Diving Services

Diving Services

Utilizing surface-supplied diving equipment (hard hat diving) along with trained and certified commercial divers and professional engineers, Terracon performs materials inspections and other diving related services. These services further our testing and inspection competencies and technical capabilities. Our diving activities provide clients with access to underwater structures and information necessary to complete their projects while aiding in assuring the integrity of structural elements below the waterline. All underwater activities are performed in accordance with safe diving practices specified by the Occupational Safety and Health Administration (OSHA), U.S. Coast Guard (USCG), Army Corps of Engineers, and Association of Diving Contractors International. Additionally, a thorough site-specific emergency action plan is prepared for each dive event.

Materials Inspection/Assessment of:

  • FHA Bridge Substructure Inspections – Level I, II, III Bridge Inspections in accordance with Federal Highway Administration National Bridge Inspection Standards Adopted in January 2005
  • Underwater Quality Assurance/Quality Control
  • Intake, Outfall Structures
  • Lock and Dam Structures
  • Ecological/Environmental Surveys
  • Potable Water Storage Facilities
  • Fire Suppression Water Storage Facilities
  • Wastewater Treatment Facilities
  • Chemical and Powerhouse Facilities
  • Industrial Cooling and Reclamation Chambers/Pits
  • Pipelines, to Include Penetration
  • Riverfront Structures & Marine Terminals
  • Vessels, to Include Detailed Hull and Running Gear
  • Asset Recovery
  • Unmanned Inspection through Remotely Operated Vehicle (ROV)
  • Hydrographic Mapping

Other Underwater Service Capabilities but not limited to:

  • Potable Water Diving
  • Contaminated Water Diving
  • Video/Digital Photography
  • Welding
  • Nondestructive Testing – Ultrasonic testing
  • Partial & Destructive Sampling
  • Coatings
  • Coating Thickness
  • Debris Removal
  • Sediment Removal


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