Danube · km 1868.75
No depth reports available from SVP.
Water depth is not draught. Platform Zero Incidents cites a safety margin of 20–40 cm based on German case law, depending on the riverbed, vessel type and good seamanship. This is not a fixed legal minimum. Under-keel clearance is the space between the vessel and the bed. Dynamic squat while underway reduces that space. Viadonau gives 20–40 cm as a guide for squat. Meeting and overtaking can increase it further; MARIN describes an overtaking manoeuvre with more than 70 cm of squat. Sources: Platform Zero Incidents, CCR, German court ruling, viadonau, MARIN
On 28/10/2026 at 17:30 the Bratislava gauge read 293 cm, 1 cm higher than 24 hours earlier. Source: SHMÚ.
Gauge Bratislava is on the Danube at kilometre 1868.75, on the km 1873.2–1851.7 stretch.
At LDC (SlovRIS) 233 cm, the site uses 250 cm fairway depth and a 30 cm margin: Bratislava -13. This is a reference calculation, not a current sounding. The Danube Commission gives no RNW for this gauge; the 233 cm is SlovRIS's reference low water (LDC).
Depth reports: SVP.
Water-level forecasts: the 2-day forecast from SHMÚ (red) and the 1-day forecast from SlovRIS (blue). Upstream lies Thebnerstraßl, downstream Čunovo and Sap.