Travel

Germany

- Remains of piles have been discovered off Großenbrode, which lie just 1.5 metres below the water’s surface at mean water level.
- The obstruction is situated near the entrance to the Großenbroder Binnensee on a busy route towards Fehmarnsund.
- It is unclear how long the obstacle went unnoticed and whether it will be removed or, for example, marked with a buoy.

Baltic Sea: Remains of piles at a depth of just 1.5 metres – danger off Großenbrode

- The shipworm Teredo navalis has historically caused damage to wooden harbour structures, leading to closures and causing millions in damage in the North Sea and the Baltic Sea.  
- Climate change, improved water quality and timber construction are fuelling massive infestations in places such as Bremerhaven, Wismar, island harbours and Baltic Sea seaside resorts.  
- Marinas made of steel or concrete are usually spared, but indirect consequences include closed quays, diversions and restricted infrastructure.

Shipworm: Bremerhaven sounds the alarm

- Invasive species are spreading rapidly through shipping and climate-related factors, causing damage to boats, harbours and pipelines, and altering ecosystems.
- Introduced mussels, worms, algae and jellyfish cause massive fouling problems, blockages and health risks, sometimes within a matter of weeks.
- It is considered impossible to completely eradicate established species; prevention, monitoring and, in some cases, regulatory adjustments to the natural environment are recommended.

Invasive species: Kill them, eat them – or wait and see?

- Binnen Skipper brings together information on sailing areas and offline nautical charts for five Bavarian lakes; basic functions are available free of charge.  
- Free features: anchor alarm, DWD severe weather warnings, storm warning lights, emergency contacts, logbook (with restrictions).  
- The Pro version, priced at €14.99, offers advanced weather models, wind routing, detailed trip analysis, export functions and widgets.

“Binnen Skipper”: An app for five Bavarian lakes

- Low water levels mainly affect the Rhine, the Danube and Lake Constance; the calculated navigable channel depth is the decisive factor for shipping, not the water level.
- On the Rhine, the navigable channel depth is calculated from the water level, the equivalent water level (GIW) and the target navigable channel depth; values vary from section to section.
- On the Danube, the regulated low-water level (RNW) serves as the reference value; some eastern waterways report navigable channel depths or draught/unloading depths directly.

Waterways: Channel depths – how deep the water really is

- Due to cable-laying works in the Jade, eastern and western alternative navigation channels will be in force until 22 September.
- The alternative navigation channels are located east of buoys 34–38 and west of buoys 35–39 respectively; Details can be found in BfS (T)115/26.
- Yellow buoys with black lettering ‘NC 1–6’ and Fl. lighting mark the construction site; these will be removed by BfS once construction is complete.

Außenjade: Alternative navigation channel for cable laying

- Water levels are measured several times a day on all navigable waterways, but do not provide any direct indication of the actual water depth.  
- For vessels, the guaranteed minimum navigable depth is crucial; this is measured at the highest level of the navigation channel’s bed, not the water level.  
- The daily water level is measured from zero level, which does not coincide with the riverbed or the target riverbed level, as the riverbed and current frequently change.

Waterways: Water levels and gauges – what they reveal and what they don’t

- The new Kattwyk railway bridge over the Süderelbe will be closed from 17 August 2026, 8.00 am, until 28 August 2026, 6.00 pm, for maintenance work.  
- Any changes to the closure times will be announced by the Hamburg Port Authority via a notice to inland waterway vessels (NfB).  
- The two parallel Kattwyk bascule bridges are accident-prone and are among the largest in Europe; the new railway bridge was completed in 2020.

Hamburg: Bridge works – Süderelbe to be closed for twelve days

- According to recent measurements, there are 15–16 million m³ of sludge in the Steinhuder Meer, around 1–1.5 million m³ more than in 2019.  
- Between 52,000 and 64,000 m³ of new silt is produced each year, but only 30,000–40,000 m³ has been removed so far; the lake development plan focuses on more dredging and reduced nutrient levels.  
- The VESM is calling for significantly more intensive dredging and additional storage areas, as otherwise sailing conditions and fair regattas will be jeopardised.

Steinhuder Meer: 1.5 million cubic metres more sludge

- The state has definitively halted the ‘Missunde III’ project following setbacks and a rise in costs to around 6.5 million euros
- “Missunde II” is due to enter the shipyard after the summer season and is set to take over ferry services; planning for a possible new ferry begins
- The Ministry of Transport is examining claims for damages against the design firm; the Schlei crossing is used by 120,000 vehicles and 50,000 bicycles annually

‘Missunde III’ has failed: the state pulls the emergency brake and plans a fresh start

- Neufeld Harbour is expected to be available for limited use only until the end of April 2027 due to work to reinforce the base of the dyke; the cost is around two million euros.
- The local council is investing around 700,000 euros in new floating jetties and bridges; it is unclear whether this sum will be sufficient for the project.
- Despite the loss of some moorings, berths for visiting boats remain available; more moorings and modern infrastructure are planned for after 2027.

Dithmarschen: Construction work at Neufeld Harbour

- Historically low water levels on the Rhine, the Danube and other waterways are leading to massive restrictions on shipping early in the year.  
- The economic consequences are significant; the waterway network is regarded as an infrastructure that is virtually irreplaceable for freight transport; Bilger calls for a crisis meeting.  
- The new official NIWIS portal displays colour-coded, up-to-date low-water data for over 300 waterways, based on long-term measurement series and threshold values.

Germany: NIWIS – a new information portal for low water levels

Germany's most beautiful sailing areas by yacht: Important tips for travelling and chartering sailing boats in Germany ►

Sailing areas in Germany: The best routes & sailing areas

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Sailing areas in Germany: The best routes & sailing areas

Baltic Sea
Remains of piles at a depth of just 1.5 metres – danger off Großenbrode

Shipworm
Bremerhaven sounds the alarm

Invasive species
Kill them, eat them – or wait and see?

“Binnen Skipper”
An app for five Bavarian lakes

Waterways
Channel depths – how deep the water really is

Außenjade
Alternative navigation channel for cable laying

Waterways
Water levels and gauges – what they reveal and what they don’t

Hamburg
Bridge works – Süderelbe to be closed for twelve days

Steinhuder Meer
1.5 million cubic metres more sludge

‘Missunde III’ has failed
The state pulls the emergency brake and plans a fresh start

Dithmarschen
Construction work at Neufeld Harbour

Germany
NIWIS – a new information portal for low water levels

Sailing areas in Germany: The best routes & sailing areas

Baltic SeaRemains of piles at a depth of just 1.5 metres – danger off Großenbrode

ShipwormBremerhaven sounds the alarm

Invasive speciesKill them, eat them – or wait and see?

“Binnen Skipper”An app for five Bavarian lakes

WaterwaysChannel depths – how deep the water really is

AußenjadeAlternative navigation channel for cable laying

WaterwaysWater levels and gauges – what they reveal and what they don’t

HamburgBridge works – Süderelbe to be closed for twelve days

Steinhuder Meer1.5 million cubic metres more sludge

‘Missunde III’ has failedThe state pulls the emergency brake and plans a fresh start

DithmarschenConstruction work at Neufeld Harbour

GermanyNIWIS – a new information portal for low water levels

Baltic Sea
Remains of piles at a depth of just 1.5 metres – danger off Großenbrode

Shipworm
Bremerhaven sounds the alarm

Invasive species
Kill them, eat them – or wait and see?

“Binnen Skipper”
An app for five Bavarian lakes

Waterways
Channel depths – how deep the water really is

Außenjade
Alternative navigation channel for cable laying

Waterways
Water levels and gauges – what they reveal and what they don’t

Hamburg
Bridge works – Süderelbe to be closed for twelve days

Steinhuder Meer
1.5 million cubic metres more sludge

‘Missunde III’ has failed
The state pulls the emergency brake and plans a fresh start

Dithmarschen
Construction work at Neufeld Harbour

Germany
NIWIS – a new information portal for low water levels