Dam, Reservoir & Water Tank Inspection

Professional Underwater Inspections for Critical Water Infrastructure

Wells Marine provides specialist dam, reservoir and water tank inspection services for government agencies, local councils, utilities, water authorities, mining operations, industrial facilities and private asset owners throughout Sydney, New South Wales and the Australian East Coast.

Critical water infrastructure requires regular inspection to ensure structural integrity, operational performance and long-term reliability. Many essential components remain below the waterline, making commercial diving the safest and most effective method of assessing their condition without draining valuable water assets or disrupting operations.

Using experienced commercial divers, high-definition underwater imaging and specialist inspection equipment, Wells Marine delivers detailed condition assessments that support preventative maintenance, regulatory compliance and asset management programs.

Contact Wells Marine to arrange a professional underwater inspection of your dam, reservoir or water storage facility.

Comprehensive Water Infrastructure Inspection Services

Water storage and distribution assets are continually exposed to hydrostatic pressure, sediment build-up, corrosion, biological growth and ageing infrastructure.

Wells Marine provides underwater inspections for:

Dams
Reservoirs
Potable water tanks
Service reservoirs
Raw water storage facilities
Water treatment plants
Pump stations
Irrigation storage dams
Industrial water tanks
Mining water storage facilities
Fire water tanks
Stormwater detention basins
Water intake structures
Spillways
Outlet structures

Our inspections provide accurate condition reporting while allowing facilities to remain operational wherever possible.

Dam Inspections

Protecting Critical Water Assets

Dams represent some of Australia’s most important infrastructure assets, requiring regular inspection to maintain structural safety and operational performance.

Our commercial divers inspect:

Dam walls
Concrete structures
Rock foundations
Outlet towers
Intake structures
Spillways
Gates
Valves
Trash racks
Scour protection

Detailed inspections help identify deterioration before it develops into costly structural problems.

Reservoir Inspections

Maintaining Safe Water Storage

Reservoirs require routine underwater inspections to monitor structural condition, sediment accumulation and operational equipment.

Our inspections include:

Structural concrete
Embankments
Linings
Outlet structures
Inlet structures
Overflow systems
Isolation gates
Pipework
Screens
Access structures

Routine inspections support effective maintenance planning and long-term asset management.

Water Tank Inspections

Inspecting Without Draining Where Possible

Draining large water storage tanks can be expensive, time-consuming and disruptive to operations.

Where conditions and project requirements allow, Wells Marine can perform underwater inspections while tanks remain in service.

We inspect:

Concrete tanks
Steel tanks
Elevated water tanks
Potable water reservoirs
Industrial process water tanks
Fire water storage tanks

Our inspections assess both structural condition and underwater components while minimising operational downtime.

Intake & Outlet Structure Inspections

Maintaining Reliable Water Flow

Water intake and outlet structures play a critical role in water supply and treatment operations.

Our commercial divers inspect:

Intake towers
Screens
Gates
Penstocks
Valves
Pipe entries
Trash racks
Flow control structures
Isolation systems

Early identification of defects helps prevent operational interruptions and costly emergency repairs.

Structural Condition Assessments

Accurate Underwater Reporting

Our inspections identify a wide range of structural issues, including:

Concrete cracking
Spalling
Corrosion
Exposed reinforcement
Joint deterioration
Coating failures
Sediment build-up
Biological growth
Scour
Structural movement

Detailed condition assessments help engineers prioritise maintenance and plan future capital works.

Sediment & Debris Assessments

Identifying Performance Issues

Sediment accumulation and debris can reduce storage capacity, restrict water flow and affect operational efficiency.

Our inspections assess:

Sediment depth
Debris accumulation
Intake blockages
Vegetation growth
Foreign objects
Scour around structures

Inspection findings assist with planning cleaning, dredging or maintenance works.

Commercial Diving Inspections

Safe Access to Submerged Infrastructure

Commercial diving allows critical underwater infrastructure to be inspected without draining reservoirs or interrupting normal operations.

Our divers work safely in:

Potable water reservoirs
Raw water dams
Irrigation systems
Industrial water storage
Mining water facilities
Treatment plants
Pump stations

Every project is completed using industry-approved diving systems and strict safety procedures.

High-Definition Underwater Imaging

Clear Visual Documentation

Wells Marine provides detailed visual records to support engineering assessments and maintenance planning.

Documentation may include:

High-definition underwater video
High-resolution photography
Structural close-ups
Defect documentation
Measurement records
Condition comparisons
Maintenance recommendations

Visual reporting provides asset managers with a permanent record of infrastructure condition.

Asset Management Support

Better Long-Term Planning

Routine inspections provide valuable information that supports:

Preventative maintenance
Risk management
Budget planning
Compliance reporting
Capital works programming
Engineering assessments
Infrastructure lifecycle management

Early intervention often prevents expensive repairs and extends the operational life of valuable water infrastructure.

Our Inspection Process

Initial Consultation

We discuss the asset, inspection objectives and reporting requirements.

Site Assessment

Our team reviews access, water depth, operational constraints and any existing engineering documentation.

Project Planning

Detailed planning includes:

Dive methodology
Risk assessments
Equipment selection
Environmental considerations
Safety procedures
Reporting requirements

Underwater Inspection

Commercial divers complete a thorough inspection while collecting measurements, photographs and video documentation.

Reporting

Clients receive a comprehensive inspection report detailing observations, identified defects and practical maintenance recommendations.

Why Choose Wells Marine?

Experienced Commercial Divers

Our divers have extensive experience inspecting critical water infrastructure across government, industrial and commercial sectors.

Detailed Reporting

We provide clear inspection reports supported by high-definition photography and video, allowing engineers and asset managers to make informed decisions.

Specialist Inspection Equipment

Using commercial-grade diving systems and underwater imaging technology, we deliver accurate inspections in challenging environments.

Complete Marine & Underwater Services

Where inspections identify maintenance requirements, Wells Marine can also provide underwater repairs, cleaning, welding, structural restoration and ongoing maintenance.

Safety Without Compromise

Every inspection is completed using comprehensive risk assessments, project-specific dive plans and established commercial diving procedures to ensure safe and professional project delivery.

Industries We Support

Wells Marine provides dam, reservoir and water tank inspections for:

Water authorities
Local councils
Government agencies
Utilities
Water treatment facilities
Mining operations
Industrial facilities
Irrigation authorities
Civil contractors
Infrastructure asset managers
Defence facilities
Commercial property owners