Welcome to Great Lakes Underwater Services


Great Lakes Underwater Services LLC is an Industrial Marine Contracting Company. Since July 12,1972 GLUS has been soley owned and operated by Bob and Tony Grace by providing expert professional underwater and related services. Specializing in Railroad bridge inspections and maintenance, confined space, zero vizibility diving and performing underwater work for the electric utilities, refineries, water plants, generation stations, paper mills and the department of transportaion.

GLUS is a proud member of the Association Of Diving Contractors International (ADCI) and operate beyond the standards required not only by ADCI but also through;

ANSI/ACDE-01-2009 Standards
  • ANSI- American National Standard Institute
  • ACDE- Association of Commercial Diving Educators
USCG- Department of transportation 46 CFR Ch.1 (10-1-89)
  • Subchapter V – Marine Occupational Safety And Health Standards
  • Part 197 – General Provisions Subpart b – Commercial Diving Operations
OSHA- 1910 Subpart T- Commercial Diving Operations
OGP –Oil and Gas Producers Association
IMCA – International Marine Contractors Association

Great Lakes Underwater Services takes pride in its outstanding safety record which is exemplified by the safety awards and acknowlegment through the railroad, utilities and refinery industries. Since the company was established, GLUS maintains a zero run loss record for job related injuries.



AREMA -American Railway Engineering and Maintenance-of-Way Association :

"AREMA   thanks you for your hard work and efforts as an AREMA Leader. Your generous gift of time and dedication provides ongoing advancements in the Railroad Industry. Your commitment towards our mission is invaluable to the organizations success. The AREMA Headquarters Staff appreciates all you do to provide a valuable service to our industry". With Sincerest Gratitude, Lindsay H., Director of Marketing & Communications. 4/12/2015


BP HUSKY REFINING  -                                                                                                                                                                                                                                             "Bob Grace and his company (Great Lakes Underwater Services, LLC.) have performed diving operations (inspections, repairs, surveys, soundings and 3D underwater Sonar Imagery) for my company BP Husky Refining, at our marine dock for several years. The work has always been performed as planned and was executed safely and on time. Great Lakes Underwater Services will always be the first company I would call for any dive-or related operations.   Bob and his son Tony are top tier people, both professionally and personally. Their professionalism  and desire to provide safe, efficient, and complete underwater inspection and services much beyond the client’s expectations are cornerstones of the company they represent and are why I recommend them in the highest degree."