FISHING STAKES Mariners are cautioned that Fishing Stakes are liable to be met within depths of less than 20 metres covered by this chart, except for the SW Monsoon. OMISSION OF NAVIGATIONAL AIDS AND MAINTAINED DEPTHS Certain lights, buoys, berths, maintained depths, etc. have been omitted from this chart. For details, the large scale charts and the List of Lights should be consulted. CURRENTS The currents are of monsoonal origin, but tend to follow the trend of the coast. In December and January sets are north-westerly with rates of upto 1 knot. In July and August, when the SW Monsoon is well established, south easterly sets with rates of upto 2 knots are experienced. Exceptionally onshore sets of upto 1,5 knots are experienced during the NE Monsoon and upto 3 knots during the SW Monsoon. For further information see Sailing Directions. Tidal streams Harbour. Tidal streams within the port of Bombay set, with rates of 3/4 to 3 kn, as follows. East side of the harbour, in-going stream: The stream sets NE abreast Karanja Island, setting more ENE after passing Karanja Beacon. Between Butcher Island and Elephanta Island the stream sets N, but towards Trombay Island it becomes NE. West side of the harbour, in-going stream: The stream sets NNE, from Sunk Rock to Cross Island with a rate of 2 kn; N of Tucker Beacon (18º 56'.l N, 72º 52'.5 E), where the stream separates, a branch of it turns N until abreast Mazagaon Dockyard; then the stream sets between NE and ENE to join the stream from the E side of the harbour N of Butcher Island. East side of the harbour, out-going stream: The stream starts later here than on the W side of the harbour. The stream sets SW, from the channel between Butcher Island and Elephanta Island, along the NW coast of Karanja Island; when abreast the entrance to Dharamtar Creek it sets WSW. West side, of the harbour, out-going stream: The stream at ordinary tides starts 30 to 35 minutes earlier than on the E side of the harbour; during strong spring tides the stream on the W side may start 40 minutes to 1 hour earlier. Inshore and near Indira Dock Wall, during the SW monsoon, the stream starts about 45 minutes before high water Bombay. The stream sets SW from Trombay Island to Mazagaon Dockyard. The stream sets SSW, from abreast Cross Island to W of Middle Ground Islet; in the middle of the harbour the set is S to SSW. The set is between S and SSW, from Middle Ground Islet to Sunk Rock, but with the start of this stream the set off Sunk Rock is more W-going. MAINTAINED DEPTHS Maintained depths shown in the chart are likely to change due to siltation. Mariners are advised to contact Port authorities for latest information. ANCHORING AND TRAWLING PROHIBITED Ships are prohibited from anchoring and trawling in the area marked by ‘T’ shaped dashed lines due to the existence of gas pipelines and submarine cables. For details see also Indian Notices to Mariners Special Edition Notice No 13. SUBMARINE CABLES View serious consequences resulting from damage to submarine cables, vessel operators should take special care when navigating, anchoring, fishing, trawling, mining, dredging or engaging in any underwater operations in the vicinity. Where these cables may exist or have been reported to exist. In order to minimize the risk of such damage as much as possible, vessel should avoid any such underwater activities at a minimum distance of 0.5 NM on either side of submarine cables as shown on the chart. For details see also Indian Notices to Mariners Special Edition Notice No 13. OIL AND GAS PIPELINES Oil and gas pipelines contain flammable material under high pressure. Any ship damaging a pipeline could face an immediate fire hazard. Mariners are strongly advised not to anchor or trawl in the vicinity of pipelines. PRECAUTIONARY AREA Mariners are warned that vessels including those entering and leaving Naval Dockyard, Indira Dock, JNPT channel and Oil Jetty are likely to cross in these areas within the main Mumbai approach channel. VESSEL REPORTING For details of Mumbai Port Vessel Traffic Service, see Indian List of Radio Signals, Volume 6. CHANNELS Depths and Navigational Aids in proposed channels are liable to be changed. Mariners are advised to consult from port authorities prior entering into the channels. The proposed Tata Coal Berth channel, Thane Creek channel & Panvel channel are passing through pylon no. MP-71, MP-126 & MP-184 respectively. The Mumbai Ports Channel is marked by 38 AIS and 06 V-AIS which are depicted within the chart limit. ANCHORAGE AREA (BRAVO EAST AND WEST) Smaller vessels may anchor in BRAVO ‘EAST’ and other vessels in BRAVO ‘WEST’ in accordance with the charted depths keeping clear off the submarine cables, foul ground, charted dangers and navigational aids.