JOA Surveys, LLC  (JOA), is an Alaska based surveying company specializing in tides and water level measurement, vertical datums and geodetic networks.Since 2003, we have supported shoreline mapping, hydrographic surveys, bathymetric lidar surveys, and special datum determination projects in the Gulf of Maine, Massachusetts, Chesapeake Bay, Florida Keys, Puerto Rico and the Virgin Islands, the Gulf of Mexico, California, Oregon, the Inside Passage of Alaska, the Gulf of Alaska, the Aleutian Islands, Bristol Bay, Kuskokwim River and Bay, Bering Sea, Norton Sound, the Chukchi Sea and the Beaufort Sea.

JOA is a partnership of Erik Oppegard, Nathan Wardwell, and Mike Zieserl. We are always looking for interesting and challenging projects along the coast of Alaska and beyond.