STRMMA KANAL
Traffic signal at the entrances of the canal:
Fl Y		Stand by outside the entrance.

Bridge signals:
Iso R 4s		Bridge is closed.
Iso R 4s + Iso W 4s	Signal acknowledged.
Iso R 4s + F W		Bridge about to be opened.
Iso G 4s		Bridge open - proceed.

Opening hours after prior notification to the bridge master. 
Contact details: www.sjofartsverket.se

Opening is available 5 minutes past each full and half hour.
1 May - 31 May and 1 Sep - 15 Oct: 0905 - 1205, 1305 - 1535
1 Jun - 31 Aug: 0905 - 1205, 1305 - 1535 and 1805 - 2005
16 Oct - 30 Apr: Bridge closed.