Shoreline Inventory for James City County
and the City of Williamsburg 2014: Access Structures
Shapefile
Tags
Access structures, Virginia, Riparian Land use, Shoreline Inventory,
Chickahominy River, College Creek, James River, Skimino
Creek, Taskinas Creek, York River, Erosion control
structures, Bank cover, James City County, City of Williamsburg
Summary
To inventory James City County and the City of
Williamsburg tidal shoreline conditions.
Description
Shoreline Situation Reports (SSR) were
first generated by VIMS in the 1970's to report the condition and status of the
shore lands. The SSR series were published in hardcopy on a county by county
basis for each of the Tidewater Virginia localities. The reports were intended
to assist planners, managers, and regulators in decisions pertaining to
management of coastal areas and natural resources therein. This is the first
Shoreline Inventory Report for James City County and the City of Williamsburg.
Data collected describes conditions in the immediate riparian zone, the bank,
and along the shore.
Credits
There are no credits for this item.
Use limitations
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.
Extent
|
West |
-76.907716 |
East |
-76.584972 |
|
North |
37.447289 |
South |
37.165231 |
Scale Range
|
Maximum
(zoomed in) |
1:5,000 |
|
Minimum
(zoomed out) |
1:150,000,000 |
ArcGIS Metadata ▼►
Topics and Keywords ▼►
Themes or categories of the resource farming, boundaries,
environment, structure
* Content type Downloadable Data
Export to FGDC CSDGM XML format as
Resource Description No
Place keywords Virginia, James City
County, City of Williamsburg, Chickahominy River, College Creek, Jamestown
Island, Mill Creek, James River, Gordon Creek, Diascund
Creek, Skimino Creek, Taskanas
Creek, York River
Theme keywords Land use, Shoreline
Inventory, Bank cover, Shoreline Stability, Bank Height, Beach, Access
Structures, Shoreline Structures
Citation ▼►
Title Shoreline Inventory for
James City County and the City of Williamsburg 2014: Access Structures
Creation date 2014-02-01 00:00:00
Presentation formats * digital map
Resource Details ▼►
Dataset languages * English (UNITED STATES)
Spatial representation type * vector
* Processing
environment Microsoft
Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri
ArcGIS 10.1.0.3035
ArcGIS item properties
* Name JCC_Wmsbg_astru_2014
* Size 0.016
* Location http://ccrm.vims.edu/ccrmp/index.html
* Access protocol Comprehensive Coastal Resource Management Portal
Extents ▼►
Extent
Geographic extent
Bounding rectangle
Extent type Extent used for
searching
* West longitude -76.907716
* East longitude -76.584972
* North latitude 37.447289
* South latitude 37.165231
* Extent contains
the resource Yes
Extent in the item's coordinate system
* West longitude 331239.593000
* East longitude 359284.890900
* South latitude 4114893.685200
* North latitude 4145681.465100
* Extent contains
the resource Yes
Resource Constraints ▼►
Legal constraints
Limitations of use
The Comprehensive Coastal Inventory Program (CCI) at VIMS performs a service by distributing data generated by either CCI or public agencies which offer data without restriction or charge. CCI assumes no responsibility for data accuracy or precision, metadata completeness or correctness for digital information. CCI 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.
Other
constraints
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.
Constraints
Limitations of
use
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.
Spatial
Reference ▼►
ArcGIS
coordinate system
* Type Projected
* Geographic
coordinate reference GCS_North_American_1983
* Projection NAD_1983_UTM_Zone_18N
* Coordinate
reference details
Projected
coordinate system
Well-known
identifier 26918
X origin -5120900
Y origin -9998100
XY scale 450445547.3910538
Z origin -100000
Z scale 10000
M origin -100000
M scale 10000
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
LatestWKID 26918
Well-known text PROJCS["NAD_1983_UTM_Zone_18N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-75.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26918]]
Reference
system identifier
* Value 26918
* Codespace EPSG
* Version 7.9.4
Spatial
Data Properties ▼►
* Level of topology
for this dataset geometry only
Geometric
objects
Feature class
name JCC_Wmsbg_astru_2014
* Object type point
* Object count 609
ArcGIS Feature Class Properties
Feature class
name JCC_Wmsbg_astru_2014
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 609
* Spatial index TRUE
* Linear
referencing FALSE
Data
Quality ▼►
Lineage ▼►
When the
process occurred 2014-01-01 00:00:00
Description A shoreline for James
City County and the City of Williamsburg was created using 2009 VBMP imagery as
a backdrop and using ArcGis version 10.0. Using this
as a baseline the shoreline inventory was remotely generated using two sources:
2012 oblique Pictometry imagery available through
Bing Maps, and 2013 high resolution imagery available from the Virginia Base
Mapping Program (VBMP). The Tidal Marsh Inventory was updated by surveying in
the field in June 2014. Shorelines of Chickahominy River, College Creek, James
River, Mill Creek, Powhatan Creek, Queen Creek, Shellbank
Creek, Skiffes Creek, Skimino
Creek, Taskinas Creek, The Thorofare,
Ware Creek, and York River were surveyed. The shoreline was coded for land use,
bank height, bank condition, bank cover and the presence or absence of beach,
access structures and hardened structures.
Rationale
When the
process occurred 2014-08-01 00:00:00
Description A
small draft boat was used to collect data in the field. Data is logged using a
geo-referenced video camera. The Red Hen System provides hardware and software
to collect geo-referenced video and photo data in the field. A standard video
camera (sony ACC-HDV7) is
interfaced with a GPS antennae via the Red Hen hardware device - VMS 300. VMS
300 converts GPS data into audio signals, which are sent to a video camera
through its microphone input connector. As the video is recorded, GPS data are
transmitted once per second to the video camera by VMS 300. Each GPS location
is linked with a time code on the video. Therefore, the survey is a set of
videos containing geographically referenced shoreline data.
Rationale
Description All processing steps for
the shoreline inventory were done using ArcGis version
10. Using the latest VBMP 2013 imagery as a background, conditions visible on
shore were used to code a digital shoreline created using VBMP 2009 imagery.
Conditions were also verified using Bing Birds Eye and aerial imagery. For the
land use/bank cover shapefile arcs were split and
coded for land use, bank height, bank cover, bank stability, tree fringe and
presence or absence of beach, for the access structure shapefile
arcs were coded for dock, dilapidated dock, boathouse, and public and private ramps,
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 and <50 slips.
Distribution ▼►
Distribution
format
* Name Shapefile
Version digital
Transfer
options
* Transfer size 0.016
Fields ▼►
Details for object JCC_Wmsbg_astru_2014 ▼►
* Type Feature Class
* Row count 609
Definition
A collection of geographical features with the same geometry type (such as point, line or poly), same attributes, and the same spatial reference.
Definition
source
ESRI
* Alias FID
* Data type OID
* Width 4
* Precision 0
* Scale 0
* Field
description
Internal feature number.
* Description
source
ESRI
* Description of
values Sequential
unique whole numbers that are automatically generated.
* Alias Shape
* Data type Geometry
* Width 0
* Precision 0
* Scale 0
* Field
description
Feature geometry.
* Description
source
ESRI
* Description of
values Coordinates
defining the features.
* Alias PNTSTRU
* Data type String
* Width 50
* Precision 0
* Scale 0
Field
description
Points coded for access structures: dock, dilapidated dock, boathouse, and public and private boat ramps.
Description
source
Glossary of Shoreline Features Defined, Center for Coastal Resources Management, VIMS
List of values
Description 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. They provide access to the water,
usually for recreational purposes. Docks and piers are mapped as point features
on the shore. Pier length is not surveyed.
Value Dock
Enumerated
domain value definition source Glossary of Shoreline Features Defined,
Center for Coastal Resources Management, VIMS
Description Dilapidated Pier – 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
original pilings only.
Value Dilapidated Dock
Enumerated
domain value definition source Glossary of Shoreline Features Defined,
Center for Coastal Resources Management, VIMS
Description 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.
Value Boathouse
Enumerated
domain value definition source Glossary of Shoreline Features Defined,
Center for Coastal Resources Management, VIMS
Description Boat 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.
Value Private Ramp
Enumerated
domain value definition source Glossary of Shoreline Features Defined,
Center for Coastal Resources Management, VIMS
Value Public Ramp
Description Boat 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.
Enumerated
domain value definition source Glossary of Shoreline Features Defined,
Center for Coastal Resources Management, VIMS
Description of
values Access
structures include: dock, dilapidated dock, boathouse, and public and private
boat ramps
* Alias Survey
* Data type String
* Width 50
* Precision 0
* Scale 0
Field
description
Date of shoreline inventory processing or field survey date
Description
source
a text field that describes the field survey date or the processing date of the data
Description of values Dates of shoreline field
survey or date of processing.
Metadata
Details ▼►
* Metadata
language English (UNITED
STATES)
* Metadata
character set utf8 - 8 bit UCS Transfer Format
Scope of the
data described by the metadata * dataset
Scope name * dataset
* Last update 2014-11-18
ArcGIS metadata
properties
Metadata format ArcGIS 1.0
Standard or
profile used to edit metadata ISO19139
Created in
ArcGIS for the item 2014-07-16 14:51:29
Last modified
in ArcGIS for the item 2014-11-18 11:45:44
Automatic
updates
Have been
performed Yes
Last update 2014-11-18 11:41:12
Metadata
Contacts ▼►
Metadata
contact
Individual's
name Sharon
Killeen
Organization's
name Comprehensive
Coastal Inventory Program, Virginia Institute of Marine Science (VIMS)
Contact's
position GIS
Programmer/Analyst
Contact's role point of contact