Chart correction N22/20 — chart 93721

93721 7Ed. 3/30/19 LAST NM N20/20 N22/20 Delete Depth contour (5-meter) between 22°16′28″N 113°47′01″E 22°16′11″N 113°47′15″E Depth 5.4 meters 22°16′49″N 113°47′01″E Depth contour (5-meter) joining 22°17′14″N 113°46′52″E 22°17′02″N 113°47′07″E 22°17′07″N 113°47′10″E Depth 4.5 meters 22°17′04″N 113°47′08″E Depth 4.7 meters 22°17′19″N 113°46′54″E Depth 2.1 meters 22°25′44″N 113°51′08″E Depth 2.1 meters 22°25′25″N 113°50′46″E Depth 2.8 meters 22°24′18″N 113°51′15″E Substitute Note “HONG KONG-ZHUHAI-MACAU BRIDGE All vessels passing through the main structure of the bridge should select the appropriate channel and navigation span according to the depth of the bridge section channel and the vertical clearance of the navigation span. Overtaking, crossing within the bridge channel and passing through non navigation spans are prohibited.” for note “BRIDGE AND TUNNEL UNDER CONSTRUCTION” 22°41′59″N 113°56′46″E Foul ground symbol [K31.1] for depth 6.6 meters Wk “Rep (1931)” 22°19′36″N 113°50′47″E Depth 4.1 meters for 4.8 meters 22°19′33″N 113°50′40″E Add Vertical clearance [D22] 24 meters to bridge 22°14′52″N 113°38′58″E Vertical clearance [D22] 20 meters to bridge 22°14′50″N 113°38′48″E Vertical clearance [D22] 20 meters to bridge 22°14′55″N 113°39′10″E Depth contour (5-meter) joining 22°16′28″N 113°47′01″E 22°16′53″N 113°46′56″E 22°16′57″N 113°46′47″E 22°17′14″N 113°46′52″E Depth contour (5-meter) joining 22°16′11″N 113°47′15″E 22°17′00″N 113°47′14″E 22°17′07″N 113°47′10″E and add blue tint W of above line Depth 0.9 meter 22°25′45″N 113°51′00″E Depth 1.4 meters 22°25′44″N 113°51′08″E and extend depth contour (2-meter) SW to enclose above depths (2) Depth 4.2 meters 22°16′46″N 113°47′05″E Depth 3.8 meters 22°17′11″N 113°47′00″E (continued on next page) SECTION I NM 22/20 I-1.13 93721 (Continued) Add Depth 1.9 meters 22°25′31″N 113°50′50″E and extend depth contour (2-meter) NE to enclose Depth 1.1 meters enclosed by depth contour (2-meter) centered 22°25′01″N 113°50′56″E Buoy “T19” G, conical, Fl G 4s 22°24′52″N 113°51′15″E Buoy Y, pillar, “X” topmark, Mo(O) Y 12s AIS [Q130.6] 22°34′12″N 113°44′05″E Buoy Y, pillar, “X” topmark, Mo(O) Y 12s AIS [Q130.6] 22°26′59″N 113°40′11″E Depth 1.4 meters enclosed by depth contour (2-meter) centered 22°24′22″N 113°51′15″E Buoy “No 1” Y, pillar, “X” topmark, Mo(Z) Y 12s [Q130.6] 22°43′12″N 113°40′08″E Buoy “G11” Y, pillar, “X” topmark, Mo(O) Y 12s [Q130.6] 22°34′31″N 113°44′47″E Depth 4.9 meters, blue tint and enclosing depth contour (5-meter) centered 22°20′23″N 113°47′02″E (7(21)18 Hong Kong; 20(860), 31(1287)18, 9(233), 24(781), 43(5474), 46(1496)19 Taunton; CHN CH 15448, 15471, 15431; UKHO ARCS 341-0)

Source: NGA U.S. Notice to Mariners · edition: 7Ed. 3/30/19

Reference information — always verify against official Notices to Mariners before navigation.