Chart correction N4/21 — chart 37248

37248 20Ed. 3/17/12 LAST NM N2/21 N4/21 Delete Depth 6.8 meters 51°35′40″N 3°21′42″E Add Drying height 0.2 meter [I15], drying tint and enclosing depth contour (0-meter) centered 51°26′15″N 3°31′23″E Depth 6.2 meters 51°35′34″N 3°21′53″E Depth 5.5 meters 51°30′52″N 3°24′41″E Depth 0.1 meter 51°26′37″N 3°32′35″E Depth 0.3 meter 51°31′46″N 3°24′36″E (See N4/20) (46-47(348)20 Den Haag)

Source: NGA U.S. Notice to Mariners · edition: 20Ed. 3/17/12

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