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Water level data

In this area you will find useful links to water level and high water data. You will find the current water level at Basel-Rheinhalle on the home page.

The water level at Basel-Rheinhalle is measured opposite the estuary of the Birs.

Other water level data for European inland waterways is supplied by the Electronic Waterways Information Service ELWIS.


Map of the Rhine Knee

All relevant water level data between Rheinfelden and Basel can be found on the map of the  Rhine Knee (German).

Other water level data for European inland waterways is supplied by the Electronic Waterways Information Service ELWIS


Water level and outflow rate forecasts

The Swiss Federal Agency for the Environment issues prognoses for the water levels and outflow rates. The water level is indicated in metres above sea-level. The level at "Basel-Rheinhalle", however, is measured in centimetres. A water level of 247.20 metres above sea-level thus corresponds to a level of 720 cm.

Prognoses of water level: Forecast graph | Forecast table

Other hydrological bases and data from the Swiss Federal Agency for the Environment


Current water levels and vertical clearance for the "Mittlere Rheinbrücke"

Overview of diagrams (current water levels between Basel and Rheinfelden, current vertical clearance for "Mittlere Rheinbrücke", water levels of the past 2, 7 and 31 days)

Water level data table (water levels in past week, daily values at 05:00, 13:00, 21:00)


High-water marks and outflow rates Basel-Rheinhalle

This is based on the water level at Basel-Rheinhalle, which is shown on the home page.

Water level 700 cm (high water mark l): corresponds to a pre-alarm.

Water level 790 cm (high water mark IIb): Block on all large vessel navigation between Basel (Middle Rhine Bridge) and Birsfelden as well as on small vessel navigation and ferry operations between Basel and Rheinfelden.

Water level 820 cm (high water mark IIa): Block on navigation between Rheinfelden and the locks at Kembs.

The official basis for this is Factsheet for Inland Navigation No. CH 12/06. (German)

High water mark Level at Basel-Rheinhalle Outflow quantity at Basel-Rheinhalle
I 700 cm approx. 1800 m3/s
IIa 820 cm approx. 2750 m3/s
IIb 790 cm approx. 2500 m3/s
IIc 850 cm approx. 3000 m3/s