There is no single map that answers every inland-shipping question. A network map shows connections. A navigation service adds time-sensitive restrictions. A historical LNG map records projects at a point in time. Choosing the right source starts with naming the decision you are trying to make.
This directory replaces the subject of a former LNG-map address with a clear route to appropriate information. It is not the old interactive map, an operating-status feed or a promise that a listed LNG facility can supply a vessel. Links and descriptions were reviewed on 10 November 2026.
For current waterway information
- EuRIS: the official portal offers waterway information and voyage-computation controls. Open the service itself for current values, timestamps and route options.
- EuRIS Notices to Skippers: the map describes notices currently in force that include a limitation and are published by participating partners. Read the complete notice, its validity period and affected section.
- CCNR’s Rhine information page: a gateway to national water-level and navigation-information services. Useful when you need to find the responsible source for a particular stretch.
Do not copy a value into a planning sheet without its unit, location, time and source. A water-level reading, available depth and bridge clearance are different measurements. A number that looks precise can still answer the wrong question.
For network structure and route research
- UNECE’s Blue Book: an infrastructure inventory comparing waterway and port parameters against the European network framework. Use it for structural questions; it is not a notice service.
- viadonau’s 2019 Manual on Danube Navigation: a substantial introduction to the corridor, vessels, ports and transport system. Keep its edition date attached to specifications.
- viadonau’s manual directory: a route to the navigation manual and the separate border-control handbook. Check the edition relevant to your question.
For LNG history
Begin with our dated LNG project register and fuel overview. The historical Pro Danube announcement explains the earlier Observatory’s database-and-map concept. The LNG Masterplan link directory preserves references to the old database and map; access to that directory has been inconsistent during checks.
These historical links establish context, not an active service. To establish current LNG availability, seek a dated answer from the relevant facility or supplier covering the location, delivery mode, vessel compatibility and booking conditions. A map symbol cannot settle those details.
A simple source-selection routine
Write one sentence before opening a map: “I need to know whether this connection exists,” “I need a restriction for this date,” or “I need evidence that a project was built.” Then select the source for that question. Record what remains unknown alongside what you find.
For a presentation, a source-dated schematic can be enough. For a voyage, an attractive screenshot is not enough. Return to the authoritative service, inspect the relevant notices and use the vessel operator’s navigation procedures. Good research keeps those two uses distinct.