Tubular conduits of substantial length, with pumps, valves, and control devices, for conveying fluids, gases, or finely divided solids. [USGS Circ 1048]
This category is also used for compressor stations, gas pipelines, oil pipeline junctions, oil pipelines, oil pipeline terminals, oil pumping stations, pumphouses, pump houses, pumping stations, and water pumping stations.
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Interpretation of NOAA H11310 Sidescan Sonar and Bathymetric Data from Central Narragansett Bay (H11310INT.SHP)

The United States Geological Survey (USGS) is working cooperatively with the National Oceanic and Atmospheric Association (NOAA) to interpret the surficial geology in estuaries along the coast of the northeastern United States. The purpose of our present study is to interpret the distributions of surficial sediments and sedimentary environments in an area of Narragansett Bay using sidescan sonar imagery, high-resolution bathymetry, and sediment data. The mosaic presented herein covers an area of the sea ...

Data Layer Containing the Features Interpreted to be on the Sea Floor within the National Oceanic and Atmospheric Administration (NOAA) H11255 Survey Area in Southeastern Long Island Sound (H11255INTERP.SHP, Geographic)

Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations. These maps help define the geological variability of the seafloor (one of the primary controls of benthic habitat diversity); improve our understanding of the processes that control the distribution and transport of bottom sediments, and the distribution of benthic habitats and associated infaunal community structures; and provide a detailed framework for future research, ...