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20221005
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Maryland Shoreline Inventory: Access Structures 2020
2020-06-11T00:00:00
Comprehensive Coastal Inventory, Center for Coastal Resources Management
Virginia Insitute of Marine Science (VIMS)
1375 Greate Road, P.O. Box 1346
Gloucester Point
Virginia
23062
US
1
-76.713483
-75.765462
39.207665
38.220750
Ground condition at time of imagery
To inventory Maryland's tidal shoreline conditions.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The shoreline inventory files have been generated to support the application of the Living Shoreline Suitability Model (LSSM), 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. </SPAN></P><P><SPAN>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 (MD Six Inch Imagery 2016/2017) . 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.</SPAN></P></DIV></DIV></DIV>
Shoreline Condition
Shoreline Structures
Riparian
Shoreline Inventory
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN /></P><P><SPAN>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.</SPAN></P><P><SPAN /></P><P><SPAN>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. </SPAN></P><P><SPAN /></P><P><SPAN>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. </SPAN></P></DIV></DIV></DIV>
Land use. Land cover, Shoreline conditions, Shoreline structures, Hardened structures, Accesss structures, Riparian land use, Shoreline inventory
Choptank River, La Trappe Creek, Island Creek, Tred Avon River, Miles River, Tuckahoe Creek, Wye River, Little Choptank River, Chesapeake Bay, Anne Arundel County, Calvert County, Dorchester County, Talbot County
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.
Karinna Nunez
Comprehensive Coastal Inventory, Center for Coastal Resources Management, Virginia Insitute of Marine Science (VIMS)
GIS Analyst
1375 Greate Road, P.O. Box 1346
Gloucester Point
Virginia
23062
karinna@vims.edu
US
804-684-7273
There are three shapefiles associated with the Maryland shoreline inventory database: MD_lubc (land use and bank cover), MD_astru (access points), and MD_sstru (shoreline structures). MD_lubc is a linear shapefile containing data about land use, tree fringe, bank height, bank cover, and spit along the shoreline. MD_astru is a point shapefile with locations of docks, dilapidated docks, boathouses, and private and public boat ramps. MD_sstru is a linear shapefile delineating hard structures in place at the shoreline (bulkhead, dilapidated bulkhead, riprap, wharf, unconventional, debris, marina < 50 slips, marina > 50 slips, jetty, marsh toe revetment, groinfield and breakwaters).
File Geodatabase Feature Class
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MD_astru_Yr3_5Localities_wm
Feature Class
0
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
PNTSTRUC
PNTSTRUC
String
50
0
0
Structures that allow access to the water. Access structure types: Dock, Dilapidated Dock, Boathouse, Private Ramp and Public Ramp.
Structures that allow access to the water. Access structure types: Dock, Dilapidated Dock, Boathouse, Private Ramp and Public Ramp.
Dock / Pier
In this survey, a dock or pier is a structure, generally constructed of wood, which is built perpendicular or parallel to the shore. These are typical on private property, particularly residential areas. However, there are exceptions where they are used in working waterfront communities, and may be disconnected from the shore. In general docks provide access to the water, a mooring for vessels, and a venue for recreational activities. They are mapped as point features. Pier length is not surveyed.
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Dilapidated Dock
A pier which has failed due to deterioration from age or storm damage is classified as a dilapidated pier. The remnants of this structure may be originaly pilings only.
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Private Ramp
Boat ramps are used to launch vessels of all types. They are usually constructed of concrete, but wood and gravel ramps are also found. Point identification of boat ramps does not discriminate based on type, size, material, or quality of the launch. This inventory attempts to distinguish, when possible, private versus public ramps. Ramps located in privately owned, commercial marinas and residential communities are classified as private
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Public Ramp
Boat ramps are used to launch vessels of all types. They are usually constructed of concrete, but wood and gravel ramps are also found. Point identification of boat ramps does not discriminate based on type, size, material, or quality of the launch. This inventory attempts to distinguish, when possible, private versus public ramps. Ramps located in privately owned, commercial marinas and residential communities are classified as private.
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Boathouse
A boathouse is considered any covered structure alongside a dock or pier built to cover a boat. They include true “houses” for boats with roof and siding, as well as awnings that offer only overhead protection. Since nearly all boathouses have adjoining piers, piers are not surveyed separately, but are assumed. Boathouses may be difficult to see in aerial photography.
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Community Dock
In this survey, a dock or pier is a structure, generally constructed of wood, which is built perpendicular or parallel to the shore. These are typical on private property, particularly residential areas. However, there are exceptions where they are used in working waterfront communities, and may be disconnected from the shore. Community Piers are commonly longer piers with fewer than 50 slips located in a residential development. Community piers with more than 50 slips are coded as a line feature (see Marina definition). In general docks provide access to the water, a mooring for vessels, and a venue for recreational activities. They are mapped as point features. Pier length is not surveyed.
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Inventory
Inventory
String
220
0
0
County
County
String
50
0
0
Year
Year_Created
SmallInteger
2
0
0
Imagery
Imagery
String
220
0
0
AccessStruc
Shoreline_Access_Structures
String
50
0
0
Same as the PNTSTRUC field. Structures that allow access to the water. Access structure types: Dock, Dilapidated Dock, Boathouse, Private Ramp and Public Ramp.
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Jessica Hendricks
Comprehensive Coastal Inventory, Center for Coastal Resources Management, Virginia Insitute of Marine Science (VIMS)
Scientist
1375 Greate Road, P.O. Box 1346
Gloucester Point
Virginia
23062
US
804-684-7140
The shoreline used to create the shapefiles for Maryland is the dataset created in conjunction with the Chesapeake Bay Critical Area remapping project) This shoreline was published in 2016
2016-07-13T00:00:00
All processing steps for the shoreline inventory were generated using ArcGIS - ArcMap v10.6.1 while viewing conditions observed on MD_SixInchImagery and Google Earth Pro (checking dates from 1994 to 2018). 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 spit , 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, delapidated bulkhead, riprap, unconventional, debris, wharf, breakwater, groinfield, jetty, marsh toe revetment, and marina >50 slips and <50 slips.
2020-02-04T00:00:00
QAQC was done by a different Scientist and the entire shoreline was reviewed.
2020-02-18T00:00:00
As the Shoreline Inventory for a Maryland locality is completed, it is added to this composite feature layer. This Shoreline Inventory represents data processed beginning in 2020.
2021-06-01T00:00:00