Our experienced professionals have completed projects from the Eastern Seaboard to the Caribbean to the Northwest Territories of Canada, and are well-versed in the unique requirements and challenges associated with off-shore surveying.

McKim & Creed maintains a fleet of vessels that are equipped with the latest hydrographic technologies, including:

- Magnetometer, which measures magnetic fields in Nanteslas (or Gammas). Sudden variations of the magnetic field indicate the presence of ferrous metal. Magnetometer surveys are used to help locate underwater metal objects such as pipelines, cables, UXO, lost anchors or cutter heads, etc.

- MoDaC™, McKim & Creed’s mobile data collection system that collects 360º survey-grade lidar data from a survey vessel in motion. MoDaC can collect up to 400,00 points per second, recording dense, highly accurate data of waterfront structures, river banks, bulkheads, docks, piling fields and gravel bars.

- Multibeam, which is used to secure 100 percent sonar coverage of water body beds, essentially imaging the bottom. Hydrographic surveyors can collect 480 times the amount of data gathered with a single-beam system. This technology can be applied to such projects as existing conditions surveys, pre- and post-dredges, monitoring bridge scour, underwater obstruction mapping and marine construction monitoring.

- RTK GPS technology, which can cut costs while providing the accuracy needed for better planning and design documents. McKim & Creed’s onboard RTK GPS systems provide a real-time Z-positioning component to each and every sounding. This eliminates data errors caused by heave, settlement, squat, remote tide heave and draft, and reduces many post-processing requirements.

- Side-scan sonar, which can provide broad-scale views of the features in the water column or on the bottom. This technology can be used for maritime archaeology surveys and search surveys, to detect and identify underwater objects and bathymetric features, and for environmental studies.

- Sub-bottom profiling systems that provide information about subsurface sediment structure, and can be used to locate and measure dredged material deposits, and identify buried objects.

McKim & Creed’s team of hydrographic surveying professionals can handle projects anywhere in the world. Let our expertise and experience be the guiding force to keep your beaches, communities, waterways and marine infrastructure safe.

Our services include:

- beach renourishment surveys
- dredging surveys
- coastal monitoring surveys
- hydrographic systems installation and training
- magnetometer surveys
- marine construction equipment/dredge positioning
- underwater obstruction mapping
- multibeam
- side-scan sonar
- single-beam dual frequency
- sub-bottom profiles
- tide gauges
- volume calculations

Projects include:

Diavik Diamond Mine
Bald Head Island Beach Monitoring Survey
Fire Island Beach Renourishment Hydrographic Surveys
Cape May Beach Renourishment
St. Lucia Beach Profiles
Pelican Point / East Grace Bay Post-Construction Beach Renourishment
Delaware Bay Tide Gauges



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