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Coastal Geology and Geophysics

Since 1984, APTIM has provided professional coastal and marine geophysical surveys and scientific services to clients, earning an excellent reputation with local, state and federal agencies responsible for permitting and overseeing coastal and marine programs.

Our Coastal Sciences and Engineering team has a rich history of successfully meeting the challenges of our clients with regards to logistically challenging and technically demanding oceanographic surveying operations. We efficiently and effectively manage projects that involve intensive coordination with not only clients, but also local, state and federal stakeholders.

APTIM performs offshore geophysical and geotechnical surveys to provide a clear and accurate account of the existing seafloor and sub-bottom conditions. The data are used to determine the presence of specific geomorphic features known to produce large quantities of sand or mixed sediment such as large incised valleys, sand flats, submerged shoals and channel complexes. The data are also used to identify potential cultural resources such as artifacts, underwater wrecks, submerged hazards, significant relict landforms or any other features, including modern debris that may impact borrow area delineation and dredging activities.

Unparalleled Experience in Coastal Geology and Geophysics

We are the industry leader in identifying high quality sediment for beach and habitat restoration. Using geologic models and state of the art geophysical and geotechnical equipment we have located 500+ million cubic yards of sand to restore America’s beaches. We have designed hundreds of borrow areas that have supported 100+ beach nourishment projects throughout Florida, the Gulf Coast and the Atlantic Seaboard and conducted 1000s of miles of offshore geophysical surveys to provide effective and efficient services for offshore energy and infrastructure projects.

APTIM has a large in-house equipment inventory available even in periods of high demand. Our full array of survey equipment and software enable us to accomplish a wide range of project tasks and allow for the development of multiple strategies for overcoming obstacles in a variety of marine environments. Our team of geologists, geophysicists, marine archaeologists and marine scientists are ready to help protect and restore your communities’ coastlines with proven results and the following capabilities:

  • Marine Geophysical Data Collection, Processing and Interpretation
  • Geotechnical Collection and Analysis
  • Maritime Archaeology and Cultural Resource Services
  • Marine Sediment Resource Identification
  • Database Management
  • Borrow Area Design and Permitting
  • Geohazard and Resource Mapping
  • Environmental Habitat Mapping and Clearance
  • Infrastructure Planning and Clearance
  • Offshore Infrastructure Decommissioning
  • CMEC Accredited Laboratory
  • Baseline Environmental Surveys

State-of-the-art Equipment and Facilities

  • Multibeam Sonars/ Single Beam Fathometers
  • Magnetometers and Gradiometers
  • Sidescan and Interferometric Sonars
  • Sub-Bottom Profilers
  • Electric Vibracore System
  • CMEC Accredited Laboratory

Proven and Efficient Techniques

Our regional sediment search approach is so successful that it has been incorporated into Louisiana’s Office of Coastal Protection and Restoration Authority (CPRA) “General Guidelines: Exploration for Offshore Sand Sources” and the Florida Department of Environmental Protection’s “Offshore Sand Search Guidelines”.

Innovative Coastal Science Solutions

While APTIM’s geophysicists, geologists and marine scientists maintain a reputation as industry leaders and use time tested geophysical and geotechnical surveying techniques to serve a diverse range of clients, we are constantly incorporating the latest technologies into our scientific and survey methodologies to provide the best possible, cost-effective solutions to meet specific project needs. Our geophysicists and geologists are experts in the use of remote sensing techniques, marine geophysical data collection, processing and interpretation, combining geomorphological mapping with geotechnical measurements to locate and define sediment deposits accurately and effectively. We combine state-of-the-art geomorphologic mapping with geophysical and geotechnical measurements to locate and define large sand deposits accurately and effectively. Our techniques are proven and efficient as we are able to modify field operations “on the fly” as data is collected and immediately analyzed. In a comprehensive marine sediment search, we organize the investigation into three sequential phases that allow us to optimize offshore sand searches to best locate sediment resources for our clients. Our regional sand search approach is so successful that it has become an industry standard and has been incorporated into the Coastal Protection and Restoration Authority (CPRA) of Louisiana “General Guidelines: Exploration for Offshore Sand Sources” and the FDEP’s “Offshore Sand Search Guidelines.” Our work is supported by our sediment laboratory, which is accredited by CMEC, Inc. for American Society for Testing and
Materials (ASTM) D422/T88 Sieve Analysis, D4648, and CPE-HAT-09.

In addition to our scientific expertise, we are innovating a technological approach to offshore sediment management with the recent development of the Louisiana Sediment Availability and Allocation Program (LASAAP) for CPRA as well as currently teaming with The Water Institute to develop the Northern Gulf Sediment Availability and Allocation Program. These geospatial toolboxes will further enhance coastal managers understanding of sediment needs, availability and resource use conflicts.

APTIM. Expect the Extraordinary.

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