Further charts are available at the following websites:

 USAUS Army Corps of Engineers
Army GeoSpatial Center
 Croatiavodniputovi
 Republic of SerbiaPlovput
 RomaniaAdministration of the Lower Danube
 NetherlandsFIS portal Niederlande
 Czech RepublicGeoportal SPS Praha
 GermanyELWIS
 SlovakiaSVP
 HungaryPannonRIS
 BulgariaEAEMDR
 UkraineState Hydrographic Service of Ukraine
 SwitzerlandPort of Switzerland
 BelgiumFlandern
 PolandDepartment of Inland Waterway
 FranceVoies navigables de France