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Longitudinal Training Dams in the Waal River and their effect on the use of the fairway

AuthorsSita Indah & Yvonne Koldenhof
Conference/JournalMARIN Report 134
Date12 Dec 2022
Reading time12 minutes
As part of the final evaluation of the pilot project Longitudinal Training Dams (LTDs) in the Waal River, MARIN was asked to conduct an analysis on their impact on inland shipping using AIS data.

Three LTDs were constructed in The Waal over a length of 10 kilometres at the section Wamel-Ophemert. Unlike
traditional groynes, LTDs are parallel to the riverbank, which divides the river into a navigational and a side channel.

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MARIN Report 134 Longitudinal Training Dams in the Waal River and their effect on the use of the fairway
The main question addressed by MARIN is to what extent the constructed LTDs have an influence on the behaviour of ships. To
answer this, AIS data was analysed to compare navigational behaviour at the level of the LTDs section with the upstream and downstream sections of these longitudinal dams.