Croatia is served by inland navigation on the Sava and the Drava, the two most important right-bank tributaries of the Danube. Upstream of the border with Serbia, the Sava is a winding, free-flowing river offering restricted navigability over a distance of 376km to Zagreb, as well as on its tributary, the Kupa river, to Sisek. However, under the national strategy for construction and improvement of inland waterways, it is planned to improve navigability of the river to European Class IV standards by 2005, and to Class V standards by 2010. Works would be agreed with Bosnia-Herzegovina, with which the Sava forms the border for most of the length upstream of Serbia. The project is closely bound up with construction of the Danube-Sava Canal, 61km in length. Planned for more than 30 years, the canal would open up a route for inland shipping to Hungary and Western Europe 400km shorter than the existing route via Belgrade and Novi Sad on the Danube…