News and information for the worldwide dredging industry

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ARC SURVEYING & MAPPING INC. MERGES WITH FOSTER & ASSOCIATES

Arc Surveying & Mapping Inc. announced in July that it is merging with Foster & Associates of Tuscaloosa, Alabama. Together, the two companies will provide expanded multidiscipline surveying services throughout the Midwest and Mississippi River Valley Basin.  

Arc Surveying is headquartered in Jacksonville, Florida, with offices in Melbourne, Florida, and Memphis, Tennessee. The Florida offices primarily provide surveying services to the southeast U.S., the Caribbean and South America.  

The new combined southern company will primarily serve the U.S. Army Corps of Engineers, the Department of Transportation, major engineering firms, pipeline, dredging and construction contractors. 

In June, Arc also announced a partnership with Demco NV of Wintershoven, Belgium. The joint venture agreement added two additional surveying services to Arc’s roster of systems. Under the agreement, Arc will offer clients throughout North and South America navigational depth and geophysical surveys using Demco’s Aquares and Rheocable systems. Demco will utilize Arc Surveying & Mapping’s hydrographic services in the Americas.

Aquares is a unique electrical resistivity method developed by Demco NV for marine and fluvial geological exploration. Aquares is in use worldwide by Demco, NV, in Australia by OEMG Global and now in the Americas by Arc Surveying & Mapping. Aquares is considered the only existing resistivity method accepted by the worldwide dredging community.

Rheocable is a marine survey method used to accurately determine nautical depths in the presence of fluid mud. The Rheocable method was developed by THV Nautic (MDCE bvba and Demco NV) to cope with current problems and inaccuracies resulting from classical bathymetric dual frequency sounding methods. The principles of the Rheocable are based on locating navigable depths using viscosity rather than the density of fluid mud (commonly referred to as suspended sediments or fluff).

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