Overwater Structures in Navigable Rivers in Washington State

Data format: Personal GeoDatabase Feature Class

File or table name: Overwater_Structures_Rivers

Coordinate system: Lambert Conformal Conic

Theme keywords: Overwater Structures, docks, rivers, buildings, Shoreline Modification, bridges, floats, marinas, HCP Habitat Conservation Plan

Abstract: The Overwater Structures River layer is made up of thousands of digitized overwater structures such as docks, bridges, floats, structural support fill, and other structures such as floating homes. Structures were digitized from three (3) foot/one (1) meter resolution color orthophotos taken between 2002 to 2006 by either the Washington State Department of Natural Resources (Washington DNR) or the United States Department of Agriculture National Agriculture Imagery Program (NAIP). The data layer is statewide and includes all rivers classified as definitely or probably navigable by the Revised Code of Washington (RCW 90.56.010(15)), as well as a limited set of rivers classified as possibly navigable. The datatable has been standardized so that overwater structures can be looked up based on structure type, structure size, waterbody name, township, county, or waterbody navigability. NOTE: While Washington DNR is willing to share the data with other entities, there are currently no plans to QA/QC the data or maintain it.

FGDC and ESRI Metadata:

Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.

Identification Information:


Citation:
Citation information:
Originators: Washington State Department of Natural Resources, Aquatics Division


Title:
Overwater Structures in Navigable Rivers in Washington State
*File or table name: Overwater_Structures_Rivers


Publication date: July 18, 2007.
Publication time: Unknown
Edition: first
*Geospatial data presentation form: vector digital data


Online linkage: \\Snarf\aqr\gis_data\HCP\Overwater Structures\OS_Final_2007-11-20\Overwater_Structures_Rivers


Description:
Abstract:
The Overwater Structures River layer is made up of thousands of digitized overwater structures such as docks, bridges, floats, structural support fill, and other structures such as floating homes. Structures were digitized from three (3) foot/one (1) meter resolution color orthophotos taken between 2002 to 2006 by either the Washington State Department of Natural Resources (Washington DNR) or the United States Department of Agriculture National Agriculture Imagery Program (NAIP).  The data layer is statewide and includes all rivers classified as definitely or probably navigable by the Revised Code of Washington (RCW 90.56.010(15)), as well as a limited set of rivers classified as possibly navigable. The datatable has been standardized so that overwater structures can be looked up based on structure type, structure size, waterbody name, township, county, or waterbody navigability.  NOTE: While Washington DNR is willing to share the data with other entities, there are currently no plans to QA/QC the data or maintain it.

Purpose:
To map and quantify the extent of overwater structures on and adjacent to state-owned aquatic lands as part of the take analysis for a proposed State-owned Aquatic Lands Habitat Conservation Plan (HCP).

*Language of dataset: en


Time period of content:
Time period information:
Range of dates/times:
Beginning date: 2002
Ending date: 2006

Currentness reference:
Date range of orthos used as digitization reference

Status:
Progress: Complete
Maintenance and update frequency: None planned

Spatial domain:
Bounding coordinates:
*West bounding coordinate: -124.708096
*East bounding coordinate: -116.711826
*North bounding coordinate: 49.030014
*South bounding coordinate: 45.503810

Local bounding coordinates:
*Left bounding coordinate: 629004.671427
*Right bounding coordinate: 2550736.899806
*Top bounding coordinate: 1348537.961831
*Bottom bounding coordinate: 87472.040071

Keywords:
Theme:
Theme keywords: Overwater Structures, docks, rivers, buildings, Shoreline Modification, bridges, floats, marinas, HCP Habitat Conservation Plan
Theme keyword thesaurus: REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.

Place:
Place keywords: Washington State, Adams County, Asotin County, Benton County, Chelan County, Clallam County, Clark County, Columbia County, Cowlitz County, Douglas County, Ferry County, Franklin County, Garfield County, Grant County, Grays Harbor County, Island County, Jefferson County, King County, Kitsap County, Kittitas County, Klickitat County, Lewis County, Lincoln County, Mason County, Okanogan County, Pacific County, Pend Oreille County, Pierce County, San Juan County, Skagit County, Skamania County, Snohomish County, Spokane County, Stevens County, Thurston County, Wahkiakum County, Walla Walla County, Whatcom County, Whitman County, Yakima County

Access constraints: Freely available from the Washington DNR and contingent upon acceptance of all the terms and conditions contained in the DNR agency license agreement.
Use constraints:
Use must conform to the Washington DNR license agreement

Point of contact:
Contact information:
Contact person primary:
Contact person: Carol Cloen
Contact organization: Washington DNR, Aquatic Resources Division
Contact position: Natural Resource Scientist


Contact address:
Address type: mailing and physical address
Address:
1111 Washington Street SE
City: Olympia
State or province: WA
Postal code: 98504-7047
Country: USA

Contact voice telephone: (360) 902-1098


Contact electronic mail address: carol.cloen@dnr.wa.gov


Hours of service: 8-4:30



*Native dataset format: Personal GeoDatabase Feature Class
*Native data set environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.0.1324


Cross reference:
Citation information:
Originators: DNR Aquatic Resources Division


Title:
Overwater Structures


Publication date: 2007
Edition: First
Geospatial data presentation form: vector digital data


Series information:
Series name: Overwater Structures

Publication information:
Publication place: Olympia, Washington
Publisher: DNR Aquatics

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Data Quality Information:


Positional accuracy:
Horizontal positional accuracy:
Horizontal positional accuracy report:
The accuracy of these polygons is based on the accuracy of the 3 foot/1 meter resolution orthophotos used as digitization reference. There may be slight spatial differences between the DNR orthophotos and the USDA NAIP orthophotos due to differences in photogrammetry methods (most notable when viewing taller structures) or from differences associated with "on the fly" projection of the USDA NAIP orthos. There may also be errors associated with the ortho photo quality, namely due to shadow, glare on the water, or random objects with a similar appearance as an overwater structure.

Quantitative horizontal positional accuracy assessment:
Horizontal positional accuracy value: 10 feet
Horizontal positional accuracy explanation:
The resolution of the orthophotos used for digitization reference is 3 feet, with a horizontal accuracy of + or - 10 feet. The observed difference noted between "on the fly" vs. manual reprojection of non-DNR orthophotos was roughly 6 feet.

Lineage:
Source information:
Source citation:
Citation information:
Originators: USDA


Title:
National Agriculture Imagery Program


Publication date: 2006


Online linkage: http://165.221.201.14/NAIP.html


Source scale denominator: one meter resolution
Source citation abbreviation:
NAIP
Source contribution:
Statewide color orthophotos

Source time period of content:
Time period information:
Single date/time:
Calendar date: 2006

Source currentness reference:
ground condition

Source information:
Source citation:
Citation information:
Originators: Washington State DNR


Title:
DNR orthophotos


Online linkage: http://www.dnr.wa.gov/dataandmaps/maps/photo_january.htm#ortho


Source scale denominator: 3 foot resolution
Source citation abbreviation:
DNR orthos
Source contribution:
Color orthophotos for specific regions of the state

Source time period of content:
Time period information:
Range of dates/times:
Beginning date: 2002
Ending date: 2005


Process step:
Process description:
Three foot resolution orthophotos were used as the underlying reference layer for the manual digitization (outlining) of various types of overwater structures.

Process contact:
Contact information:
Contact person primary:
Contact person: Melissa Whitman
Contact organization: DNR Aquatics
Contact position: HCP Spatial Analyst


Contact voice telephone: (360) 902-1039


Contact electronic mail address: melissa.whitman@dnr.wa.gov


Process step:
Process description:
The newly created polygon is classified based on structure type, characteristics, and location

Cloud cover: <10%
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Spatial Data Organization Information:


*Direct spatial reference method: Vector


Point and vector object information:
SDTS terms description:
*Name: Overwater_Structures_Rivers
*SDTS point and vector object type: G-polygon
*Point and vector object count: 6196

ESRI terms description:
*Name: Overwater_Structures_Rivers
*ESRI feature type: Simple
*ESRI feature geometry: Polygon
*ESRI topology: FALSE
*ESRI feature count: 6196
*Spatial index: TRUE
*Linear referencing: FALSE


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Spatial Reference Information:


Horizontal coordinate system definition:
Coordinate system name:
*Projected coordinate system name: NAD_1983_HARN_StatePlane_Washington_South_FIPS_4602_Feet
*Geographic coordinate system name: GCS_North_American_1983_HARN

Planar:
Map projection:
*Map projection name: Lambert Conformal Conic
Lambert conformal conic:
*Standard parallel: 45.833333
*Standard parallel: 47.333333
*Longitude of central meridian: -120.500000
*Latitude of projection origin: 45.333333
*False easting: 1640416.666667
*False northing: 0.000000

Planar coordinate information:
*Planar coordinate encoding method: coordinate pair
Coordinate representation:
*Abscissa resolution: 0.000328
*Ordinate resolution: 0.000328
*Planar distance units: survey feet

Geodetic model:
*Horizontal datum name: D_North_American_1983_HARN
*Ellipsoid name: Geodetic Reference System 80
*Semi-major axis: 6378137.000000
*Denominator of flattening ratio: 298.257222

Vertical coordinate system definition:
Altitude system definition:
Altitude resolution: 1.000000
Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

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Entity and Attribute Information:


Detailed description:
*Name: Overwater_Structures_Rivers


Entity type:
*Entity type label: Overwater_Structures_Rivers
*Entity type type: Feature Class
*Entity type count: 6196
Entity type definition:
Features represent the overwater structure "footprint", based on manual digitization of structures observed in orthophotos

Attribute:
*Attribute label: PERIMETER
*Attribute alias: PERIMETER
Attribute definition:
Length (feet) of Overwater Structure Perimeter

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: AREA
*Attribute alias: AREA
Attribute definition:
Area (Square Feet) of the Overwater Structure

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: CART_NAME
Attribute definition:
Cartographers last name

*Attribute type: String
*Attribute width: 50


Attribute domain values:
Enumerated domain:
Enumerated domain value: Whitman
Enumerated domain value definition:
Melissa Whitman

Enumerated domain:
Enumerated domain value: McAullife
Enumerated domain value definition:
Sandra McAullife

Enumerated domain:
Enumerated domain value: Bloch
Enumerated domain value definition:
Phil Bloch

Enumerated domain:
Enumerated domain value: Gombert
Enumerated domain value definition:
Dale Gombert

Attribute:
*Attribute label: SHAPE
*Attribute alias: Shape
*Attribute definition:
Feature geometry.
*Attribute definition source:
ESRI

*Attribute type: Geometry
*Attribute width: 0
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
*Unrepresentable domain:
Coordinates defining the features.


Attribute:
*Attribute label: NAVIGABILITY
*Attribute alias: NAVIGABILITY
Attribute definition:
Navigabilty of waterbody where OWS is located based on Washington State's definition per WAC 332-30-106(41)

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: ACRES
*Attribute alias: ACRES
Attribute definition:
The area of the overwater structure expressed in acres

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: HECTARES
*Attribute alias: HECTARES
Attribute definition:
The area of the overwater structure expressed in hectares

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: OBJECTID_1
*Attribute alias: OBJECTID_1
*Attribute definition:
Internal feature number.
*Attribute definition source:
ESRI

*Attribute type: OID
*Attribute width: 4
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
*Unrepresentable domain:
Sequential unique whole numbers that are automatically generated.


Attribute:
*Attribute label: OS_DETAIL
*Attribute alias: OS_DETAIL
Attribute definition:
Additional detail on the type of overwater structure (ex. st_type=bridge, os_detail=road)

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: OS_DETAIL2
*Attribute alias: OS_DETAIL2
Attribute definition:
A more detailed description of Overwater Structure type

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: DECKING
*Attribute alias: DECKING
Attribute definition:
Structure decking complete or partial

*Attribute type: String
*Attribute width: 15
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: COMPLEX
*Attribute alias: COMPLEX
Attribute definition:
Observation whether or not the overwater structure included multiple structure types (such as including both a building and a dock)

*Attribute type: String
*Attribute width: 3
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: BOAT
*Attribute alias: BOAT
Attribute definition:
Was a boat included in OWS footprint

*Attribute type: String
*Attribute width: 3
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: COMMENTS
*Attribute alias: COMMENTS
Attribute definition:
Cartographer comments about the digitization or classification of an overwater structure. Used for clarification of overwater structure definition, or for notation of observed features. Examples of this would be to note if the overwater structure intersects with two or more townships or it the structure is within a broad intertidal area such as a mud flat. The comments field is not intended to be used as a variable for data analysis, but rather as a method to understand data assumptions or characteristics.

*Attribute type: String
*Attribute width: 150
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: SOURCE
*Attribute alias: SOURCE
Attribute definition:
Orthophoto source, code ID, resolution, and year.

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: OBJECTID
*Attribute alias: OBJECTID


*Attribute type: Number
*Attribute width: 9


Attribute:
*Attribute label: COMPLEXITY
*Attribute alias: COMPLEXITY
Attribute definition:
Estimated dock usage based on size of the structure. Simple docks are interpreted to be for single family recreational use; complex docks are interpreted to be used for community, commercial, or industrial use

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: DIGITIZED
*Attribute alias: DIGITIZED
Attribute definition:
Date that the overwater structure was digitized

*Attribute type: Date
*Attribute width: 8
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: OS_ID
*Attribute alias: OS_ID
Attribute definition:
The OS_ID_CODE is made up of three parts to identify general water body type, specific water body code, and individual overwater structure identification number. The first two letters of the code is an abbreviation for the general water body type (LK= Lake, RV= River, MA = Marine). The first four numbers of the code represent the specific water body (for rivers, a numeric code based on the alphabetical order of the water body name). The last five numbers of the code represent the individual overwater structure identification number. In general, the last five numbers for lakes will be between 0-39,999; marine 40,000-69,999; and rivers 70,000-99,999.

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: CART_ID
Attribute definition:
Cartographer Name

*Attribute type: String
*Attribute width: 50


Attribute domain values:
Codeset Ddomain:
Codeset name: CART_ID code
Codeset source: Refer to CART_NAME column for general description of each code value

Attribute:
*Attribute label: WC_GNIS_NM
*Attribute alias: WC_GNIS_NM
Attribute definition:
Watercourse GNIS (Geographic Names Information System) name. The name of the watercourse as contained within the USGS GNIS database (http://geonames.usgs.gov/domestic/index.html). Not all features will have a GNIS name and number, but all features with GNIS names will have GNIS numbers and vice versa.

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: WC_SPECIFIC
*Attribute alias: WC_SPECIFIC
Attribute definition:
A secondary, and generally more site specific, name for a section of river. Examples include "North Fork of the <blank> River" or "<blank>" Slough

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: STRUCTURE_TY
*Attribute alias: STRUCTURE_TY
Attribute definition:
A more detailed description of Overwater Structure type

*Attribute type: String
*Attribute width: 15
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: PLSS_TOWNSHIP
*Attribute alias: PLSS_TOWNSHIP
Attribute definition:
Public Land Survey System Township (PLSS_Township).  Overwater structures are organized based on the nearest township. If an onshore structure crosses two or more townships the PLSS_Township for the shoreward portion of the structure is assumed. If the overwater structure crosses two or more townships, but does not touch land the PLSS_Township with the majority of the township is assumed

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: COUNTY_NM
*Attribute alias: COUNTY_NM
Attribute definition:
County name where OWS is located

*Attribute type: String
*Attribute width: 50
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: ORTHOPHOTO_ORIGIN_DATE
*Attribute alias: ORTHOPHOTO_ORIGIN_DATE
Attribute definition:
Date Orthophoto was flown

*Attribute type: SmallInteger
*Attribute width: 2
*Attribute precision: 0
*Attribute scale: 0


Overview description:
Entity and attribute overview:
The attributes used for this project were selected to better clarify the physical characteristics or description of a each overwater structure, as well as to provide insight to their location in reference to other features of the politically defined landscape.

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Distribution Information:


Distributor:
Contact information:
Contact person primary:
Contact person: Carol Cloen
Contact organization: Washington DNR, Aquatic Resources Program
Contact position: Natural Resource Scientist


Contact address:
Address:
1111 Washington Street SE
City: Olympia
State or province: WA
Postal code: 98504-7047

Contact voice telephone: (360) 902-1098


Contact electronic mail address: carol.cloen@dnr.wa.gov


Hours of service: 8:00-4:30



Resource description: Distribution Data


Standard order process:
Digital form:
Digital transfer information:
Transfer size: 2.986
*Dataset size: 1.032

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Metadata Reference Information:


*Metadata date: 20080806


*Language of metadata: en


Metadata contact:
Contact information:
Contact person primary:
Contact person: Melissa Whitman
Contact organization: Washington State Department of Natural Resources, Aquatics Division
Contact position: HCP Spatial Analyst


Contact address:
Address type: mailing and physical address
Address:
1111 Washington Street SE
City: Olympia
State or province: WA
Postal code: 98504-7047
Country: USA

Contact voice telephone: (360) 902-1039


Contact electronic mail address: melissa.whitman@dnr.wa.gov


Hours of service: 8-4:30



*Metadata standard name: FGDC Content Standards for Digital Geospatial Metadata
*Metadata standard version: FGDC-STD-001-1998
*Metadata time convention: local time


Metadata extensions:
Online linkage: http://www.esri.com/metadata/esriprof80.html
Profile name: ESRI Metadata Profile

Metadata extensions:
*Online linkage: http://www.esri.com/metadata/esriprof80.html
*Profile name: ESRI Metadata Profile