed of rock, timber, or concrete. They are frequently set in a series known as a groinfield, which may extend along a stretch of shoreline for some distance. Unless only a single groin can be detected, this inventory does not delineate individual groins in a groinfield. The groinfield is mapped as one linear feature parallel to the shoreline running along the length of the groin series. When effective, groins will trap sediment moving alongshore.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Jetty</edomv>
<edomvd>Jetty is a structure, generally constructed of stone, which is perpendicular to the shoreline and generally located at the entrance of tidal creeks, tributaries, and marina boat basins. The function of a jetty is to prevent sediment transported alongshore from accumulating in the inlet.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Marinas: &lt; 50 slips and &gt; 50 slips</edomv>
<edomvd>Marinas are denoted as line features in this survey. The infrastructure associated with the marina (e.g. bulkheading, docks, wharfs, etc) are not digitized individually; however, if a boat ramp is present, it will be surveyed separately and coded as a private ramp. Marinas are generally commercial operations; however, smaller scale community docks offering slips and launches for residences are becoming more popular. To distinguish these facilities from commercial marinas, the user could check the riparian land use delineation. If “residential”, the marina is most likely a community facility. The survey estimates the number of slips within the marina and classifies marinas as those with less than 50 slips and those with more than 50 slips.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Marsh Toe Revetment</edomv>
<edomvd>aka Marsh sill) – A low revetment placed offshore from an existing marsh or new planted marsh is classified as marsh toe revetment. The structure may include tidal openings to allow for the easy exchange of free swimming organisms during tidal cycles. Marsh toe revetments are mapped as offshore linear features running along the length of the structure. Marsh toe revetments are distinguished from breakwaters by the linear placement and presence of a tidal marsh instead of a sand beach landward from the structure. The classification can include best professional judgment.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Riprap</edomv>
<edomvd>aka Revetments) - Sloped structures constructed with large, heavy stone or other materials placed against the upland bank for erosion protection. Riprap is mapped as a linear feature along the shoreline. Riprap is also used next to failing bulkheads (bulkhead toe revetments). The inventory maps only riprap when this type of structure is co-located with bulkheads. A similar structure is used to protect the edge of eroding marshes, which is mapped as marsh toe revetment, not riprap.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Unconventional</edomv>
<edomvd>Unconventional features represent segments along the shore where alternative material has been deliberately placed for shoreline protection. Unconventional features may include unique materials placed in a similar manner as riprap or bulkheads, such as engineered pre-cast concrete products. It may also include unique placement or arrangement of conventional materials like riprap that does not fit other structure definitions. The inventory maps "debris" instead of "unconventional" when the material is haphazardly scattered and not providing any shoreline protection.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
<edom>
<edomv>Wharf</edomv>
<edomvd>A wharf is typically described a shore parallel structure where boats are tied. In this inventory, wharfs are generally associated with large industrial, public or commercial facilities.</edomvd>
<edomvds>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</edomvds>
</edom>
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<attr>
<attrlabl Sync="TRUE">Imagery</attrlabl>
<attalias Sync="TRUE">Imagery</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">220</attwidth>
<atprecis Sync="TRUE">0</atprecis>
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</attr>
<attr>
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<attwidth Sync="TRUE">2</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<attrdef>Year of shoreline inventory publication for the given locality.</attrdef>
<attrdefs>processor</attrdefs>
</attr>
<attr>
<attrlabl Sync="TRUE">miles</attrlabl>
<attalias Sync="TRUE">miles_utm18</attalias>
<attrtype Sync="TRUE">Double</attrtype>
<attwidth Sync="TRUE">8</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<attrdef>length of arc segment in miles calculated using the UTM 18 NAD83 projection.</attrdef>
<attrdefs>processor</attrdefs>
</attr>
<attr>
<attrlabl Sync="TRUE">Shape_Length</attrlabl>
<attalias Sync="TRUE">Shape_Length</attalias>
<attrtype Sync="TRUE">Double</attrtype>
<attwidth Sync="TRUE">8</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<attrdef Sync="TRUE">Length of feature in internal units.</attrdef>
<attrdefs Sync="TRUE">Esri</attrdefs>
<attrdomv>
<udom Sync="TRUE">Positive real numbers that are automatically generated.</udom>
</attrdomv>
</attr>
<attr>
<attrlabl Sync="TRUE">mrnaStruc</attrlabl>
<attalias Sync="TRUE">Marina_Structure</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">255</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<attrdef>A structure that is associated with the marina that is present, usually bulkhead or riprap.</attrdef>
<attrdefs>VIMS Shoreline &amp; Tidal Marsh Inventory Glossary, Center for Coastal Resources Management</attrdefs>
</attr>
<attr>
<attrlabl Sync="TRUE">SPStructures</attrlabl>
<attalias Sync="TRUE">Shoreline_Protection_Structures</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">255</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<attrdef>Similar to the Structures field. Exceptions are: Dilapidated Bulkhead = Nonfunctional Bulkhead, and Marsh Toe = Low Profile Sill</attrdef>
<attrdefs>processor</attrdefs>
</attr>
</detailed>
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<mdDateSt Sync="TRUE">20230815</mdDateSt>
<dqInfo>
<dataLineage>
<statement>Maryland Shoreline Inventories were completed over five years beginning in 2019 and ending in 2023. Inventories published in 2020: Anne Arundel County, Calvert County,, Dorchester County, Talbot County.
Inventories published in 2021: Charles County, St. Marys County, Somerset County, Worcester County.
Inventories published in 2022: Baltimore City, Baltimore County, Kent County, Queen Annes County, Wicomico County.
Inventories published in 2023: Caroline County, Cecil County, Harford County, Prince George County.</statement>
<prcStep>
<stepDesc>The shapefiles use a base shoreline from the NOAA Continually Updated Shoreline Product (CUSP) and if necessary modified to reflect the land-water interface (shoreline) based on the latest Maryland 6-inch imagery at the time of the inventory processing.</stepDesc>
<stepDateTm>2016-10-12T00:00:00</stepDateTm>
</prcStep>
<prcStep>
<stepDesc>All processing steps for the shoreline inventory were generated using ArcGIS - ArcMap v10.6.1 or ArcPro v3.0.3 while viewing conditions observed on MD_SixInchImagery and Google Earth Pro (checking dates from 1994 to 2023). For the land use/bank cover shapefile, arcs were split and coded for land use, bank height, bank cover, tree fringe, and presence or absence of sandspit , marsh and beach. For the access structure shapefile, points were placed where structures (dock, dilapidated dock, boathouse, public ramp, and private ramp) are located on the shoreline. For the shoreline structure shapefile, arcs were coded for bulkhead, dilapidated bulkhead, riprap, unconventional, debris, wharf, breakwater, groinfield, jetty, marsh toe revetment, and marina &gt;50 slips and &lt;50 slips.</stepDesc>
<stepDateTm>2019-08-19T00:00:00</stepDateTm>
</prcStep>
<prcStep>
<stepDesc>QAQC was done by a different Scientist and the entire shoreline was reviewed.</stepDesc>
<stepDateTm>2020-01-31T00:00:00</stepDateTm>
</prcStep>
<prcStep>
<stepDesc>As the Shoreline Inventory for a Maryland locality is completed, it is added to this composite feature layer. This Shoreline Inventory represents data processed from 2020 to 2023.</stepDesc>
<stepDateTm>2021-06-01T00:00:00</stepDateTm>
</prcStep>
</dataLineage>
</dqInfo>
<mdContact>
<rpIndName>Center for Coastal Resources Management</rpIndName>
<rpOrgName>Virginia Institute of Marine Science (VIMS)</rpOrgName>
<role>
<RoleCd value="006"/>
</role>
<rpCntInfo>
<cntAddress addressType="">
<delPoint>1375 Greate Road, P.O. Box 1346</delPoint>
<city>Gloucester Point</city>
<adminArea>Virginia</adminArea>
<postCode>23062</postCode>
<country>US</country>
</cntAddress>
</rpCntInfo>
<displayName>Center for Coastal Resources Management</displayName>
</mdContact>
<mdMaint>
<maintFreq>
<MaintFreqCd value="011"/>
</maintFreq>
</mdMaint>
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