Field knowledge for owners of submerged infrastructure.
Practical information for owners, engineers, contractors and operators responsible for submerged infrastructure, written by people who perform the work.
Start with these.
Resources that answer the most common questions from infrastructure owners scoping underwater work.
Planning an Underwater Infrastructure Inspection
What to gather before scoping a dive inspection at a treatment facility, dam or bridge.
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What Owners Should Know Before Commercial Diving Begins
Site preparation, safety expectations and coordination before a dive team mobilizes.
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Planning an Underwater Dam Inspection
Gates, trash racks, outlets and concrete, what a dam inspection should cover.
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How to Determine the Right Dredging Method
Hydraulic, mechanical and diver-assisted options, and what governs the choice.
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Planning an Underwater Infrastructure Inspection
What to gather before scoping a dive inspection at a treatment facility, dam or bridge.
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Diving Without Shutting Down a Facility
How inspection and repair can be planned around live, operating infrastructure.
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Contaminated-Water Diving: What's Actually Required
Equipment, planning and protocol differences for wastewater and process-water diving.
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Reading a Commercial Dive Inspection Report
What the video, measurements and observations in a dive report actually tell you.
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Planning Intake Inspection & Maintenance
Coordination, access and operational considerations before inspecting an intake.
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Dredging Around Critical Infrastructure
How diver-guided dredging protects intakes, screens and structures during sediment removal.
Read article →What Owners Should Know Before Commercial Diving Begins
Site preparation, safety expectations and coordination before a dive team mobilizes.
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What Is Surface Supplied Commercial Diving?
Why infrastructure work uses surface-supplied systems instead of scuba.
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Commercial Diving for Water & Wastewater Facilities
Potable and wastewater environments, operational constraints and documentation.
Read article →Planning an Underwater Dam Inspection
Gates, trash racks, outlets and concrete, what a dam inspection should cover.
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Inspecting Gates, Intakes & Trash Racks
Component-level inspection scope for flow control structures.
Read article →How to Determine the Right Dredging Method
Hydraulic, mechanical and diver-assisted options, and what governs the choice.
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Inspection Before Underwater Repair
Why repair scoping starts with documented condition, not assumptions.
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Working Around Operational Infrastructure
Planning underwater work in facilities that must stay in service.
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What Information Is Needed to Estimate an Underwater Project?
The site, condition and scope information that produces a usable estimate.
Read article →Active failure? Go to Emergency Assistance.
TELL US ABOUT THE FACILITY AND THE CONDITION.
If a guide raises a question about your structure, describe the facility and the condition. Zion Marine will help determine the appropriate next step.