Mainstream Commercial Divers, Inc. (MCDI)

Mainstream Commercial Divers, Inc. (MCDI)

Mainstream Commercial Divers, Inc. (MCDI) is a full service underwater inspection, underwater construction, and diving company. MCDI has inspected, constructed, and maintained in-water structures of all types. MCDI is experienced in all aspects of inland and coastal commercial diving and underwater construction including: lock, dam, and power plant inspection, construction, maintenance, and repair, bridge inspection, repair, and construction, intake and outfall inspection, construction, cleaning, repair, and maintenance.

Company details

322 C.C. Lowry Drive , Murray , Kentucky 42071 USA
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Business Type:
Service provider
Industry Type:
Soil and Groundwater
Market Focus:
Nationally (across the country)

  • Marine Construction, Inspection, and Salvage
  • River Terminal Inspection and Repair
  • Underwater Wheel Obstruction Removal
  • Underwater Hull Inspections
  • Diver Operated Dredging
  • Pumping, Jetting, and Airlifting Material
  • Potable Water Tank Inspection, Cleaning, and Repair
  • Contaminated Diving Work
  • Pipeline Inspection, Cleaning, and Repair
  • Confined Space Entry In the Wet or Dry Including Providing Confined Space Rescue Teams
  • Clearwell, Wet Well, and Reservoir Inspection, Cleaning, Repair, and Maintenance
  • Underwater Concrete Installation and Repair
  • Underwater Cutting and Welding
  • Sidescan and Sector Scan Sonar Operation
  • Hydrographic Soundings
  • Acoustic Doppler Current Profiles
  • Freshwater Mussel Surveys and Relocations

MCDI has personnel with extensive training and experience in underwater inspection and construction techniques and have successfully performed underwater inspection, construction, and maintenance projects on numerous dams, large and small bridges, pipelines, water intake and outfall systems, stilling basins, mooring cells and mooring dolphins, docks, water storage tanks, wastewater treatment facilities, marine ways, and commercial vessels and barges. MCDI crews routinely work at heavy construction sites, major industrial sites, power plants, and governmental sites.

MCDI’s inspection capabilities include:

  • State of the Art Closed Circuit Underwater Television with Audio
  • Hydrographic Soundings
  • Mesotech Scanning Sonar Inspections
  • Video Inspection and Internal Pipe Cleaning
  • Side Scan
  • NDT Ultrasonics
  • Pit Gauge Readings
  • Mil Thickness Readings
  • Coating Adhesion Testing

In addition to outside training, MCDI has an extensive in-house training program that includes:

  • Inspection Techniques
  • Underwater Video Inspection Methods
  • Documentation of Findings
  • Underwater Construction Techniques
  • Rigging
  • Underwater Cutting Procedures
  • Safe Working Procedures
  • Underwater Coatings Application
  • Contaminated Diving Procedures
  • First Aid/CPR and O2 Administration Training

In addition to commercial diving certifications, MCDI has personnel on staff with:

  • National Highway Institute Certified Bridge Inspector Training (80 hour course-Federal Highway Administration)
  • National Highway Institute Underwater Bridge Inspection Course (FHWA-NHI-130091)
  • Underwater Bridge Inspector’s Training Course (40 hour based on Bridge Inspectors Training Manual 90)
  • OSHA 30 Hour Construction Industry Outreach Training
  • Hazardous Material Training (OSHA 40 hour training)
  • Scour Monitoring and Instrumentation Training (Federal Highway Administration 12 hour Training)
  • Protective Coatings Training – Level 1
  • Confined Space Entry
  • Nuclear Fuel Handler Training
  • Enriched Air Nitrox Diving Certification
  • DAN Oxygen Provider for Diving Emergencies Certification
  • Hyperbaric and Undersea Medical Training (certified decompression chamber operator)
  • First Aid/CPR Instructor Training Certificate
  • Non-Destructive Testing

MCDI is a General Member of the Association of Diving Contractors, International (ADCI).
The ADCI'S goals are to promote safety, education, and communication within the diving industry. In addition to certifying commercial divers, the ADCI works with government agencies to establish regulations and standards. Mainstream meets or exceeds all OSHA regulations and ADCI Consensus Standards for Commercial Diving. In addition, all required paperwork and certifications are kept current on all personnel and equipment including dive physicals, CPR and first aid, oxygen administration for diving accident training, air tests, hose tests, pneumofathometer tests, etc.

All of MCDI’s diving personnel are ADCI certified commercial divers.
MCDI is not only committed to maintaining our own excellent quality and safety record, we are committed to doing our part to ensure the reputation of the companies that we work with. Since our founding in 1988, MCDI has been focused on the safe completion of all projects and has an extremely favorable safety record and EMR. Considering the wide range of projects that we are involved with on a daily basis, this truly is a remarkable accomplishment. Because of this record, we are often chosen to perform projects requiring particular care in order to complete.

MCDI dive crews are experienced with working in all types of inland and coastal conditions including:

  • Shallow Water
  • Deep Water
  • Fast Current
  • Large and Small Rivers, Lakes and Streams
  • Contaminated Water Diving
  • Confined Space Entry

MCDI also owns and maintains an extensive inventory of equipment including:

  • Construction Diving Equipment
  • Hydrographic Survey Equipment
  • Decompression Chamber and Equipment for Deep Diving
  • Equipment for Nitrox Diving
  • Underwater Closed Circuit TV Systems
  • Hydraulic Tools and Pneumatic Tools
  • Dredging Equipment
  • Truckable Barges
  • Work Boats
  • Side Scan/Sector Scan Sonar Equipment
  • Pipe Inspection Crawler and Push Cameras
  • Underwater Cutting and Welding Equipment
  • Rough Terrain Crane and Rough Terrain Forklift