<< INDEX >> NOTES CAUTIONS NAVIGATIONAL SAFETY POSITION REPORT TIDAL CURRENTS GLOSSARY NOTES Related Japan Coast Guard publications are recommended to use. Always use the largest scale chart appropriate and keep charts and publications updated. CAUTIONS 1. Undiscovered shoals may exist around charted shoals. Mariners are advised to exercise caution. 2. Depths are very changeable at the entrance to river mouths. Mariners are advised to exercise caution. 3. Ranges of lights shown on this chart are the least values of either nominal ranges or geographic ranges. NAVIGATIONAL SAFETY (Kanmon Kaikyo and Adjacent Waters) 1. Vessels equipped with VHF should maintain contact with Kanmon Kaikyo Vessel Traffic Service Center (CH16, 156.8MHz) while navigating in the traffic routes, approaches to the traffic routes and the adjacent sea area, as information for the safety of navigation may be provided by the Center. 2. The Kanmon Kaikyo Vessel Traffic Service Center gives guidance to the following vessels in order to avoid meeting another vessel in Hayatomo Seto Fairway. Hayatomo Seto Fairway is that part of Kanmon Passage between the W line of Kanmon Bridge and a line drawn 130 from Hinoyamashita Signal Station. (1) Between general cargo vessels: Each vessel of 10,000 G/T and over. (2) Between oil tankers: Each vessel of 3,000 G/T and over. (3) Between a general cargo vessel and an oil tanker: A general cargo vessel of 10,000 G/T and over, and an oil tanker of 3,000 G/T and over. 3. Vessels may be instructed to wait off the passage under certain conditions (including poor visibility). Vessels unable to maintain a ground speed of 4 knots against the tidal stream in Hayatomo Seto may be instructed to wait off the passage. POSITION REPORT Vessels should report to Kanmon Kaikyo Vessel Traffic Service Center as following; Vessels Time to report Items of report -------------------------------------------------------------------------------------------- Vessels of 300G/T and upward but When crossing the Vessels name, call sign, less than 10,000G/T (for oil carries, position report line abbreviation of position 3,000G/T) (excluding vessels equipped reporting line, gross with and operating AIS) which are tonnage, draft, navigating into Kanmon passage and destination Kanmon passage No 2. -------------------------------------------------------------------------------------------- Vessels of 10,000G/T (for oil carriers, When crossing the Vessels name, call sign, 3,000G/T) and upward which are position report line abbreviation of position navigating into Kanmon passage and reporting line Kanmon passage No 2. -------------------------------------------------------------------------------------------- Vessels of 300 G/T and upward which When leaving the Vessels name, call sign, 3,000G/T) and upward which are berth. However, abbreviation of position (excluding Hibiki-Shinko Ku and Shin- vessels leaving reporting line, gross Moji Ku). Wakamatsu passage, tonnage, draft, western area of the destination line WA when crossing the line WA, vessels leaving from Chofu Ku when crossing the line CS. -------------------------------------------------------------------------------------------- Vessels towing, pushing or bringing When crossing the Vessels name, call sign, alongside objects (excluding vessels position report line. abbreviation of position which are equipped with and operating However, vessels reporting line, gross AIS) which are navigating in Kanmon leaving Wakamatsu tonnage, draft, passage and Kanmon passage No 2. passage, western destination, length in area of the line WA the case of vessels when crossing the towing an object line WA, vessels leaving from Chofu ku when crossing the line CS. -------------------------------------------------------------------------------------------- TIDAL CURRENTS Hayatomo Seto In the mid-channel the E-going and W-going currents achieve their maximum rates at about the time of LW and HW, respectively, at Dannoura. Near the shore on either side of the channel the maximum rates occur about 30 minutes earlier than in the middle part. The E-going and W-going currents regularly occur twice a day, but caution should be exercised during neap tides, especially in spring and autumn and in winter when the wind blows continuously from between N and W, when the W-going and E-going currents may occur only once a day for 2-3 days, the latter flowing for over 10 hours. The W-going current is strongest in an area about 2000m in length and 150-350m in width extending south-westwards along Kanmon Passage between Moji Saki and Shimonoseki, while the E-going current is strongest in an area about 1200m in length and 200-300m in width extending north-eastwards along the passage between Moji Saki and Shimonoseki. Eastward of Hayatomo Seto, Off Chofu-Takaba Tidal currents along the main route turn 10-20 minutes later than in Hayatomo Seto. South of Manju Shima they turn about 30 minutes earlier, on the E or W side of the island about 1.5 hours later, and in the vicinity of He Saki 1-1.5 hours earlier, than in Hayatomo Seto. From West Entrance of Hayatomo Seto to East Entrance of O Seto Tidal currents along the main route turn about 30 minutes earlier than in Hayatomo Seto, but near to the shore the currents turn earlier than in Hayatomo Seto. The nearer to the shore, the earlier the current turns: 3-4.5 hours earlier in Moji Ku. Between Hiko Shima and Ganryu Shima Tidal currents in the mid-channel turn almost at the same time as in Hayatomo Seto, but near to the shore on either side of the channel, the currents turn about 30 minutes earlier than in Hayatomo Seto. O Seto Tidal currents in the mid-channel and either side of the channel turn about 30 minutes earlier than in Hayatomo Seto. Westward of O Seto Tidal currents in the mid-channel S of Hika Shima turn about 10 minutes later than in Hayatomo Seto, but near to the shore on either side of the channel, the currents turn about 20 minutes earlier than in the mid-channel. For details, consult Miscellaneous Chart No 6214 "Tidal Current Charts in Kanmon Kaikyo" and Pub No 781 "Tide Tables, Vol 1". GLOSSARY Hana ------ point Kawa ------ river Ko -------- harbour, port Ku -------- area Misaki ---- cape Ne -------- rock Saki ------ cape San ------- mountain Shima ----- island, islet Se -------- shoal Suido ----- channel Take ------ mountain Wan ------- bay Yama ------ mountain -------- New,20180914,JP,JP,graph,chart0135