<< INDEX >> NOTES CAUTIONS NAVIGATIONAL SAFETY SECTION WHERE VESSELS MUST USE THE TRAFFIC ROUTES POSITION REPORT GLOSSARY TIDAL CURRENTS NOTES 1. Related Japan Coast Guard publications are recommended to use. Always use the largest scale chart appropriate and keep charts and publications updated. 2. Hanshin Ko Osaka Ku (South Harbour Fairway) Vessels of 5,000 G/T and over intending to enter or depart through South Harbour Fairway, which is described below, shall notify the Harbour Master of estimated time of arrival in the vicinity of the entrance of South Harbour Fairway, or estimated time of departure, by noon of the day before the estimated date of arrival or departure. South Harbour Fairway is the sea area between the line connecting the points (1) to (3) and the line connecting the points (4) to (6). (1) 113 degrees 570m from the Osaka Nanko North Breakwater Light (34-37-43N, 135-23-48E) (2) 213 degrees 70m from the Osaka Nanko North Breakwater Light (3) 298.5 degrees 520m from the Osaka Nanko North Breakwater Light (4) 141 degrees 660m from the Osaka Nanko North Breakwater Light (5) 204 degrees 380m from the Osaka Nanko North Breakwater Light (6) 269.5 degrees 620m from the Osaka Nanko North Breakwater Light 3. Hanshin Ko Sakai-Senboku Ku (Sakai Fairway) Vessels of 3,000 G/T and over intending to enter or depart from Sakai-Senboku Ku Section 2 or Section 3 through Sakai Fairway, which is described below, shall notify the Harbour Master of estimated time of arrival in the vicinity of the entrance of Sakai Fairway, or estimated time of departure, by noon of the day before the estimated date of arrival or departure. Sakai Fairway is a part of Sakai Passage east of the line drawn at 29 degrees from the point 301 degrees 2,540m from Sakai Signal Station. 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 1. Vessels equipped with VHF should maintain contact with Osaka Wan 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. Designated Route in the Sea Area Near the West Entrance of Akashi Kaikyo Traffic Route (1) Vessels which are of 5,000G/T and upwards and have navigated westward along the Akashi Kaikyo Traffic Route shall navigate to the north side of Line a. (2) Vessels which are of 5,000G/T and upwards and will navigate eastward along the Akashi Kaikyo Traffic Route shall navigate to the south side of Line a. 3. Designated Route in the Sea Area Near the East Entrance of Akashi Kaikyo Traffic Route (1) Vessels which are of 50m in length and upwards and will navigate westward along Akashi Kaikyo Traffic Route shall - Navigate to the north side area of Line a and - Navigate by crossing Line b (The line of 180 degrees 2,300m drawn from the point of 139 degrees 2,350m from the Hiraiso Light Beacon). (2) Vessels which are of 50m in length and upwards and have navigated eastward the Akashi Kaikyo Traffic Route shall - Navigate to the south side of Line a; and - Navigate in the sea area more than 200m off the point of the Akashi Kaikyo Traffic Route Eastern Side Light Buoy. 4. Designated Route in the North of Osaka Wan (1) Vessels which are of 500G/T and upwards and will navigate by crossing Line B after crossing Line A should navigate in the area to the north of Line C. (2) Vessels which are of 500G/T and upwards and will navigate by crossing Line A after crossing Line B should navigate in the area to the south of Line C. 5. Designated Route in the Sea Area Near Sumoto Offing Light Buoy and Yura Seto (1) Vessels intending to proceed to Osaka Wan northward from Yura Seto and vessels approaching Yura Seto southward from Osaka Wan should navigate with a view of the Sumoto Offing Light Buoy on the port side. (2) Vessels intending to transit through Yura Seto should keep to the starboard side of the Line D (The line of 180 degrees 3,380m drawn from the point of 315 degrees 2,660m from the Tomogashima Light House). 6. Vessels may be instructed to wait off the traffic route under certain conditions (including poor visibility). * For detailed information on the designation of tracks, consult Pub.No. 303, Seto Naikai. SECTION WHERE VESSELS MUST USE THE TRAFFIC ROUTES In the case of navigation between line A and line B indicated by a broken line, vessels must use the whole of Akashi Kaikyo Traffic Route. POSITION REPORT Vessels of 50m in length and upwards and vessels towing or pushing objects with an overall length of 100m and upward (excluding vessels which are equipped with and operating AIS) should report to the Osaka Wan Vessel Traffic Service Center, when first crossing the Position Reporting Line. Information to be reported; - vessels name and call sign - present position or Position Reporting Line crossed (abbreviation) and time of crossing. TIDAL CURRENTS In the central part of Akashi Kaikyo, the W going (E going) current flows from about 3 hours after L W (H W) to about 3 hours after H W (L W) at Akashi, the W going (E going) current becomes strongest at H W (L W). For details, consult Miscellaneous Chart No 6227 "Chart of Tidal Streams in Akashi 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 ------- moutain Shima ----- island, islet Se -------- shoal Suido ----- channel Take ------ mountain Wan ------- bay Yama ------ mountain -------- New,20100701,JP,JP,graph,chart0131 Updated,20130531,JP,JP,graph,NtM2013-0400 Updated,20230504,JP,JP,graph,chart0106 Updated,20250530