Waters · Lake

Underwater Inspection at Lake Tegernsee — Bavaria, dense hotel infrastructure

Lake Tegernsee, with 9 km² and a maximum depth of 72.6 m, is shaped by dense hotel infrastructure, private jetties and the Tegernsee shipping line. The high value density of the lakeside facilities creates a continuous inspection demand with exacting quality requirements. ScanSustain inspects ROV-based across the entire depth range. 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 Lake Tegernsee — subject to approval from local authorities and operators:

Ship landing stages

Landing stages of the Tegernsee shipping line (Tegernsee, Rottach-Egern, Bad Wiessee, Gmund). Inspection of berth edges and bed findings.

Hotel and gastronomy jetties

Jetties of the high-quality hotel sector around the lake. Components of larch, oak and tropical timber, concrete downstand beams, steel connectors. Findings capture with damage classification for asset preservation.

Private boathouses

High density of boathouses along the west and east shores. Inspection of the waterside components, support piles and the boathouse entrance area.

Gauge and measuring stations

Gauge structures of the Bavarian State Office for the Environment (Tegernsee, Gmund).

Typical Damage Patterns

What can be professionally captured at Lake Tegernsee — a structured overview of the locally typical damage patterns:

Timber-pile damage patterns

High-quality timbers with fungal attack in the water-level fluctuation zone, bore holes, local cavities. Findings capture with value reference.

Algae growth on jetty substructures

Seasonal growth, quantity capture as a basis for cleaning and maintenance planning.

Value documentation of hotel and private jetties

High-quality jetties are surveyed as part of value-retention and insurance documentation. Condition capture of the load-bearing components, comparison with the previous inspection as a time series.

On-Site Methodology

Tegernsee water is clear (visibility 3 to 6 m). ROV optics primary, sonar complementary for structured measurements. Inspections preferably outside the main tourism season (April–May, October–November). The hotel jetties are often inspected on a recurring basis (every 3–5 years) as part of value-retention programmes.

Open the method-selection wizard

How Deep is Lake Tegernsee?

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

72.6 m — ROV systems cover the entire depth range.

Lake area

Around 9 km².

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 Lake Tegernsee

Beyond pure condition inspection, municipalities, hotel businesses and engineering offices at Lake Tegernsee are increasingly asking for geometric data — for example for the rehabilitation planning of landing stages, the as-built documentation of high-quality hotel and gastronomy 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 Lake Tegernsee, the clear water quality (visibility 3 to 6 m, see On-Site Methodology) enables a good combination of optical detail capture and complementary sonar for the structured 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.

In preparation: Survey & Mapping is being expanded into a regular service. For pilot projects and preliminary enquiries at Lake Tegernsee we are already available now.

View Survey & Mapping

Regional Authorities and Bodies

Bavarian State Office for the Environment. Rosenheim Water Management Office. Miesbach District Office. Municipalities of Tegernsee, Rottach-Egern, Bad Wiessee, Gmund, Kreuth.

Frequently Asked Questions

Are hotel jetties inspected on a regular recurring basis?

Yes. Hotel jetties are usually inspected every 3 to 5 years. We deliver data as a time series that documents the growth of the damage pattern in a traceable way.

What does a jetty inspection at Lake Tegernsee cost?

We do not quote flat-rate prices — the effort depends on jetty size, complexity and the desired reporting level. Our effort indicator on the services page gives you a concrete effort indication.

What travel time is typical?

Tegernsee is reachable from Burgkirchen in about 1.5 to 2 hours. We usually plan Tegernsee deployments as a 2-day on-site stay, in order to efficiently work on several jetties or facilities.

Does ScanSustain also offer survey and 3D mapping at Lake Tegernsee?

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 Lake Tegernsee require official approval?

As a rule, yes. The responsible bodies are the Bavarian State Office for the Environment, the Rosenheim Water Management Office, the Miesbach District Office as well as the municipalities of Tegernsee, Rottach-Egern, Bad Wiessee, Gmund and Kreuth. We clarify responsibility in advance together with the client.

Are the landing stages of the Tegernsee shipping line also part of the inspection?

Yes, the ship landing stages of the Tegernsee shipping line in Tegernsee, Rottach-Egern, Bad Wiessee and Gmund are among the characteristic structures we examine for berth-edge and bed findings.

Plan a deployment at Lake Tegernsee

Describe your use case — within 1 to 3 working days you will receive a concrete initial assessment with method selection and an effort indication.

Request an initial assessment

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