Dive Inspection

With in-house commercially certified hard-hat divers, our team provides comprehensive dive inspections for a range of environments and conditions.

Our Underwater Inspection Capabilities

We can perform a range of underwater inspection services, from simple timber bulkhead inspections to large-scale marine facility structural evaluation with a licensed P.E. diver. So that we may quickly respond to your needs, we maintain a professional fleet of vehicles and vessels equipped with a full complement of state-of-the-art commercial dive equipment.

We have over 52 years of experience in providing diving services to the marine industry. In addition, we are qualified as an Association of Diving Contractors International underwater inspection company.

Whether your project involves a small bridge over two feet of water, a 2,000 foot timber low-deck in 50 feet of water, or an offshore deepwater platform in the Caribbean, our divers have the experience to handle your marine investigation needs. We can assist with:

  • Ultrasonic Thickness Measurements (H-pile, pipe pile, steel bulkheads, and cells as well as vessel hull plating)
  • Bridge Inspections
  • Cathodic Protection Evaluation
  • Pipeline Crossing Profiling
  • Timber and Concrete Boring
  • HD Video and Photographic Documentation
  • Pre-Dredge Sediment Sampling
  • Timber Low-Deck and Steel High-Deck Surveys
  • Intake Inspections and De-Silting
  • Berth Clearing and Target Identification
  • Construction Progress Inspections
  • Failure Analysis of Marine Structures
  • Due Diligence Facility Assessment

ST Hudson has been distinguished by their responsiveness, timely performance, thoroughness and cost-effective solutions to different design problems.

Motiva Enterprises LLC -

See Our Experience

Delaware River and Bay Authority

Delaware River and Bay Authority

Delaware Memorial Bridge Ship Collision Fender System
Philadelphia Regional Port Authority

Philadelphia Regional Port Authority

Pier 80 and 82 Hardware Repairs | Pier 82 and 84 Pile Repairs
Delaware River Bay Authority

Delaware River Bay Authority

Cape May-Lewes Ferry | Terminal Transfer Bridge Improvements
Buckeye Partners L.P.

Buckeye Partners L.P.

Corpus Christi terminal tie-in to export pipeline
View More Projects +

Pro Tips

A certified commercial hardhat diver or dive refers to dive equipment, dive training, and dive procedures that are compliant with standards set by a reputable professional diving association like ADCI (Association of Diving Contractors International).

To conduct a proper ASCE-approved dive inspection, the team usually includes 3-5 certified hardhat divers, a dive supervisor that is a professional engineer, a properly-equipped dive vessel, and a surface-supplied air delivery system.

The ASCE (American Society of Civil Engineers) Waterfront Facilities and Inspection Manual No. 130 provides industry-accepted requirements for dive inspections and dive inspection reports.

Most industrial and commercial marine facilities require that those conducting dive operations on their property be certified hardhat divers from an agency like ADCI (Association of Diving Contractors International).

Divers use underwater cameras to document the inspection process. Ultrasonic Thickness (UT) Instruments are used to measure thickness of steel structures.

Interested in Dive Inspections?