- Bathymetric Surveys
- Harbors & Port Surveys
- Wreckage / Salvage Surveys
HYDROGRAPHIC SERVICES
Hydrographic Inspections
Types of Hydrographic Inspection
Bathymetry Mapping
- Hydrographic Mapping
- Underwater infrastructure Inspection
- (ALB) Airborne LiDAR
Bathymetry w/ Drones - Support for Engineering Projects
Bathymetric Survey Applications
- Flood Inundation
- Contour of streams and reservoirs
- Leakage
- Scour Investigations
Inspection Sensor Technology
- 3D Multibeam Echosounder (MBES) Sonar
- Side Scan Sonar
- Sub Bottom Profiling Sonar
- Acoustic Doppler Current Profiler (ADCP)
Inspection Platforms
- Marine Vessel
- USV – Unmanned Surface Vessel
- AUV – Autonomous Underwater Vessel
- ROV – Remotely Operated Vehicle
- UAV – Unmanned Aerial Vehicle
PENSTOCK & TUNNEL INSPECTIONS
Tunnel / Penstock
Inspection Capabilities
- Min Diameter 5’
- Max Diameter 60’
- Max Distance – Flooded 10,000’
- Max Distance – Partially Flooded 2,000’
- Max Distance – Dewatered 15,000’
*All distances referenced above are based on a single entry point
Flooded
Tunnel Inspections
ROV – (Remotely Operated Vehicle)
Max Inspection Distance: 10,000’
360° Multibeam Tunnel Profiling Sonar
Partially Flooded
Tunnel Inspections
USV / ROV Hybrid
Max Inspection Distance: 2000’
360° Multibeam Tunnel Profiling Sonar (Below Water)
Mobile LiDAR scanning unit (Above Water)
Dewatered Tunnel
Inspections
UAV (Unmanned Aerial Vehicle)
Max Inspection Distance: 15,000’
Mobile LiDAR scanning unit
4K Video
Thermal Imaging
Amphibious Crawler
Max Inspection Distance: 15,000’
Mobile LiDAR scanning unit
4K Video
Deliverables
- High-Resolution 3D Point Clouds
- 3D Solid Surface Models
- 3D Deviation Models
- HD Video
UNDERWATER STRUCTURAL INSPECTIONS
Scour & Undermining Inspections
Areas of
Inspection
Dam Toe & Heel
Concrete Apron / Tailrace
Intakes
Spillways
Bridges & Piers
Inspection
Technology
- 3D Multibeam Echosounder (MBES) Sonar
- Side Scan Sonar
- High-Res 360° Scanning Sonar
- ROV Video
Concrete Spalling & Crack Detection
Areas of
Inspection
Dam Face
Gate Slots
Training Walls
Concrete Apron / Tailrace
Draft Tubes
Penstocks / Tunnels
Submerged Concrete Structures
Inspection
Technology
- 3D Multibeam Echosounder (MBES) Sonar
- Side Scan Sonar
- High-Res 360° Scanning Sonar
- ROV Video
ROV HD Video Inspections
Areas of
Inspection
All submerged areas
of Hydro Facility
Inspection
Technology
- ROV HD Video
ROV Dye Release - Leak Detection
Areas of
Inspection
Dam Face
Dam Toe & Heel
Penstocks / Tunnels
Gate Slots
Bulkheads
Intakes
Inspection
Technology
- ROV mounted Dye release pump
(UT) Ultrasonic Thickness Measurements
Areas of
Inspection
Flooded Steel Penstocks
Submerged Steel Structures
Inspection
Technology
ROV mounted (UT)
Ultrasonic Thickness Sensor