Denmark: King Christian X Bridge in Sonderborg to be closed
YACHT
· 24.05.2026
The King Christian X Bridge in Sonderborg is a bottleneck in the Belte and Sund area and separates the Alsensund from the Flensburg Outer Fjord. The structure will be partially closed for repair work in May and June. In order to maintain the operational safety and functionality of the bridge, cracks in the steel must be repaired and the decking on parts of the bascule bridge sections must be renovated. During the affected periods, the bridge flaps cannot open or can only open irregularly as work is being carried out on the underside of both flaps. Passage will remain possible with a clearance height of five metres during the entire period. The free headroom refers to the daily water level at zero elevation. The clearance height under the flap field is 4.5 metres. The municipality is planning the project in such a way that the disruption to commercial and recreational boating is minimised.
The bridge flaps will be completely closed in week 22 from Wednesday, 26 May to Friday, 30 May. During these three days, daytime work will take place under and on the bridge flaps.
Final work at the beginning of June
The final work will take place on Monday, 1 June and Tuesday, 2 June. In week 23, daytime work will again be carried out under the bridge. As at the start of the work, the bridge will only be opened every two hours during normal opening hours. The project is not carrying out any work on the bridge's arch and sea spans. Free passage will be guaranteed throughout the entire period. Ships that do not exceed the clearance height of five metres can pass the bridge continuously.
Timetable of the closures in Sonderborg:
Week 22 (26-30 May):
- Wednesday, 26 May - Friday, 30 May: Daytime work under and on the bridge flaps
- Status: Complete closure of the bridge flaps
Week 23 (1 - 2 June):
- Monday, 1 June - Tuesday, 2 June: Daytime work under the bridge
- Bridge openings: Only every two hours during normal opening hours
