Tunnels (road, rail, utility)
Lining condition, joint mapping, ventilation duct integrity and cross-passage condition recorded between revenue services or in single-tube closures.
Inspect public assets that cannot be taken offline.
Tunnels carry traffic. Reservoirs feed cities. Dams hold the line. Sewers run twenty-four hours. Scout 137 flies the inspections that traditionally need closures, dewatering or rope teams, and leaves the asset in service while the data lands in the integrity record.
Where Scout 137 flies
Four asset families. One drone. Public service uninterrupted.
Reservoirs & water treatment
Drained service reservoirs, clarifier basins and inlet works. Concrete spalling, coating breakdown and roof condition captured without crew entry.
Dams & spillways
Dam face, spillway chutes, stilling basins and outlet works. Survey-grade point cloud for the dam-safety dossier and the inspector.
Sewers & wastewater
Trunk sewers, interceptors and combined-sewer overflows. Defect mapping, atmosphere check and 3D point cloud without confined-space entry.
The challenge today
The backlog is real. The closure window is not.
Stay open
The asset keeps carrying traffic, water or flow while the drone inspects.
Days → hours
A closure window the operator can actually grant, instead of days offline.
Zero
Confined-space entries when the drone records the evidence first.
One pass
Visual, gas and 3D in a single flight, every defect tagged to chainage.
Closures cost the public. Confined-space entries cost the inspector. Rejected reports cost the asset owner twice. Scout 137 attacks all three lines.
How Scout 137 changes it
See. Measure. Locate. Inside the asset, between revenue hours.
Three capture streams from one tethered drone, flown in the closure window the operator can actually grant. Scout Portal merges the streams into a single report for the asset register.
See
4K Zoom Camera
Concrete cracking, lining defects, water ingress and coating breakdown recorded at survey resolution. The asset engineer sees what the inspector saw.
Explore
Measure
Ultrasonic Testing
Live UT with built-in surface brush and couplant deployment: the flagship measurement payload, replacing rope access and scaffolding with readings on first contact.
ExploreGas Detection
Continuous flammable-gas (%LEL) monitoring in sewers, utility tunnels and confined chambers: methane and 13 other combustibles, logged with the flight. A safety supplement, not a substitute for confined-space clearance.
ExploreMore payloads coming
The modular payload bay is built to grow. We won't spoil what's next, but we listen to what the industry whispers about. Got an inspection problem we should solve?
Locate
3D LiDAR
Survey-grade point cloud of tunnel bore, reservoir interior or spillway face. Every defect tagged to chainage and exported to the asset register.
ExplorePoint Cloud
Every flight exports a survey-grade point cloud of the asset interior, flight path included. Drop it straight into digital twins, BIM workflows, CAD models, and as-built documentation.
ExploreA record you can trust
Evidence that the dam-safety inspector and the utility regulator can rely on.
Every capture is time-stamped and geo-anchored to the asset 3D model, assembled in Scout Portal into one complete, repeatable record your asset register already uses, with every defect tagged to chainage. It gives you data suitable for dam-safety, tunnel and sewer-condition review (FERC, ICOLD, EN 13508).
See it fly
A stormwater overflow pipeline, flown end to end.
Scout 137 inside a large stormwater overflow pipeline at Sluppenvegen, capturing crisp footage and a survey-grade point cloud, with sector experts from VIVAX on site.
Field record: Sluppenhølet, Trondheim with VIVAX
Field record
“By obtaining precise measurements from the drone, we know exactly how much space we have to work with and can accurately calculate how much rock needs to be removed in areas where there isn’t enough room for reinforcement today.”
Johnny Skår Statens Vegvesen (Norwegian Public Roads Administration)
Road-tunnel inspection survey-grade 3D for maintenance planning
Read the case
Proof from the field
Real inspections. Real data.
Drone-Based Tunnel Inspections: Safer, Smarter and More Efficient
From limited access to full visibility. A drone-based workflow that improves safety, efficiency, and inspection coverage.
Steinkjer Water Treatment Plant
As part of the European Union funded RIMA INOWATT project ScoutDI demonstrated that our drone system enabled safe and easy inspection of the Løsberga Water Treatment Plant.
Maritime & offshore
Cargo holds, ballast tanks, FPSOs, turbine foundations. Inspection without entry, output ready for class survey.
Explore →
Onshore oil & gas
Refineries, storage tanks, pressure vessels, columns. Land-based process facilities. Visual plus UT, in one flight.
Explore →
Power generation
Penstocks, boilers, flue stacks and spillways — plus reactor containment. Hydro and thermal assets surveyed without dewatering or scaffolding.
Explore →
Mining & underground
Active shafts, stopes, abandoned workings. Proven at 400 m mine depth.
Explore →
Class survey
DNV, Bureau Veritas, LR, ABS, and API workflows. Inspection output that passes class review across marine, energy, and asset integrity.
Explore →Talk to us
Close the backlog without closing the asset.
Book a live demo with our infrastructure team. Bring your closure window, your backlog and the format your asset register expects. We will fit the workflow around all three.