Transbay Submarine PowerlinkCable Route Survey Champlain-Hudson ExpressHVDC Cable Hudson Transmission Project Marine Survey for Mari-2Pipeline Route Hydrographic and EnvironmentalMonitoring of the Chesapeake Bayand Choptank River Neptune OffshoreLNG Facility Neptune HVDCCable Route Survey Treasure I...

Trans-Bay Cable InspectionUsing Side Scan Sonarand Gradiometer Neptune HVDCCable Route Survey Nantucket HVDCCable Lay andRemediation Operations Stone SeawallReconstruction atHereford Inlet Treasure Island SubmarineCable Route Design and Engineering Marine Survey TERMAP Positioningand Monitoring inPa...

Transbay Submarine PowerlinkCable Route Survey Champlain-Hudson ExpressHVDC Cable Hudson Transmission Project Marine Survey for Mari-2Pipeline Route Hydrographic and EnvironmentalMonitoring of the Chesapeake Bayand Choptank River Neptune OffshoreLNG Facility Neptune HVDCCable Route Survey Treasure I...

Side Scan Sonar and Grab Sample Surveys for SAV and Oyster Bed Assessment location Tappan Zee Bridge, New York As of the Tappan Zee Bridge crossing the Hudson River between Nyack, and Tarrytown, NY, Alpine carried out an assessment of Submerged Aquatic Vegetation (SAV) and oyster b...

Hereford Inlet Seawall Reconstruction location North Wildwood, New Jersey client Agate Construction and R.E.Pierson Inc. Alpine, Company (2005-2007) and R.E. Pierson, Inc. (2007-2009) to perform precondition and as-built surveys for the Hereford Inlet Seawall reconstruction project. As par...