Pile Repair

From destroyed...

To restored.

We specialize in Dock Inspection and Pile Repair

We utilize a 3 step process that includes Inspection, Structural Evaluation, and Pile Restoration.

Step 1: Inspection

Our divers conduct a detailed inspection of the subsurface structure. The inspection is recorded to DVD with a helmet mounted camera and monitored by a topside supervisor.

Step 2: Evaluation

We produce a detailed report assessing the condition of each structure based on a percentage rating system. We work with our cutomers unique needs to determine a course of action.

Step 3: Repair

We mobilize a team of topside and diver personnel. We use a system of fiberglass forms and pumped-in cementious grout or epoxy to restore piles.

A diver prepares to perform an inspection.

Monitoring and recording the inspection topside.

New pile forms.

Filling a pile form.

Marine Construction/Maintenance

Pipeline construction.

Diver staged for construction.

ETD has a 20 year history of successful marine construction projects in the harsh Alaskan environment. We have a proven track record of bringing projects in on time and on budget, with extensive experience mobilizing to remote locations. Our equipment is containerized, allowing us to mobilize efficiently. We have pre-staged equipment sites from the Aleutian chain to Seattle.

Services

• Pipeline / Outfall Installation & Removal
• Dredging
• Dock Repair & Pile Removal
• Underwater Welding & Burning
• Anode Installation
• Underwater Demolition

Environmental Surveys

 

 

 

 

 

Technical Staff

We specialize in environmental compliance assessment of water column and benthos habitat. Our diving staff and contract scientists also provide specific oceanographic, geologic, ecologic, and biologic analysis of coastal marine systems.

Water Quality Compliance

ETD produces underwater surveys necessary for National Pollution Discharge Elimination System (NPDES) Permits administered by the Environmental Protection Agency. Using state of the art equipment, ETD has performed underwater environmental compliance services for many of the major seafood processors in Alaska.

ETD assisted in the design and implementation of environmental monitoring protocols and specific procedures for impact assessments in coastal Alaska. These protocols are currently used by state and federal agencies.

Environmental Services Include:

• Underwater Waste Assessment Surveys
• Sediment Sampling (Vibracore testing, etc.)
• Water Quality Testing
• Dredging
• Underwater Photography and Video
• Underwater Debris Surveys
• Eel Grass Surveys
• Digital Imagery
• Ultra Short Baseline Survey

Underwater Inspection

 

 

State of The Art Equipment

ETD’s underwater inspections use the most state of the art equipment. Our goal is to provide our customers with accurate and detailed assessments. Our experience in working in less than desirable environments allows us to provide precise inspections in high sea states, turbid or black water conditions including heavy river currents.

Services Include:

• Sonar Inspections
• Bridge Inspection
• NDT Inspections
• Underwater Video and Still Photography
• Pipeline Inspections
• Pile Inspections
• Dock Inspection: Wood, Steel, Sheet Pile

Ships Husbandry

 

Services Include:

• Non-destructive Testing
• Anode Installation
• Underwater Welding and Burning
• Blanking Hull Penetrations
• Hull Cleaning
• Propeller Removal and Installation
• Underwater Video
• Underwater Photography

Underwater Salvage Services

 

Services Include:

• Fishing Vessels
• Barges
• Pleasure Craft, Yachts
• Construction Equipment
• Cargo