Chart correction N7/21 — chart 37229

37229 16Ed. 2/2/13 LAST NM N4/21 N7/21 Delete Depth 7 meters 53°44′16.3″N 9°25′07.3″E Substitute Depth 6.9 meters for 7.2 meters 53°42′40.8″N 9°28′27.0″E Add Danger circle “Obstn” [K40] 53°34′02.8″N 9°42′12.5″E Depth 6.4 meters 53°44′15.0″N 9°25′06.0″E (51(1660), 52-53(1640)20 Hamburg)

Source: NGA U.S. Notice to Mariners · edition: 16Ed. 2/2/13

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