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Single-beam bathymetric survey of the French Broad River near the Interstate 26 bridge located south of Asheville, NC – June 2022, Mid-Construction #4

Metadata Updated: July 6, 2024

In January 2020, the North Carolina Department of Transportation (NCDOT) began work on the Interstate 26 (I 26) highway widening project that involves a bridge crossing over the French Broad River (FBR) near Asheville, North Carolina. The U.S Geological Survey (USGS) in cooperation with the NCDOT conducted a pre-construction bathymetric survey of the streambed in June 2019 (Whaling and Wagner, 2021) within a one-kilometer reach of the FBR at the bridge construction site. A canoe-based repeat bathymetric survey was collected with a single-beam echosounder approximately 30 months after construction began, with the purpose to monitor geomorphological changes to the streambed and inform the NCDOT of potential impacts from construction activities. The survey extended from 300 meters (m) upstream to 700 m downstream from the bridge. Depth data were collected using a canoe-mounted CEESCOPE single-beam echosounder manufactured by CEE Hydrosystems. Position and elevation data were collected using an SBG Ellipse-D, a dual antenna Real-Time Kinematic (RTK) Inertial Navigation System (INS). The final dataset provides position data in three dimensions with units of meters supplied in a “XYZ” file. The data are projected in Universal Transverse Mercator (UTM) coordinate system, zone 17 north, horizontally referenced to the North American Datum of 1983 (NGS, 2018a), 2011 realization (NAD83 2011), and vertically referenced to the North American Vertical Datum of 1988 (NAVD88; NGS, 2018b).

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date December 7, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date December 7, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/a9f8f4b7c2cf5f06dbc5dab8655b9fae
Identifier USGS:6408f25bd34e76f5f75e51a0
Data Last Modified 20231204
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 3e69523d-3759-48dc-ac2f-107509dfccf7
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -82.5877,35.5109,-82.577,35.5143
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash e18d7e70826ddc2ae3a846aa5719b3aa49ee29a5bbdd27dd98132e58c4b4babb
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -82.5877, 35.5109, -82.5877, 35.5143, -82.577, 35.5143, -82.577, 35.5109, -82.5877, 35.5109}

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