The Theemsweg route is approximately 4 km long ,and runs from the Merseyweg, over a raised railway viaduct along the Theemsweg, and via the Neckarweg to the Moezelweg. The track passes 2 arched bridges (Thomassentunnel and Rozenburgseluis). Near the A15 motorway, it rejoins the existing railway track.

There is an existing windshield along the Neckarweg to protect shipping traffic on the Caland Canal from west wind. The route crosses 3 existing screens, type 'Zuidscherm'. These are removed. A new screen is created behind the existing screen.