Ship landing stages
Landing stages of the Achensee shipping line (Achenkirch, Pertisau, Maurach, Buchau). Inspection of berth edges.
Waters · Lake
Underwater Inspection at Achensee — Tyrol's largest lake
Achensee, with 6.8 km² and a maximum depth of 133 m, is Tyrol's largest lake — known as the “Tyrolean Sea”. The historic Achensee shipping line, hotel jetties and lido facilities around Pertisau, Maurach and Achenkirch generate a continuous inspection demand. ScanSustain inspects ROV-based down into deep areas. Actual deployments are subject to approval by the responsible local authorities, facility operators and shipping administrations.
Characteristic Structures
These structure types can be inspected ROV-based at Achensee — subject to approval from local authorities and operators:
Hotel jetties
Jetties of the hotel industry around the lake. Findings assessment of timber, steel and concrete components.
Lido facilities
Municipal lido facilities in Pertisau, Maurach. Inspection of jetty structures and bathing platforms.
Gauge infrastructure
Gauges of the Tyrolean Hydrographic Service.
Typical Damage Patterns
What can be professionally captured at Achensee — a structured overview of the locally typical damage patterns:
Timber-pile damage
Support piles: fungal attack in the fluctuating water-level zone, bore holes, pile drift.
Algae growth
Seasonal growth layers on jetty substructures.
Steep-shore findings
Steep-shore areas along the eastern Achensee shore. Findings capture of block displacements.
On-Site Methodology
Achensee water is very clear (visibility 5 to 8 m). ROV optics can be used everywhere. Sonar for the structured survey of the steep-shore bed. Deployment planning outside the main tourist season is preferred.
How Deep is Achensee?
For method selection in ROV deployments, the lake's depth profile is decisive: near-shore structures such as jetties, landing stages and lido facilities typically lie in the range of 1 to 10 m, while the lake drops off markedly towards the centre.
Maximum depth
133 m maximum. ROV systems cover the entire depth range.
Lake area
Around 6.8 km² — the largest lake in Tyrol.
Mean depth and the exact position of the thermocline vary by source and season. For projects with accuracy requirements we recommend verifying these values in advance against a current hydrographic source — we do not take them as given unchecked when planning a deployment anyway.
Survey & Mapping at Achensee
Beyond pure condition inspection, municipalities, port operators and hotel businesses at Achensee are increasingly asking for geometric data — for example for the rehabilitation planning of landing stages, the as-built documentation of high-quality hotel jetties or the bathymetric mapping of shoreline sections ahead of a construction project. With Survey & Mapping, ScanSustain offers photogrammetric and multibeam-sonar-based capture that delivers depth profiles, site plans and 3D models in CAD/GIS-ready formats.
At Achensee, the consistently clear water quality (visibility 5 to 8 m, see On-Site Methodology) supports photogrammetric detail capture across wide areas of the shore; for the structured survey of the steep-shore bed, multibeam sonar additionally delivers the reliable surface geometry. This combination is particularly relevant for gauge structures, berth edges and larger jetty facilities when a geometric baseline is needed for rehabilitation or monitoring.
Regional Authorities and Bodies
Tyrolean Hydrographic Service. Water-rights authority Bezirkshauptmannschaft Schwaz. Municipalities of Achenkirch, Eben am Achensee, Maurach. Achensee Tourism Board.
Frequently Asked Questions
How deep is Achensee?
133 m maximum. ROV systems cover the entire depth range.
Can we inspect steep-shore areas?
Yes. Steep-shore areas are captured with sonar (structured measurements) and ROV optics (detailed findings).
What is a typical response time?
From the Burgkirchen base, 1.5 to 2 hours' drive.
Does ScanSustain also offer survey and 3D mapping at Achensee?
Yes, as part of Survey & Mapping — currently as a pilot service, with photogrammetric and multibeam-sonar-based capture for depth profiles, site plans and 3D models in CAD/GIS-ready formats.
Does an ROV deployment at Achensee require official approval?
As a rule, yes. The responsible bodies are the water-rights authority Bezirkshauptmannschaft Schwaz and the affected municipalities of Achenkirch, Eben am Achensee and Maurach. We clarify responsibility in advance together with the client.
Does the great depth of Achensee require special ROV equipment?
In deep areas we work with higher positioning accuracy, as Achensee is up to 133 m deep. The clear water quality (visibility 5 to 8 m) supports optical capture even at greater depth.
Plan a deployment at Achensee
Describe your use case — within 1 to 3 working days you will receive a concrete initial assessment with method selection and an effort indication.