Short Citation:
Office of Coast Survey, 2019: Coastal Maintained Channels in US waters, https://inport.nmfs.noaa.gov/inport/item/39972.

Item Identification

Title: Coastal Maintained Channels in US waters
Short Name: enc_coastal_maint_chnls
Status: Completed
Publication Date: 2015-12
Abstract:

This layer shows coastal channels and waterways that are maintained and surveyed by the U.S. Army Corps of Engineers (USACE). These channels are necessary transportation systems that serve economic and national security interests. The possibility of silting is always present. Local authorities should be consulted for the controlling depth. NOS Charts frequently show controlling depths in a table, which is kept current by the US Coast Guard Local Notice to Mariners.

Purpose:

To support coastal and ocean planning and other activities pursuant to the Coastal Zone Management Act, Energy Policy Act, Magnuson-Stevens Fishery Conservation and Management Act, National Environmental Policy Act, Rivers and Harbors Act and the Submerged Lands Act

Notes:

1526

Supplemental Information:

The condition of navigation channels is reported to NOAA by USACE on a regular basis. As the USACE performs hydrographic surveys of the maintained channels they provide NOAA with the results of these surveys. The survey results are provided on survey sheets and/or channel condition reports. Hydrographic survey sheets depict the hydrography within the maintained channel as well as the channel limits. The surveys are either a condition or after dredge survey. A condition survey, among other things, depicts hydrography prior to dredging operations and the after dredge survey shows the results of dredging operations. Channel condition reports are a tabulated format of the results of a hydrographic survey. The channel condition reports contain the names of all the reaches in a particular channel. Along with each reach name the project dimensions are listed and they include the reach's width, project depth and length. Additionally for each reach controlling depths are listed for the separate quarters of that reach and the date of the survey from which those controlling depths were taken. The controlling depths are determined by USACE and are the shoalest depths for that quarter of the reach. A channel condition report will also contain more detailed information concerning the location of extreme shoaling or obstructions that may be located in the channel. (Coastal Channel Data: Cooperative Production of a NOAA/USACE Data Framework, Libeau and Morrison 2005)

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category boundaries
ISO 19115 Topic Category elevation
ISO 19115 Topic Category environment
ISO 19115 Topic Category oceans
ISO 19115 Topic Category transportation
NOS Data Explorer Topic Category Marine Boundaries
NOS Data Explorer Topic Category Socioeconomics
None Dredged channels
None National
None Shipping
None U.S. Waters

Spatial Keywords

Thesaurus Keyword
None Atlantic
None Coastal Waters
None Gulf of Mexico
None National
None Pacific
None United States

Physical Location

Organization: Office of Coast Survey
City: Silver Spring
State/Province: MD

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: Weekly
Distribution Liability:

Not for navigation.

Support Roles

Data Steward

CC ID: 808908
Date Effective From: 2018-12-14
Date Effective To:
Contact (Person): Keown, Patrick
Address: 1315 East West Hwy
Silver Spring, MD 20910-3282
Email Address: patrick.keown@noaa.gov
Phone: 240-533-0031

Distributor

CC ID: 808909
Date Effective From: 2018-12-14
Date Effective To:
Contact (Organization): Office of Coast Survey (OCS)
Address: 1315 East West Highway
Silver Spring, MD 20910
URL: https://www.nauticalcharts.noaa.gov/

Metadata Contact

CC ID: 808910
Date Effective From: 2018-12-14
Date Effective To:
Contact (Person): Keown, Patrick
Address: 1315 East West Hwy
Silver Spring, MD 20910-3282
Email Address: patrick.keown@noaa.gov
Phone: 240-533-0031

Point of Contact

CC ID: 808911
Date Effective From: 2018-12-14
Date Effective To:
Contact (Person): Keown, Patrick
Address: 1315 East West Hwy
Silver Spring, MD 20910-3282
Email Address: patrick.keown@noaa.gov
Phone: 240-533-0031

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 493912
W° Bound: -179.46
E° Bound: 174.6
N° Bound: 60.98
S° Bound: 9.31

Extent Group 1 / Time Frame 1

CC ID: 493911
Time Frame Type: Continuing
Start: 2001-07-11

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

These data are intended for coastal and ocean use planning. Not for navigation.

Distribution Information

Distribution 1

CC ID: 493913
Download URL: http://encdirect.noaa.gov/theme_layers/data/coastal_maintained_channels/maintainedchannels.zip
Distributor: Office of Coast Survey (OCS) (2018-12-14 - Present)
Description:

Downloadable Data

File Type: ESRI Shape

URLs

URL 1

CC ID: 493904
URL: https://encdirect.noaa.gov/arcgis/rest/services/NavigationChartData/MarineTransportation/MapServer
URL Type:
Online Resource
Description:

REST service 1 for data access.

URL 2

CC ID: 493905
URL: https://encdirect.noaa.gov/arcgis/rest/services/NavigationChartData/MarineTransportation/MapServer/1
URL Type:
Online Resource
Description:

REST service 2 for data access.

Activity Log

Activity Log 1

CC ID: 493932
Activity Date/Time: 2016-01-29
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 493931
Activity Date/Time: 2017-04-05
Description:

Converted from FGDC Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 587944
Activity Date/Time: 2017-09-13
Description:

Partial upload of Spatial Info section only.

Activity Log 4

CC ID: 601828
Activity Date/Time: 2017-11-01
Description:

Replaced entire Lineage section to populate new Source Contribution field.

Activity Log 5

CC ID: 718987
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Data Quality

Accuracy:

This dataset is derived from NOAA ENC's which conforms to the International Hydrographic

Organization Transfer Standard for Digital Hydrographic Data, Special Publication S-57, ENC Product Specification Edition 2.0.

Horizontal Positional Accuracy:

Maximum scale of intended use is 1:80,000.

Completeness Report:

Coastal maintained channels in U.S. waters represents current coverage of all ENC Charts. The NOAA ENC Chart Suite is not scheduled to be completed until 2015. As new NOAA ENCs and NOAA ENC editions are created they will be added to the NOAA ENC Direct to GIS data on the first of every month.

Conceptual Consistency:

Coastal maintained channels in U.S. waters data is derived from NOAA ENC's which conforms to the International Hydrographic Organization Transfer Standard for Digital Hydrographic Data, Special Publication S-57, ENC Product Specification Edition 2.0. NOAA ENC Direct to GIS data has added generalized nautical chart symbology to aid in the visualization of this data.

Lineage

Sources

ENC Dredged Areas

CC ID: 601829
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: NOAA Electronic Navigational Chart
Publish Date: 2013-05-01
Extent Type: Discrete
Extent Start Date/Time: 2013-05
Citation URL: http://encdirect.noaa.gov/
Citation URL Description:

Data source link.

Source Contribution:

A geometric representation in polygon format of an area designated as a navigable channel, maintained by the USACE and derived from an NOAA Electronic Navigational Chart. | Type of Source Media: online

Process Steps

Process Step 1

CC ID: 601830
Description:

This dataset has been built from a combination of charted information as well as original "source" information. NOAA has compiled critical features such as channel limits, aids to navigation, and obstructions from the original documents that were used to put the feature on the paper chart. The objective is to use the most accurate information for features that are critical to the safety of navigation. NOAA uses a number of sources in compiling NOAA ENCS including U.S. Army Corps of Engineers surveys, drawings, and permits, U.S. Coast Guard Local Notices to Mariner, National Imagery and Mapping Agency Notices to Mariners, NOAA hydrographic surveys, and the largest scale paper chart of an area.

Process Date/Time: 2015-12-01 00:00:00

Child Items

Rubric scores updated every 15m

Type Title
Entity (ENT) CoastalMaintainedChannels

Catalog Details

Catalog Item ID: 39972
Metadata Record Created By: Tyler Christensen
Metadata Record Created: 2017-04-05 13:49+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-06-04 13:14+0000
Metadata Record Published: 2018-12-14
Owner Org: OCS
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-12-15