TOSTERÖBRON (SWING BRIDGE) Commercial shipping shall request for bridge opening via VHF Ch 68 (pleasure boats via VHF Ch 14) between 0600-2200 LT, call TOSTERÖBRON. At other times phone + 46 171-44 90 82. Opening requests shall be done in good time before passage. 8 minutes before estimated passage the vessel must call the bridge again for affirmation. Bridge signals: Iso R 3s Bridge is closed. Iso R 3s + Iso W 3s Signal acknowledged. Iso R 3s + F W Bridge about to be opened. Iso G 3s Bridge open - proceed.