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    • Penobscot River Cross Section Data pre- and post-Dam Removal

    Metadata Updated: January 21, 2026

    The Great Work and Veazie dams on the lower section of the Penobscot River were removed during 2012 to 2013. Channel cross sections adjacent to the dams were surveyed before and after the dams were removed. Data for each cross section include total station theodolite survey data integrated with Acoustic Doppler Current Profiler (ADCP) data referenced from the water surface at the time of the survey to make up integrated cross sections. At the higher flows more data were collected by the ADCP at the edges of the cross sections. There are some gaps in 2009 from where the ADCP data ended and the total station data began. At the lower flow (2010) these edge data were collected wading with the total station, and the gaps were filled in.

    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.

    Downloads & Resources

    Dates

    Metadata Created Date January 11, 2026
    Metadata Updated Date January 21, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 11, 2026
    Metadata Updated Date January 21, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_6054b33fd34e1894882d0794
    Data Last Modified 2021-07-28T00:00:00Z
    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://ddi.doi.gov/usgs-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
    Datagov Dedupe Retained 20260120233220
    Harvest Object Id 8df10749-06f6-4466-9525-a9bf443483b5
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -69.296264649254, 44.679654310029, -69.296264649254, 45.247110699694, -68.263549805546, 45.247110699694, -68.263549805546, 44.679654310029, -69.296264649254, 44.679654310029}
    Source Datajson Identifier True
    Source Hash a4df38485171531c681b74a61f6abe44f3a799964ab15f393505bd84f01995a5
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -69.296264649254, 44.679654310029, -69.296264649254, 45.247110699694, -68.263549805546, 45.247110699694, -68.263549805546, 44.679654310029, -69.296264649254, 44.679654310029}

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